Preface
The goals and principles of standardization in the Russian Federation have been established Federal Law of December 27, 2002 No. 184-FZ“On technical regulation”, and the rules for applying national standards of the Russian Federation - GOST R 1.0-2004“Standardization in the Russian Federation. Basic provisions"
Standard information
1 PREPARED by the Technical Committee for Standardization of Personal Protective Equipment TK 320 “PPE” based on its own authentic translation of the standard specified in paragraph
2 INTRODUCED by the Technical Committee for Standardization of Personal Protective Equipment TK 320 “ PPE"
3 APPROVED AND ENTERED INTO EFFECT by Order of the Federal Agency for Technical Regulation and Metrology dated December 25, 2007 No. 398-st
5 INTRODUCED FOR THE FIRST TIME
Information about changes To present standard published V annually published informational index "National standards", A text changes And amendments - V monthly published information signs "National standards". IN case revision (replacements) or cancellations present standard appropriate notification will published V monthly published informational index "National standards". Corresponding information, notification And texts are placed Also V informational system general use - on official website Federal agencies By technical regulation And metrology V networks Internet
NATIONAL STANDARD OF THE RUSSIAN FEDERATION
Occupational Safety Standards System
CLOTHING FOR PROTECTION AGAINST HEAT AND FLAMES
Test methods and performance characteristics of thermal protective clothing
Occupational safety standards system. Clothing for protection against heat and flame.
Test methods and performance requirements for heat-protective clothing
Date of introduction - 2008-07-01
1 area of use
This standard applies to protective clothing for workers working in elevated temperatures. Clothing consists of outerwear items made of elastic material to protect specific parts of the human body. The standard also applies to hoods and gaiters, but does not apply to other types of protection for the head, arms and legs.
This standard specifies the performance characteristics and testing methods of materials for protective clothing and provides, where necessary, recommendations for the design of clothing.
Protective clothing complying with this standard is intended to protect workers from brief exposure to flame and from at least one form of heat. The heat can be in the form of convective heat, radiant heat, large splashes of molten metal, or a combination of these thermal hazards. Protective clothing complying with this standard may not be fully suitable for some activities performed by firefighters and welders.
2 Normative references
This standard uses normative references to the following standards:
ISO 3175:1995 Textiles. Determination of resistance to machine dry cleaning
ISO 6330:1984 Textiles. Home washing and drying methods for testing
ISO 6942: 1993 Clothing for protection from heat and fire. Test methods. Evaluation of materials and packages of materials exposed to a thermal radiation source
ISO 9151:1995 Clothing for protection against heat and fire. Determination of heat transfer when exposed to flame
ISO 9185:1990 Protective clothing. Evaluation of material resistance to molten metal splash
ISO 13688:1998 Protective clothing. General requirements
ISO 15025:2000 Clothing for protection against heat and fire. Test method for limited flame propagation
3 Sampling
Samples selected for testing shall be representative of the material and/or materials as they are used in the complete garment. Patterns can also be cut from clothing. These may include, if specified in the specific requirements, design features such as seams, joints or fasteners.
4 Test conditions
Unless otherwise stated (see ), all tests are carried out on the material in as-delivered condition.
5 General requirements
5.1 Dimensions
Dimensions of protective clothing should be calculated in accordance with ISO 13688.
5.2 Sizing changes
When tested according to ISO13688 dimensional changes of the material shall not exceed 3% in any direction along the length or width after five cycles of processing carried out in accordance with the manufacturer's instructions. If both wash and dry clean are allowed, only five wash cycles are performed.
6 Performance characteristics
6.1 General provisions
Protective clothing claimed to comply with this standard shall meet the flame spread requirement (code A) and at least one heat transfer requirement (code A).B to E) at level 1 or higher.
Table 1 - Performance levels: convective heat test
| Heat transfer index ( HTI) |
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| no less | no more |
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6.4 Thermal radiation (code C)
When tested in accordance with Method B of ISO 6942 at a heat flux density of 20 kW/m2, all garments claiming to provide radiation thermal protection shall meet at least the performancelevel C1 of the table. Tests on metallized fabrics should be carried out after pre-treatment as specified in the application. The operating level, designated by the number from C1 to C4, corresponds to the characteristics given in the table.
Table 2 - Performance levels: thermal radiation test
| Average time to levelt 2 , s |
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| no less | no more |
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6.5 Splash of molten aluminum (coded D)
185 using molten aluminum, all clothing claimed to provide protection against molten aluminum splashes must meet at least the performance level D 1 tables. Operating level, indicated by a number from D 1 to D 3, corresponds to the characteristics given in the table.
Table 3 - Operational levels: splash of molten aluminum
| Mass of molten aluminum splash, g |
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| no less | no more |
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When tested in accordance with ISO 9185 using molten iron, all garments claimed to provide protection against molten iron splashes must meet at least performance level E1 of Table 1. The operating level, designated by the number E1 to E3, corresponds to the characteristics given in the table.
Table 4 - Operational Levels: Molten Iron Splash
| Mass of molten iron, g |
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| no less | no more |
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Notes
NOTE 1 Testing in accordance with ISO 9185 is terminated when no failure of the polyvinyl chloride (PVC) coating is detected in four successive tests on new specimens using the same mass of molten metal. Therefore, to ensure that a material used meets the requirements of this standard for a particular grade of metal, it is sufficient to carry out four tests using that metal at the appropriate specified lower limit value and obtain results indicating that there is no damage to the PVC coating in all four tests.
2 Acceptable characteristics obtained during testing in accordance with ISO 9185 using molten aluminum generally provide the basis for a conclusion about the suitability of the material for protection against molten aluminum bronze and molten minerals.
3 Acceptable characteristics obtained during testing in accordance with ISO 9185 using molten iron, usually form the basis for a conclusion about the suitability of the material for protection against molten copper, phosphor bronze and brass.
7 Additional requirements for clothing
Clothing designed to protect against splashes of molten metal must have the following design features:
a) the jacket must be long enough to cover the top of the trousers even when the worker bends over;
b) trousers must be wide and long enough, slouchy enough to cover the top of the shoes, and there must be no cuffs;
c) external pockets of a jacket or overalls, in cases where they are provided, must have flaps, the width of which is at least 20 mm greater than the width of the pockets themselves, and the flaps must not bend inside the pockets;
d ) overlapping seams on the outside of the garment should be placed down and stitched with an overlocker;
e) to prevent molten metal from sticking, any metal fasteners on the outside of clothing should be covered or treated appropriately;
f ) quick-release fastenings must be provided in order to quickly remove clothing in case of danger;
g ) enhanced protection should be provided in the crotch, shoulder and neck areas.
8 Marking
Labeling of clothing meeting the requirements of this standard must be complete, clear, accurate and contain the following information:
Name, trademark or other information identifying the manufacturer;
Type designation, trade name or code for clear identification;
ISO size designation 13688;
A pictogram (Figure ) indicating the designation of this standard and the performance levels for characteristic A (limited flame spread) and for at least one of the other characteristics B to E.
Figure 1 - Pictogram: Clothing for protection against heat and flame
Notes
1 Codes fromA to E correspond to the various characteristics listed in -.
2 The limited flame propagation characteristic (A) is recorded in any case. In addition, the icon includesonly those additional characteristics that correspond to this material and have been confirmed during testing.
3 Each letter is followed by a number indicating the operating level. The number 1 indicates the lowest operating level.
4 It is possible to include additional designation ( F ) when testing the material for contact heat transfer according to ISO 12127.
5 Basic pictogram according to ISO 7000.
9 Operating instructions
9.1 General provisions
Protective clothing must be accompanied by appropriate information for proper use. Information must be clear and understandable, written down orin the language of the manufacturer’s country, or in the language of the user’s country.
9.2 Explanation of markings
The manual should include an explanation of the labeling system (see section ).It should contain basic information regarding the application, including details of performance levels (see section ) together with the source and data obtained during the application. It should also contain a warning that the clothing should only be used for the specified purpose.
9.3 Care and operation
Special storage requirements;
Instructions on how to take off and put on clothing.
Appendix A
(required)
Mechanical pre-treatment of metallized materials
A.1 Principle of the method
The effectiveness of metallized coatings in reflecting thermal radiation can be significantly reduced due to wear and tear of the material. This method allows us to simulate the effect of reuse. The samples are machined using a testing machine that simultaneously twists and compresses them.
A.2 Sampling
Samples measuring 280×280 mm is selected from the material or clothing. The sample may have a seam if it is impossible to select a sample of the specified size without a seam.
Notes e - The sample size must be sufficient to wrap around the circumference of the discs, except overlapping the discs at each end. For subsequent tests, only the central part of the sample is used. Therefore, for subsequent tests according to the ISO 6942 method, two samples with dimensions of 230 × 70 mm are taken from each material sample.
A.3 Test setup
The test setup (see figure) consists of two disks with a diameter of (90 ± 1) mm and a thickness of (12.0 ± 0.5) mm. One disk is fixed, and the other is mounted on a grooved shaft so that its movement in the direction of the fixed disk occurs in two stages:
a) move forward by (90± 5) mm, accompanied by rotation by 450° ± 10° followed by
b) forward movement without rotation.
If the distance between the disks is initially (190 ± 1) mm, then at the end after moving forward it should be (35 ± 2) mm.
The movement of the rotating disk must be uniform, except for the moment when the rotational movement changes to translational movement and vice versa. One cycle should cover one forward and one backward movement. The device should perform (40 ± 4) cycles per minute.
A.4 Test procedure
Set the distance betweentwo disks (190 ± 1) mm. Fix the sample on the disks without tension and with the coating directed outward. In this case, the sample itself should protrude beyond the edges of both disks.
The sample is subjected to 2500 cycles. Every 500 cycles (approximately 12.5 min) the sample should be removed, rotated 90° and re-clamped. reference international standards System of occupational safety standards. Clothing to protect against heat and fire. Methods for assessing materials and packages of materials exposed to a source of thermal radiation
ISO 9151:1995
GOST R ISO 9151-2007 System of occupational safety standards. Clothing to protect against heat and flame. Method for determining heat transfer when exposed to flame
ISO 9185:1990
GOST R ISO 9185-2007 System of occupational safety standards. Special protective clothing. Method for assessing the resistance of a material to splash of molten metal
ISO 13688:1998
ISO 15025:2000
GOST R ISO 15025-2007 System of occupational safety standards. Clothing to protect against heat and fire. Test method for limited flame propagation
* There is no corresponding national standard. Before its approval, it is recommended to use the Russian translation of this international standard. A translation of this international standard is located in the Federal Information Fund of Technical Regulations and Standards.
Keywords:work clothes, heat protection, flame protection, protective clothing, performance characteristics, clothing sizes, tests, test parameters, markings
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INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION
INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION
INTERSTATE GOST ISO STANDARD 11612_
System of occupational safety standards CLOTHING FOR PROTECTION AGAINST HEAT AND FLAME
(ISO 11612:2008, UT)
Official publication
Standardinform
Preface
The goals, basic principles and basic procedure for carrying out work on interstate standardization are established by GOST 1.0-92 “Interstate standardization system. Basic provisions" and GOST 1.2-2009 "Interstate standardization system. Interstate standards, rules and recommendations for interstate standardization. Rules for development, acceptance, application, updating and cancellation"
Standard information
1 PREPARED by the Technical Committee for Standardization of Personal Protective Equipment TK 320 “PPE” based on an authentic translation into Russian of the standard specified in paragraph 5
2 INTRODUCED by the Federal Agency for Technical Regulation and Metrology
3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (protocol dated October 20, 2014 No. 71-P)
4 By Order of the Federal Agency for Technical Regulation and Metrology dated October 31, 2014 No. 1477-st, the interstate standard GOST ISO 11612-2014 was put into effect as a national standard of the Russian Federation on December 1, 2015.
5 This standard is identical to the international standard ISO 11612:2008 Protective clothing - Clothing to protect against heat and flame.
The international standard was developed by the technical committee for standardization ISO/TC 94 “Personal protective equipment. Protective clothing and equipment" of the International Organization for Standardization (ISO).
Translation from English (ep).
The name of this standard has been changed relative to the name of the specified standard to bring it into compliance with GOST 1.5-2001 (clause 3.6).
Official copies of the international standard on the basis of which this interstate standard was prepared, the international standards to which references are given, are located in the Federal Information Fund of Technical Regulations and Standards.
Information on the compliance of interstate standards with reference international standards is given in Additional Appendix DA.
Official copies of the international standard on the basis of which this standard and the international standards to which references are given are prepared are available in the Federal Information Fund of Technical Regulations and Standards.
Degree of compliance - identical (UT)
6 INTRODUCED FOR THE FIRST TIME
A. The thermal radiation transfer rate is taken to be the minimum value obtained from testing the number of specimens specified in ISO 6942, rounded to the nearest 0.1 s.
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Table2 -Protection levels: thermal radiation test |
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7.4 Molten aluminum splash (code D)
When tested in accordance with ISO 9185 using molten aluminum, single or multi-layer garments and/or garments claimed to provide protection against molten aluminum splash shall meet at least protection level D1 of Table 3.
Notes
NOTE 2 Acceptable performance obtained from testing in accordance with ISO 9185 using molten aluminum generally provides a basis for determining the suitability of the material for protection against molten aluminum bronze and molten minerals.
7.5 Molten Iron Splash (Code E)
When tested in accordance with ISO 9185 using molten iron, single or multi-layer articles and/or garments claiming to provide protection against molten iron splash shall meet at least protection level E1 of Table 4.
Notes
1 Chevrons, labels, fittings, contact tape, reflective materials, etc. located on the product can impair the protective performance of clothing and/or clothing sets.
NOTE 2 Acceptable performance obtained from testing in accordance with ISO 9185 using molten iron generally provides a basis for determining the suitability of a material for protection against molten copper, phosphor bronze and brass.
7.6 Contact heat transfer (code F)
When tested in accordance with ISO 12127 at 250 °C, single or multi-layer garments and/or garments claiming to provide protection against contact heat transfer shall meet at least protection level F1 of Table 5. The threshold time shall be taken as the minimum value , obtained by testing the number of samples specified in ISO 12127, rounded to the nearest 0.1 s.
7.7 Protection against thermal risks from electric arcs (additional requirement)
Annex F includes comments that can be used as guidance for users whose work conditions involve an arc hazard and where there is a need to determine clothing requirements to protect against the thermal hazards of an arc.
7.8 Testing of a set of protective clothing to predict burns (additional test)
A set of personal protective equipment or multi-layered workwear that meets this standard may be additionally tested to ISO13506 for the prediction of burns. If this test is carried out, a test dummy is used; testing on humans is prohibited.
The test kit includes additional devices that are used in conjunction with special clothing during operation.
Test procedures according to ISO 13506 are given in Annex C.
Note - The practice of testing according to ISO 13506 shows that obtaining the most complete and reliable information about the protective properties of single-layer and multi-layer sets of workwear ensures testing at an incident energy value of 84 kW/m 2 with a minimum exposure time of 4 s. When testing multi-layer clothing sets, it may be necessary to increase the flame exposure time to 8 s. Additional research is needed to determine a consistent correlation between test conditions and actual flame exposure. For reasons depending on the test methodology, the reproducibility of test results decreases when the flame exposure time is less than 3 s. In this regard, the flame exposure time cannot be less than 3 s.
8 Marking
8.1 Marking of workwear is carried out in accordance with section 8, and also in accordance with IS013688.
8.2 Marking of protective clothing that meets the requirements of this standard must contain the pictogram shown in Figure 1, which includes a reference to this standard and its year of adoption, as well as the levels of protection established when testing in accordance with sections 6 and 7.
A B C D, etc.
Figure 1 - Pictogram of protective clothing for protection against heat and flame
8.3 All products that comply with this standard must be marked with protection levels for code A1 and/or A2 and at least one of codes B, C, D, E, F with the corresponding digital value of the protection level. The pictogram shall also contain codes for additional protective properties if such protection has been tested and installed.
8.4 If the protective clothing has been tested and meets the requirements of 6.6, then the pictogram must contain the code designation “W” followed by the obtained level of protection in digital terms.
According to EN 343, there are three levels of protection in terms of resistance to water penetration and resistance to water vapor. The pictogram of workwear that meets the requirements of 6.6 must
have two digital symbols after the code “W”, the first of which indicates the level of protection in terms of resistance to water penetration, the second - in terms of resistance to water vapor. For example, if workwear has level 2 protection in terms of resistance to water penetration and level 3 protection in terms of resistance to water vapor, its pictogram should contain the code designation “W23”.
8.5 If compliance with the requirements of this standard is achieved only through the simultaneous use of several items of clothing, each of them must be labeled with instructions on compliance with completeness.
8.6 The marking of disposable workwear must contain the warning “For single use”.
8.7 The marking must contain the pictogram according to the ISO 7000-2417 standard, shown in Figure 1.
9 Operating instructions
9.1 Protective clothing against heat and flame is accompanied by information in the official language(s) of the country of destination.
9.2 The instruction manual shall comply with the requirements of ISO 13688. It shall contain detailed information on the durability of the protective properties of the product, especially resistance to cleaning. If restoration of protective properties is possible by applying a finish, then indicate the maximum number of cleaning cycles after which application of a finish is required to restore the protective properties.
9.3 The instruction manual must contain information about items of protective clothing, the use of which will provide protection in accordance with the requirements of this standard.
9.4 The instruction manual must indicate that in the event of chemical or flammable liquids coming into contact with clothing, the consumer must immediately remove contaminated clothing with care, avoiding contact of liquids with skin. Contaminated clothing must be cleaned or removed from use.
9.5 If additional tests have been carried out by the manufacturer on the complete garment in accordance with 7.8, the instructions for use shall contain at least the test results listed in paragraph d) of Annex C of this standard.
9.6 The instruction manual for protective clothing against splashes of molten aluminum and/or iron that meets the requirements of 7.4 and/or 7.5 of this standard must contain instructions on what to do if a splash gets on clothing. If a situation arises when a splash gets on your clothing, it is recommended to leave the workplace and take off your overalls. The manufacturer must indicate that there is a risk of burns if molten metal splashes onto clothing that comes into contact with human skin.
Appendix A (mandatory)
Mechanical preparation of metallized materials
A.1 Principle of the method
The effectiveness of metallized coatings in reflecting thermal radiation can be significantly reduced due to wear and tear of the material. This method allows us to simulate the effect of repeated use. The samples are subjected to mechanical preparation using a testing machine that simultaneously twists and compresses them.
A.2 Sampling
Samples measuring 280x280 mm are taken from material or clothing. The sample may have a seam if it is impossible to select a sample of the specified size without a seam.
NOTE The sample size should be large enough to wrap around the discs, with the sample overlapping at each end. For subsequent tests, only the central part of the sample is used. Therefore, for subsequent tests according to the ISO 6942 method, two samples measuring 230 x 70 mm are taken from each material sample.
A.3 Test setup (see Figure A.1)
The test setup consists of two disks with a diameter of (90 ± 1) mm and a thickness of (12.0 ± 0.5) mm. One disk is fixed, and the other is mounted on a grooved shaft so that its movement in the direction of the fixed disk occurs in two stages:
a) a forward movement of (90 ± 5) mm, followed by a rotation of 450° ± 10°, followed by
b) forward movement without rotation.
If the distance between the discs is (190 ± 1) mm at the beginning, then at the end after moving forward it should be (35 ± 2) mm.
The movement of the rotating disk must be uniform, except for the moment when the rotational movement changes to translational movement and vice versa. One cycle should cover one forward and one backward movement. The device should perform (40 ± 4) cycles per minute.
A.4 Test procedure
Set the distance between the two disks to (190 ± 1) mm. Fix the sample on the disks without tension and with the coating directed outward. In this case, the sample itself should protrude beyond the edges of both disks.
The sample is subjected to 2500 cycles. Every 500 cycles (approximately 12.5 min), the sample should be removed, rotated 90° and re-secured using clamps.
1 - fixed disk; 2 - moving disk; 3- pin; 4 - grooved shaft
a) Movement of the disk
5 - sample; 6 - clamp on disk b) Initial position of the sample
Appendix B (for reference)
Principles of clothing design
B.1 Requirements for the design of heat and flame protective clothing are given in Section 4. This annex contains additional requirements for heat and flame protective clothing when used in conjunction with other protective equipment, for example, gloves, shoes, shields, etc. d.
B.2 The specific requirements of paragraph 4.5 for protective clothing against splashes of molten metal should be taken into account when designing suits for protection against heat and flame.
B.3 If gloves are used, they must be of sufficient length to provide overlap between the sleeves and the gloves to prevent gaps during work operations and the entry of heat, flame or hot material.
B.4 The bottom of the trousers must cover the top of the shoes when walking and performing any work operations.
B.5 All fasteners must be designed to be closed to prevent the entry of heat, flames and hot materials. The fasteners located on the front of the workwear must be closed with a flap along their entire length.
B.6 Fasteners should be easy to unfasten for quick removal of clothing in the event of an emergency.
B.7 Folds on the outside of workwear can trap splashes and splashes of molten metal. Therefore, folds on clothing, if any, should, for example, be located diagonally to remove metal drops from the surface of the clothing or other features.
B.8 When using a balaclava, its design must ensure protection of the required parts of the body, keeping the position of the balaclava itself unchanged and the distance between the joints and joints of the balaclava with clothing unchanged, when performing any movements and changes in the position of the user’s body. If a balaclava is used with a face shield, the level of reduction in visual and auditory perception must be determined to assess the potential hazard.
Appendix C (for reference) Predicting Burns Using a Test Dummy
The test report for a set of protective clothing to predict burns must contain the following information:
a) name and address of the laboratory that carried out the tests in accordance with 7.8.
b) documentary evidence of the following provisions:
1) the test was carried out to evaluate the product;
2) individual items or sets of clothing tested in accordance with 7.8 are made of materials designed and manufactured in accordance with the requirements of this standard, as well as fully satisfying its requirements.
c) information on preparatory operations:
1) a description of any special preparation of the package of materials or set of clothing carried out before testing in accordance with 7.8, or an indication that no preparation was carried out;
2) a description of any holes or cuts made in the package of materials or clothing to accommodate wires or connect parts of the test dummy;
3) the value of the density and duration of exposure to heat flow, duration of exposure, time to obtain test results.
d) Test results containing the following indicators:
1) predicted area of second degree burns (in%);
2) predicted area of third degree burns (in%);
3) predicted total area of burns (the sum of the areas of second and third degree burns as a percentage and the standard deviation for this indicator).
e) Additional information containing the following information:
1) intensity and time of residual combustion;
2) the amount of smoke during the test and after it (if appropriate measurements are taken);
3) change in the size of individual items or a set of protective clothing during the test and after it. The measured parameters and the procedure for calculating the change in dimensions are presented in Table C.1.
Burn prediction tests using a test dummy are carried out in accordance with ISO 13506.
The test report may include any additional information relating to the test to aid in the interpretation of the results obtained.
Table C.1 - Change in sample dimensions after additional tests in accordance with 7.8
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Appendix D (informative)
Checking the ergonomic properties of workwear
D.1 General
This annex provides guidance on conducting natural performance tests of workwear to monitor some of its basic ergonomic characteristics. This annex is not intended to replace the control tests established by the standards for a specific type of product, as well as the acceptance tests performed by the consumer when choosing or purchasing workwear and adapting it to their own needs and the needs of workers in a particular workplace. The practice of conducting performance testing of the ergonomic characteristics of products is intended to ensure that there are no significant deficiencies in workwear, and the test results can be used to improve products.
The inspection of workwear is carried out by an experienced expert or several experts who first analyze the documentation provided by the manufacturer. Test participants put on samples of workwear of the appropriate size, complete with regular clothing, if they are used together, and perform full-scale operational tests according to the list of questions presented in D. 2. Products are considered compliant if all questions are answered positively.
Assessors may have difficulty deciding whether a product is compliant or non-compliant. In this case, it is recommended to compare these products with similar samples on the market. If the ergonomic characteristics of a product are significantly worse and the protective properties are not improved, the product may be rated as excessively uncomfortable. Particular attention should be paid to the comparison results in the absence of similar products, as well as when prescribing protection from hazardous factors leading to death, and the ergonomic characteristics of the workwear do not provide comfortable conditions or create conditions for causing harm during use. Based on the results of operational tests, as a rule, recommendations are drawn up for modifying the workwear, rather than recognizing the clothing as non-compliant with this standard.
D.2 Checklist for assessing performance test results
D.2.1 Question: Are the clothing free of sharp or hard edges, exposed wire ends, rough surfaces, or other parts or features on the back or front that could cause harm to the consumer or others?
Overalls are subject to organoleptic control in order to confirm the absence of the above-mentioned elements (parts) that could cause harm.
D.2.2 Question: Is it possible to put on and take off protective clothing without difficulty?
The following aspects should be taken into account:
Ease of putting on and removing protective clothing with the help of other persons or without outside help, depending on the type of protective clothing;
Does the workwear cause discomfort, does it interfere with deep breathing and does it cause difficulty in blood circulation anywhere;
The construction of the garment, for example, whether the armholes, crotch and midseam junctions have the correct proportions and placement.
D.2.3 Question: Is it possible to use fasteners, fittings and fixing devices?
elements without difficulty?
Availability of an adequate range of fitting means;
Ease of use and reliability of fasteners and fittings;
Are the fasteners, fittings and fastening elements strong enough to withstand the forces that may be generated by body movement?
D.2.4 Question: Can you do the following without difficulty?
a) stand, sit, walk, go up and down stairs;
b) raise both arms above your head;
c) lean forward and pick up a small object, such as a pencil.
The following evaluation criteria must be used:
The length of the sleeves and legs should not interfere with the movement of the arms and legs;
Workwear should not be excessively loose and develop, or move independently and causing inconvenience;
There should be no unexpected or unforeseen open gaps between one or different elements of workwear;
Any unreasonable restrictions.
D.2.5 Question: Does the protective clothing cover the protected part of the body and provide the specified protection during movement?
The following evaluation criteria must be used:
Complete coverage of any protected parts of the body with materials or special design elements of workwear;
Maintaining protection during predicted extreme movements.
D.2.6 Question: Is this workwear compatible with other personal protective equipment (PPE) in the kit?
The following evaluation criteria must be used:
The protective clothing usually worn as part of the kit must be compatible with the presented samples of the remaining PPE of the kit.
Putting on and taking off other types of PPE included with overalls, such as gloves and boots, should be easy.
D.3 Grounds for recognizing products as non-conforming
The following criteria are sufficient grounds for declaring workwear inappropriate and unsuitable for use:
a) the size of the clothing does not correspond to that indicated on the label;
b) workwear spontaneously unfastens during use or creates inconvenience due to displacement unintended by the design;
c) the use of protective clothing creates a risk of failure of a vital function, such as breathing;
d) performing the necessary simple movements (actions) in overalls is impossible;
e) the assessment participant refuses to continue the assessment due to pain caused by the use of protective clothing;
f) overalls do not allow the use of other necessary elements
workwear or other types of personal protective equipment that are included in a specific kit and therefore do not provide the required protection.
Information about changes to this standard is published in the annual information index “National Standards”, and the text of changes and amendments is published in the monthly information index “National Standards”. In case of revision (replacement) or cancellation of this standard, the corresponding notice will be published in the monthly information index “National Standards”. Relevant information, notifications and texts are also posted in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet
© Standardinform, 2015
In the Russian Federation, this standard cannot be fully or partially reproduced, replicated and distributed as an official publication without permission from the Federal Agency for Technical Regulation and Metrology
Appendix E (for reference)
Risk assessment
This standard provides several levels of protection against various influences.
There is a risk that when selecting protective clothing for heat and flame without first conducting a comprehensive and effective risk assessment, users may be offered inappropriate levels of protection that are underestimated and inappropriate to the risks and the workplace in which the work is performed.
The user of the workwear is responsible for the correct assessment of the degree of risk and is not covered by the standard. Many countries have legislated that this responsibility rests solely with the employer.
The worker must be provided with protective clothing that meets the requirements of this standard and protects against all types of hazards that may arise when performing work operations. The choice of type and levels of protective clothing should be based on a risk assessment before making a purchasing decision.
Currently, there are several methods for assessing risk, some methods are under development.
It must be remembered that technological processes and various safety concepts are the determining criteria when establishing levels of protection, and the initial risk assessment is the initial procedure for selecting protective clothing, and not an end in itself.
The consumer must ensure that a product that meets the requirements of this standard (including gaiters, balaclava and gaiter) has a level of protection commensurate with the level of risk derived from the risk assessment.
Appendix F (informative)
Protection against thermal risks of electric arc
An electric arc produces many hazards, and temperature is only one of many others. The arc energy value determines the level of protection of a material or package of materials from the thermal risks of an electric arc, expressed as J/cm 2 or kW*s/m 2 .
An electric arc produces incident energy on a surface of a higher level, but of much shorter duration than a flash flame. The risk assessment must consider the likelihood of an arc occurring and the severity of the consequences if it does occur.
The test procedure to determine the level of protection of fabrics and clothing from the thermal risks of an electric arc is determined by the International Electrotechnical Committee IEC/TC 78. Currently, the test method is determined by the IEC 61482-1 standard. The test method is also specified by IEC 61482-1-2, which is a revision of DD ENV 50354, which considered fire resistance without taking into account thermal insulating protection.
The IEC 61482-2 standard addresses the requirements for protective clothing to protect against the thermal hazards of an electrical arc.
INTERSTATE STANDARD
System of occupational safety standards CLOTHING FOR PROTECTION AGAINST HEAT AND FLAME.
General requirements and performance characteristics
Occupational safety standards system. Clothing for protection against heat and flame. General and performance requirements
Date of introduction - 2015-12-01
1 area of use
This standard applies to special clothing (hereinafter referred to as workwear), as well as personal protective equipment for the head and legs - balaclavas, gaiters and shoe covers, designed to protect against short-term exposure to open flames, thermal radiation, convective heat, contact with hot objects, splashes of molten metal .
This standard does not apply to shields and personal respiratory protection equipment, protective clothing intended for firefighters and welders.
2 Normative references
This standard uses normative references from the following standards:
ISO 3071: 2005, Textiles -- Determination of pH of aqueous extract
ISO 3376:2002, Leather. Physical and mechanical tests. Determination of tensile strength and percentage extension (Leather. Physical and mechanical tests. Determination of tensile strength and relative elongation)
ISO 3377-1:2002, Leather. Physical and mechanical tests. Determination of tear load. Part 1. Single edge tear (Leather. Physical and mechanical tests. Determination of tear load. Part 1. Tear along one edge)
ISO 4045:2008, Leather -- Chemical tests -- Determination of pH
ISO 4048:2008, Leather -- Chemical tests -- Determination of matter soluble in dichloromethane and free fatty acid content
ISO 5077:2007, Textiles -- Determination of dimensional change in washing and drying
ISO 6942:2002, Protective clothing. Protection against heat and fire. Method of test: Evaluation of materials and material assemblies when exposed to a source of radiant heat (Heat- and fire-resistant protective clothing. Test methods. Evaluation of materials and combinations of materials exposed to thermal radiation from a source)
ISO 7000:2004, Graphical symbols for use on equipment -- Index and synopsis
ISO 9151:1995, Protective clothing against heat and flame - Determination of heat transmission on exposure to flame
ISO 9185:2007, Protective clothing -- Assessment of resistance of materials to molten metal splash
ISO/TR 11610:2004, Protective clothing - Vocabulary
ISO 12127:1996, Clothing for protection against heat and flame - Determination of contact heat transmission through protective clothing or constituent materials ISO 13506:2008, Protective clothing against heat and flame -- Test method for complete garments --Prediction of burn injury using an instrumented manikin
ISO 13688:1998, Protective clothing - General requirements
Official publication
ISO 13934-1:1999, Textiles - Tensile properties of fabrics - Part 1: Determination of maximum force and elongation at maximum force using the strip method strip method)
ISO 13935-2:1999, Textiles - Seam tensile properties of fabrics and made-up textile articles - Part 2: Determination of maximum force to seam rupture using the grab method. 2. Determination of the maximum force to break a seam using the gripping method)
ISO 13937-2:2000, Textiles. Tear properties of fabrics. Part 2. Determination of tear force of trouser-shaped test specimens (Single tear method)
ISO 13938-1:1999, Textiles - Bursting properties of fabrics - Part 1: Hydraulic method for determination of bursting strength and bursting distension
ISO 15025:2000, Protective clothing - Protection against heat and flame - Method of test for limited flame spread
ISO 17493:2000, Clothing and equipment for protection against heat. Test method for convective heat resistance using a hot air circulating oven
EN 343:2003, Protective clothing. Protection against rain (Protective clothing. Protection from rain)
3 Terms and definitions
The following terms with corresponding definitions are used in this standard:
3.1 aging: Change in the performance characteristics of a product during its use or storage.
NOTE Aging is caused by a combination of several factors, such as:
Cleaning, repair or disinfection processes;
Exposure to visible and/or ultraviolet radiation;
Exposure to high or low temperatures, temperature changes;
Exposure to chemical factors, incl. humidity;
Mechanical impact: abrasion, bending, pressure, stretching;
Exposure to pollution: dirt, oil, splashes of molten metal, etc.;
3.2 cleaning: The process of bringing workwear into a hygienic condition suitable for use by removing contaminants.
Note - A cleaning cycle is considered to be washing followed by drying, dry cleaning with ironing or other treatment.
3.3 clothing assembly: A set of clothing items used simultaneously.
3.4 clothing layer (component): Any of the materials used in a material package (3.5).
3.5 component assembly: The collection of all materials used in a multilayer product, arranged in the same sequence as in the finished product.
3.6 conditioning: Holding samples under standard conditions of temperature and relative humidity for a specified period of time.
3.7 gaiter: Removable personal protective equipment for the legs below the knee, which may partially cover the upper part of the shoe.
3.8 product (garment): A separate piece of workwear consisting of one or more layers of material.
Note - In all clauses of this standard where references are made to an item of clothing or clothing, balaclavas, gaiters and shoe covers should also be taken into account.
3.9 accessories (hardware): Auxiliary parts, parts or additional products necessary for the manufacture of workwear (metal and plastic buttons, zippers, etc.).
3.10 hood: Personal protective equipment for the head and neck made of flexible material.
3.11 innermost lining: The inner, body-facing layer of the workwear materials package.
NOTE If the body-facing layer consists of more than one material, then all of them are considered to be the inner layer.
3.12 Interlining: Any layer of a package of workwear materials located between the outer layer and the inner layer.
3.13 material: Flexible materials from which workwear can be made.
3.14 outer material: The outer layer of a package of workwear materials.
3.15 overboots: Single-layer or multi-layer product that covers shoes and protects them from heat and/or flame.
Note - Some types of shoe covers may also protect part of the leg and ankle.
3.16 patch pocket: A pocket stitched on the outside of the workwear.
3.17 pre-treatment standard method of preparing test specimens
Note - Preparation may include a certain number of cleaning cycles, mechanical, thermal or any other influence. The preparation ends with conditioning.
3.18 seam: A permanent connection by any means between two or more parts of material.
3.18.1 main seams: Seams connecting parts of clothing into a single whole.
3.18.2 overlapping seam: A seam formed when one part is stitched onto another with an open or closed cut.
4 Design of workwear 4.1 General provisions
General requirements for protective clothing not covered by this standard shall be in accordance with ISO 13688. If multiple items of clothing are required to be used at the same time to meet the requirements of this standard, each item shall be appropriately marked to indicate that the complete set must be used.
4.2 Dimensions 4.2.1 General
Clothing sizes must comply with ISO 13688.
4.2.2 Types of workwear
Clothing to protect against heat and flames should completely cover the upper and lower body, neck, arms and legs. Overalls may consist of:
a) one item: overalls;
b) a two-piece item consisting of a jacket and trousers (overalls).
The jacket must cover the top of the trousers/overalls by at least 20 cm from the waist when performing all expected work operations and movements.
The compliance of clothing with this requirement is checked visually, as well as by measuring the amount of overlap in all positions and during any movements performed by the user during work operations in clothing of his size.
4.2.3 Protective clothing providing additional protection
Protection from heat and flames of certain parts of the body may be provided by additional products not specified in 4.2.2. Workwear that provides additional protection includes, for example, balaclavas, capes, sleeves, aprons and gaiters. The design of this workwear allows for joint use with the products specified in 4.2.2.
Performance tests of the protective properties of protective clothing that provide additional protection from heat and flame are carried out using a complete set of clothing.
Additional products, such as balaclavas, capes, sleeves, aprons and gaiters must completely cover the parts of the body they are intended to protect, be used in conjunction with workwear of the appropriate size and comply with the requirements of this standard.
The compliance of protective clothing with this requirement is checked visually, including assessing the fit and taking measurements, provided that the user has worn all the necessary additional products with a set of protective clothing of the appropriate size.
4.3 Pockets
If the design of clothing provides for the presence of pockets, then they must be made of material that meets the requirements of 4.5.
4.4 Fittings
The fittings located on the outer layer of the workwear must be insulated from the inner surface of the product.
Compliance with this requirement is checked visually.
4.5 Additional requirements for clothing to protect against splashes of molten metal
Overalls designed to protect against splashes of molten metal, meeting the requirements defined by codes D and E, must have the following design features:
a) the sleeves of jackets and overalls, the lower part of trousers, overalls and bib overalls must not have cuffs;
b) external pockets of jackets, trousers, overalls, bib overalls, with the exception of side pockets located below the waist, the entrance to which has a deviation of no more than 10° from the side seam, must be closed with a flap. To exclude the possibility of tucking the flap into the pocket, the flap should be 20 mm wider than the entrance to the pocket;
c) patch pockets must be made of materials that have the same code designations (A to F) and the same level of protection as the materials of the main product;
d) overlay seams on the outside of the garment should be directed downward and topstitched;
e) fasteners on the front side of products must be closed with flaps. The maximum distance between buttonholes is 150 mm. If the design of the clothing requires the use of zippers, then use zippers with a slider lock in the closed position. Sleeve cuffs may have fasteners to adjust their width. The clasp and the folds it creates should be located on the inside of the cuff. The collar should be buttoned. The trousers may have vents with fasteners in the side seams. The slots and fasteners must be covered with a protective valve.
Compliance of protective clothing with requirements a), b), d) and e) is checked visually. Compliance c) is checked visually and by testing.
NOTE Guidance on the design of clothing to protect against molten metal splashes is given in Annex B.
5 Selection and preparation of test samples
5.1 Sampling
The number and dimensions of samples of materials or finished products provided for various tests are determined in accordance with the requirements of the relevant testing standards.
Samples of materials must be prepared in the same configuration as they are used in finished products. Samples may be cut from finished garments or may be selected from materials or packages of materials in the same configuration as the finished garment.
5.2 Sample preparation
5.2.1 Sample preparation by cleaning
Before testing in accordance with clauses 6 and 7, except 6.8, 6.9.2 and 6.9.3, test specimens shall be prepared by cleaning, if cleaning is permitted in the product manual. In addition, according to 6.3, the limited flame spread test is carried out before and after sample preparation, if cleaning is permitted.
Cleaning is carried out according to the manufacturer's instructions, based on standardized methods. If the number of cleaning cycles is not determined, then five cleaning cycles are carried out. This should be reflected in the information provided by the manufacturer.
NOTE Cleaning instructions provided by the manufacturer typically describe one or more ISO 6330, ISO 15797 or equivalent standardized cleaning processes.
Tests according to 6.8 and 6.9 are carried out on new material (in the condition in which it was received).
GOST ISO 11612-2014
NOTE: Leather and metallized materials should not normally be prepared by cleaning because... The manufacturer's instructions usually indicate that cleaning such materials is not permitted.
5.2.2 Mechanical sample preparation
Before testing to determine thermal radiation in accordance with 7.3, metallized materials must undergo mechanical preparation in accordance with Appendix A.
5.2.3 Aging
Before testing according to 6.3, the samples are subjected to the maximum number of cleanings specified by the manufacturer.
5.3 Conditioning
Before testing, samples of all types of materials, with the exception of leather, are kept in standard atmospheric conditions for at least 24 hours at a temperature of (20 ± 2) °C and relative humidity (65 ± 5)%. Leather samples are kept under the same conditions for at least 48 hours. Testing of the sample begins no later than 5 minutes from the moment the sample is removed from the environment where conditioning was carried out.
6 General requirements 6.1 General provisions
Workwear declared to comply with this standard must meet the requirements of Section 6, with the exception of the requirements of 6.2.2 and 6.6, which are additional, as well as one or more requirements of Section 7. The marking of such products is carried out in accordance with the requirements of Section 8.
6.2 Temperature resistance 6.2.1 Heat resistance at temperature (180 ± 5)°C
When tested in accordance with ISO 17493 at a temperature
(180 ± 5) ° C, all materials and accessories used in the product and/or set of products must not ignite or melt, and also have a shrinkage of more than 5%.
6.2.2 Heat resistance at a temperature of (260 ± 5) ° C (additional requirement)
If the material of a single-layer product or the lining of a multi-layer product comes into contact with human skin when worn, the material is tested in accordance with ISO 17493 at a temperature of (260 ± 5) °C. The material should not ignite or melt, nor should it shrink more than 10%. In this case, the material must comply with the requirements of 6.2.1.
Note - Heat shrinking can potentially reduce the level of protection against thermal hazards of clothing because the insulating air gap between clothing and body is reduced. Therefore, it is necessary to avoid shrinking in protective clothing against heat and flame, especially in cases where there is a potential danger of exposure to heat and flame, and there is a risk of significant percentage damage to clothing.
6.3 Restricted flame spread (coded A1 and/or A2) 6.3.1 General
Testing of materials and seams is carried out in accordance with test method A (code A1) or test method B (code A2) of ISO 15025 or both methods, depending on the types of risks arising when using the workwear for its intended purpose. The test is carried out on samples both before and after they have been prepared in accordance with clause 5.
Fittings or materials that are used on the outer layer of clothing for protection against heat and flame are tested in accordance with Procedure A.
6.3.2 Testing according to ISO 15025, method A (coded A1)
6.3.2.1 When testing a sample of a single-layer product in accordance with Method A, the workwear material, including seams, must meet the following requirements:
b) there should be no holes in any of the samples;
c) no melting, burning or melting residues should be observed on any of the samples;
d) the average value of the residual burning time should be< 2 с;
e) the average value of the residual smoldering time should be< 2 с.
Seam testing is carried out according to ISO 15025 Method A on three specimens containing the seam. The samples are positioned so that the seam is vertical along the center line of the sample and the burner flame falls directly on the seam. After exposure to flame, the seams must remain intact.
6.3.2.2 If the workwear consists of several layers, then samples of the package of materials, including seams, are tested by exposing both the outer material and the inner layer material to a flame to determine compliance with the requirements of 6.3.2.1. However, none of the layers of the bag should have holes, with the exception of the intermediate layer, which is not intended to provide protection from heat and flame, but is necessary to protect against other risks, such as liquid penetration.
6.3.2.3 All accessories (for example, contact tape, etc.) must be tested individually by exposure to a flame from the surface, and its location is determined by the design of the product in its fastened form, regardless of whether it is covered with layers of material or not. After testing, the fittings should function properly.
6.3.2.4 Chevrons, labels, reflective materials placed on the outer layer of workwear are tested together with the outer layer of the material. The dimensions of the test specimen shall comply with the requirements of ISO 15025. The top surface of the elements shall be exposed to flame. Chevrons, labels, and reflective materials must meet the same fire resistance requirements as the top material.
6.3.3 Testing according to ISO 15025, method B (coded A2)
6.3.3.1 When tested in accordance with ISO 15025 Method B, samples of single-layer workwear incorporating a finished edge shall meet the following requirements:
a) on none of the samples should the flame boundary reach the top or side edges;
b) no melting, burning or melting residues should be observed on any of the samples;
c) the average value of the residual combustion time should be< 2 с;
d) the average value of the residual smoldering time should be< 2 с.
According to ISO 15025, glow within a charred area without resumption of combustion is not counted as residual smoldering.
Seam testing is carried out according to method B of ISO 15025 on three specimens containing a connecting seam and a seamed edge. The samples should be positioned so that the seam is directed up the center line of the sample and the torch flame hits the seam directly. After exposure to flame, the seams must remain intact.
6.3.3.2 The edge of the sample must be processed in the same way as the edge of the finished product.
6.3.3.3 If the workwear is multi-layered, then samples of bags, including seams, with seam-treated edges are tested by applying a flame to the edge of the multi-layer bag. Samples must comply with the requirements of 6.3.3.1 of this standard.
6.4 Change of linear dimensions after cleaning 6.4.1 General
The requirements of this section regarding changes in linear dimensions after cleaning do not apply to products intended for disposable use, products that cannot be washed or dry cleaned, or leather products.
6.4.2 Change in linear dimensions after preparing samples according to 5.2.1
6.4.2.1 The change in linear dimensions of fabrics, nonwovens and coated materials is determined in accordance with ISO 5077. The change in linear dimensions should not exceed 3% in length and width.
6.4.22 The change in the linear dimensions of knitted fabrics, determined according to ISO 5077, should not exceed 5%. The assessment of changes in the linear dimensions of knitted fabrics is carried out after they are straightened on a flat surface.
6.5 Requirements for physical and mechanical properties 6.5.1 Breaking load
6.5.1.1 The breaking load of the outer layer, determined in accordance with ISO 13934-1, excluding leather and knitted fabrics, shall be not less than 300 N at warp and weft.
6.5.1.2 The breaking load of the outer layer of leather, determined in accordance with ISO 3376, shall be not less than 60 N in two perpendicular directions. The test sample is prepared in accordance with the requirements of Table 1 of ISO 3376.
6.5.2 Burst load
6.5.2.1 The tearing load of the outer layer, determined in accordance with ISO 13937-2, excluding leather and knitted fabrics, shall be not less than 15 N for warp and weft.
6.5.22 The tearing load of the outer layer of leather, determined in accordance with ISO 3377-1, shall be not less than 20 N in two directions perpendicular to the plane of the material.
6.5.3 Punching strength of knitted fabric
The strength of the knitted fabric used as the outer layer, determined according to ISO 13938-1, must be at least 200 kPa.
The breaking load of seams, determined according to ISO 13935-2, for seams of external material or seams of an outer product, for fabrics - not less than 225 N, for leather - not less than 110 N.
6.6 Resistance to water penetration (code W) (additional requirement)
If, in accordance with the intended use of the workwear, the manufacturer specifies requirements for resistance to water penetration, the suit must be tested and classified for both resistance to water penetration and resistance to water vapor, and must meet the following requirements:
a) resistance to water penetration is assessed and classified in accordance with the requirements of EN 343;
b) resistance to water vapor is assessed and classified in accordance with EN 343.
Workwear that meets the requirements of this paragraph must be marked in accordance with 8.4 of this standard.
6.7 Ergonomic requirements
The ergonomic characteristics of workwear that comply with this standard are assessed by carrying out experimental wear. Currently, international requirements for conducting experimental wear have not been approved, but an approximate methodology is included in Appendix D.
6.8 Requirements for fat content of leather
6.9 Safety requirements
None of the components of the workwear should have a harmful effect on the human body. This requirement must be confirmed by safety data sheets of individual materials and components used for the manufacture of workwear.
6.9.2 pH level
The pH level, determined according to ISO 3071 (for textiles) or ISO 4045 (for leather), should be between 3.5 and 9.5.
7 Requirements for heat transfer performance
7.1 General provisions
Workwear claimed to comply with this standard must meet at least one heat transfer requirement coded B, C, D, E or F in addition to the mandatory minimum requirements of clause 6 of this standard.
Application of the performance requirements in this section must be consistent with the intended use as stated by the clothing manufacturer.
7.2 Convective heat transfer (code B)
When tested in accordance with ISO 9151, single-layer or multi-layer garments and/or assemblies claiming to provide protection against convective heat transfer shall meet at least protection level B1 of Table 1. The required performance of this clause shall be selected in accordance with the intended use declared. manufacturer of workwear.
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Table1 - Protection levels: convective heat transfer test |
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7.3 Thermal radiation (code C)
When tested in accordance with Method B of ISO 6942 at a heat flux density of 20 kW/m2, single or multi-layer garments and/or garments claiming to provide radiation thermal protection shall meet at least protection level C1 of Table 2. Tests on metallized fabrics are carried out after preparation in accordance with the Appendix
- Appendix A (mandatory). Mechanical preparation of metallized materials Appendix B (informative). Apparel Design Principles Appendix C (informative). Predicting Burns Using Test Dummy Appendix D (informative). Checking the ergonomic properties of workwear Appendix E (for reference). Risk Assessment Appendix F (informative). Protection against thermal arc hazards Appendix G (informative). Measurement error Appendix YES (for reference). Information on the compliance of interstate standards with reference international standards
Interstate standard GOST ISO 11612-2014
"System of occupational safety standards. Clothing for protection from heat and flame. General requirements and performance characteristics"
(put into effect by order of the Federal Agency for Technical Regulation and Metrology dated October 31, 2014 N 1477-st)
Occupational safety standards system. Clothing for protection against heat and flame. General and performance requirements
Introduced for the first time
Preface
The goals, basic principles and basic procedure for carrying out work on interstate standardization are established by GOST 1.0-92 "Interstate standardization system. Basic provisions" and GOST 1.2-2009 "Interstate standardization system. Interstate standards, rules and recommendations for interstate standardization. Rules for development, adoption, application, renewal and cancellation"
Standard information
1 Prepared by the Technical Committee for Standardization of Personal Protective Equipment TK 320 "PPE" based on an authentic translation into Russian of the standard specified in paragraph 5
2 Introduced by the Federal Agency for Technical Regulation and Metrology
3 Adopted by the Interstate Council for Standardization, Metrology and Certification (protocol dated October 20, 2014 N 71-P)
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Short name of the country according to MK (ISO 3166) 004-97 |
Abbreviated name of the national standardization body |
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Ministry of Economy of the Republic of Armenia |
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Azerbaijan |
Azstandard |
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Belarus |
State Standard of the Republic of Belarus |
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Kyrgyzstan |
Kyrgyzstandard |
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Rosstandart |
Official copies of the international standard on the basis of which this interstate standard was prepared, the international standards to which references are given, are located in the Federal Information Fund of Technical Regulations and Standards.
Information on the compliance of interstate standards with reference international standards is given in additional appendix YES.
Official copies of the international standard on the basis of which this standard and the international standards to which references are given are prepared are available in the Federal Information Fund of Technical Regulations and Standards.
Degree of conformity - identical (IDT)
6 Introduced for the first time
1 area of use
This standard applies to special clothing (hereinafter referred to as workwear), as well as personal protective equipment for the head and legs - balaclavas, gaiters and shoe covers, designed to protect against short-term exposure to open flames, thermal radiation, convective heat, contact with hot objects, splashes of molten metal .
This standard does not apply to shields and personal respiratory protection equipment, protective clothing intended for firefighters and welders.
This standard uses normative references to the following standards:
ISO 3071:2005, Textiles - Determination of pH of aqueous extract
ISO 3376:2002, Leather. Physical and mechanical tests. Determination of tensile strength and percentage extension (Leather. Physical and mechanical tests. Determination of tensile strength and relative elongation)
ISO 3377-1:2002, Leather. Physical and mechanical tests. Determination of tear load. Part 1. Single edge tear (Leather. Physical and mechanical tests. Determination of tear load. Part 1. Tear along one edge)
ISO 4045:2008, Leather - Chemical tests - Determination of pH
ISO 4048:2008, Leather - Chemical tests - Determination of matter soluble in dichloromethane and free fatty acid content
ISO 5077:2007, Textiles - Determination of dimensional change in washing and drying
ISO 6942:2002, Protective clothing. Protection against heat and fire. Method of test: Evaluation of materials and material assemblies when exposed to a source of radiant heat (Heat- and fire-resistant protective clothing. Test methods. Evaluation of materials and combinations of materials exposed to thermal radiation from a source)
ISO 7000:2004, Graphical symbols for use on equipment - Index and synopsis
ISO 9151:1995, Protective clothing against heat and flame - Determination of heat transmission on exposure to flame
ISO 9185:2007, Protective clothing - Assessment of resistance of materials to molten metal splash
ISO/TR 11610:2004, Protective clothing - Vocabulary
ISO 12127:1996, Clothing for protection against heat and flame - Determination of contact heat transmission through protective clothing or constituent materials
ISO 13506:2008, Protective clothing against heat and flame - Test method for complete garments - Prediction of burn injury using an instrumented manikin
ISO 13688:1998, Protective clothing - General requirements
ISO 13934-1:1999, Textiles - Tensile properties of fabrics - Part 1: Determination of maximum force and elongation at maximum force using the strip method strip method)
ISO 13935-2:1999, Textiles - Seam tensile properties of fabrics and made-up textile articles - Part 2: Determination of maximum force to seam rupture using the grab method. 2. Determination of the maximum force to break a seam using the gripping method)
ISO 13937-2:2000, Textiles. Tear properties of fabrics. Part 2. Determination of tear force of trouser-shaped test specimens (Single tear method)
ISO 13938-1:1999, Textiles - Bursting properties of fabrics - Part 1: Hydraulic method for determination of bursting strength and bursting distension
ISO 15025:2000, Protective clothing - Protection against heat and flame - Method of test for limited flame spread
ISO 17493:2000, Clothing and equipment for protection against heat. Test method for convective heat resistance using a hot air circulating oven
EN 343:2003, Protective clothing. Protection against rain (Protective clothing. Protection from rain)
3 Terms and definitions
The following terms with corresponding definitions are used in this standard:
3.1 aging: Change in the performance characteristics of a product during its use or storage.
NOTE Aging is caused by a combination of several factors, such as:
Cleaning, repair or disinfection processes;
Exposure to visible and/or ultraviolet radiation;
Exposure to high or low temperatures, temperature changes;
Exposure to chemical factors, incl. humidity;
Mechanical impact: abrasion, bending, pressure, stretching;
Exposure to pollution: dirt, oil, splashes of molten metal, etc.;
3.2 cleaning: The process of bringing workwear into a hygienic condition suitable for use by removing contaminants.
Note - A cleaning cycle is considered to be washing followed by drying, dry cleaning with ironing or other treatment.
3.3 clothing assembly: A set of clothing items used simultaneously.
3.5 package of materials(component assembly): The collection of all materials used in a multilayer product, arranged in the same sequence as in the finished product.
3.6 conditioning conditioning: Holding samples under standard conditions of temperature and relative humidity for a specified period of time.
3.7 gaiter: Removable personal protective equipment for the legs below the knee, which may partially cover the upper part of the shoe.
3.8 product (garment): A separate piece of workwear consisting of one or more layers of material.
NOTE: In all clauses of this standard where reference is made to an item of clothing or clothing, balaclavas, gaiters and shoe covers should also be taken into account.
3.9 accessories (hardware): Auxiliary parts, parts or additional products necessary for the manufacture of workwear (metal and plastic buttons, zippers, etc.).
3.10 hood: Personal protective equipment for the head and neck made of flexible material.
3.11 innermost lining: The inner, body-facing layer of the workwear materials package.
NOTE If the body-facing layer consists of more than one material, then all of them are considered to be the inner layer.
3.12 intermediate layer(Interlining): Any layer of a workwear material package located between the outer layer and the inner layer.
3.13 material: Flexible materials from which workwear can be made.
3.14 outer material: The outer layer of a package of workwear materials.
3.15 overboots: Single-layer or multi-layer product that covers shoes and protects them from heat and/or flame.
Note - Some types of shoe covers may also protect part of the leg and ankle.
3.16 patch pocket(patch pocket): A pocket stitched on the outside of workwear.
3.17 pre-treatment standard method of preparing test specimens
Note - Preparation may include a certain number of cleaning cycles, mechanical, thermal or any other influence. The preparation ends with conditioning.
3.18 seam: A permanent connection by any means between two or more parts of material.
3.18.1 main seams: Seams connecting parts of clothing into a single whole.
3.18.2 overlapping seam: A seam formed when one part is stitched onto another with an open or closed cut.
4 Design of workwear
4.1 General provisions
General requirements for protective clothing not covered by this standard shall be in accordance with ISO 13688. If multiple items of clothing are required to be used at the same time to meet the requirements of this standard, each item shall be appropriately marked to indicate that the complete set must be used.
4.2 Dimensions
4.2.1 General
Clothing sizes must comply with ISO 13688.
4.2.2 Types of workwear
Clothing to protect against heat and flames should completely cover the upper and lower body, neck, arms and legs. Overalls may consist of:
a) one item: overalls;
b) a two-piece item consisting of a jacket and trousers (overalls).
The jacket must cover the top of the trousers/overalls by at least 20 cm from the waist when performing all expected work operations and movements.
The compliance of clothing with this requirement is checked visually, as well as by measuring the amount of overlap in all positions and during any movements performed by the user during work operations in clothing of his size.
4.2.3 Protective clothing providing additional protection
Protection from heat and flames of certain parts of the body may be provided by additional products not specified in 4.2.2. Workwear that provides additional protection includes, for example, balaclavas, capes, sleeves, aprons and gaiters. The design of this workwear provides for joint use with the products specified in 4.2.2.
Performance tests of the protective properties of protective clothing that provide additional protection from heat and flame are carried out using a complete set of clothing.
Additional products, such as balaclavas, capes, sleeves, aprons and gaiters must completely cover the parts of the body they are intended to protect, be used in conjunction with workwear of the appropriate size and comply with the requirements of this standard.
The compliance of protective clothing with this requirement is checked visually, including assessing the fit and taking measurements, provided that the user has worn all the necessary additional products with a set of protective clothing of the appropriate size.
4.3 Pockets
If the design of clothing provides for the presence of pockets, then they must be made of material that meets the requirements of 4.5.
4.4 Fittings
The fittings located on the outer layer of the workwear must be insulated from the inner surface of the product.
Compliance with this requirement is checked visually.
4.5 Additional requirements for clothing to protect against splashes of molten metal
Overalls designed to protect against splashes of molten metal, meeting the requirements defined by codes D and E, must have the following design features:
a) the sleeves of jackets and overalls, the lower part of trousers, overalls and bib overalls must not have cuffs;
b) external pockets of jackets, trousers, overalls, bib overalls, with the exception of side pockets located below the waist, the entrance to which has a deviation of no more than 10° from the side seam, must be closed with a flap. To exclude the possibility of tucking the flap into the pocket, the flap should be 20 mm wider than the entrance to the pocket;
c) patch pockets must be made of materials that have the same code designations (A to F) and the same level of protection as the materials of the main product;
d) overlay seams on the outside of the garment should be directed downward and topstitched;
e) fasteners on the front side of products must be closed with flaps. The maximum distance between buttonholes is 150 mm. If the design of the clothing requires the use of zippers, then use zippers with a slider lock in the closed position. Sleeve cuffs may have fasteners to adjust their width. The clasp and the folds it creates should be located on the inside of the cuff. The collar should be buttoned. The trousers may have vents with fasteners in the side seams. The slots and fasteners must be covered with a protective valve.
Compliance of workwear with the requirements , , and e) is checked visually. Compliance c) is checked visually and by testing.
NOTE Guidance on the design of clothing to protect against molten metal splashes is given in Appendix B.
5 Selection and preparation of test samples
5.1 Sampling
The number and dimensions of samples of materials or finished products provided for various tests are determined in accordance with the requirements of the relevant testing standards.
Samples of materials must be prepared in the same configuration as they are used in finished products. Samples may be cut from finished garments or may be selected from materials or packages of materials in the same configuration as the finished garment.
5.2 Sample preparation
5.2.1 Sample preparation by cleaning
Before testing in accordance with clauses 6 and with the exception of 6.8, 6.9.2 and 6.9.3, test specimens shall be prepared by cleaning if cleaning is permitted in the product instruction manual. In addition, according to 6.3, the limited flame propagation test is carried out before and after sample preparation, if cleaning is permitted.
Cleaning is carried out according to the manufacturer's instructions, based on standardized methods. If the number of cleaning cycles is not determined, then five cleaning cycles are carried out. This should be reflected in the information provided by the manufacturer.
NOTE Cleaning instructions provided by the manufacturer typically describe one or more ISO 6330, ISO 15797 or equivalent standardized cleaning processes.
5.2.3 Aging
Before testing according to 6.3, samples are subjected to the maximum number of cleanings specified by the manufacturer.
5.3 Conditioning
Before testing, samples of all types of materials, with the exception of leather, are kept in standard atmospheric conditions for at least 24 hours at a temperature of (202) ° C and relative humidity (655)%. Leather samples are kept under the same conditions for at least 48 hours. Testing of the sample begins no later than 5 minutes from the moment the sample is removed from the environment where conditioning was carried out.
6 General requirements
6.1 General provisions
6.2 Temperature resistance
6.2.1 Heat resistance at (1805)°C
When tested in accordance with ISO 17493 at a temperature
(1805)°C, all materials and accessories used in the product and/or set of products must not ignite or melt, and also have shrinkage of more than 5%.
6.2.2 Heat resistance at (2605)°C (additional requirement)
If the material of a single-layer product or the lining of a multi-layer product comes into contact with human skin when worn, the material is tested in accordance with ISO 17493 at a temperature of (2605) °C. The material should not ignite or melt, nor should it shrink more than 10%. In this case, the material must comply with the requirements of 6.2.1.
Note - Heat shrinking can potentially reduce the level of protection against thermal hazards of clothing because the insulating air gap between clothing and body is reduced. Therefore, it is necessary to avoid shrinking in protective clothing against heat and flame, especially in cases where there is a potential danger of exposure to heat and flame, and there is a risk of significant percentage damage to clothing.
6.3 Restricted flame spread (coded A1 and/or A2)
6.3.1 General
Testing of materials and seams is carried out in accordance with test method A (code A1) or test method B (code A2) of ISO 15025 or both methods, depending on the types of risks arising when using the workwear for its intended purpose. The test is carried out on the samples both before and after they have been prepared in accordance with Clause 5.
Fittings or materials that are used on the outer layer of clothing for protection against heat and flame are tested in accordance with Procedure A.
6.3.2 Testing according to ISO 15025, method A (coded A1)
6.3.2.1 When testing a sample of a single-layer product in accordance with Method A, the workwear material, including seams, must meet the following requirements:
b) there should be no holes in any of the samples;
c) no melting, burning or melting residues should be observed on any of the samples;
d) the average residual burning time should be 2 s;
f) the average value of the residual smoldering time should be 2 s.
Seam testing is carried out according to ISO 15025 Method A on three specimens containing the seam. The samples are positioned so that the seam is vertical along the center line of the sample and the burner flame falls directly on the seam. After exposure to flame, the seams must remain intact.
6.3.2.2 If the workwear consists of several layers, then samples of the package of materials, including seams, are tested by exposing both the outer material and the inner layer material to a flame to determine compliance with the requirements of 6.3.2.1. However, none of the layers of the bag should have holes, with the exception of the intermediate layer, which is not intended to provide protection from heat and flame, but is necessary to protect against other risks, such as liquid penetration.
6.3.2.3 All accessories (for example, contact tape, etc.) must be tested individually by exposure to a surface flame, and their location is determined by the design of the product in its fastened form, regardless of whether it is covered with layers of material or not. After testing, the fittings should function properly.
6.3.2.4 Chevrons, labels, reflective materials placed on the outer layer of workwear are tested together with the outer layer of the material. The dimensions of the test specimen shall comply with the requirements of ISO 15025. The top surface of the elements shall be exposed to flame. Chevrons, labels, and reflective materials must meet the same fire resistance requirements as the top material.
6.3.3 Testing according to ISO 15025, method B (coded A2)
6.3.3.1 When tested in accordance with ISO 15025 Method B, samples of single-layer workwear incorporating a finished edge shall meet the following requirements:
a) on none of the samples should the flame boundary reach the top or side edges;
b) no melting, burning or melting residues should be observed on any of the samples;
c) the average residual burning time should be 2 s;
d) the average residual smoldering time should be 2 s.
According to ISO 15025, glow within a charred area without resumption of combustion is not counted as residual smoldering.
Seam testing is carried out according to method B of ISO 15025 on three specimens containing a connecting seam and a seamed edge. The samples should be positioned so that the seam is directed up the center line of the sample and the torch flame hits the seam directly. After exposure to flame, the seams must remain intact.
6.3.3.2 The edge of the sample must be processed in the same way as the edge of the finished product.
6.3.3.3 If the workwear is multi-layered, then samples of bags, including seams, with seam-treated edges are tested by applying a flame to the edge of the multi-layer bag. Samples must comply with the requirements of 6.3.3.1 of this standard.
6.4 Change of linear dimensions after cleaning
6.4.1 General
The requirements of this section regarding changes in linear dimensions after cleaning do not apply to products intended for disposable use, products that cannot be washed or dry cleaned, or leather products.
6.4.2 Change in linear dimensions after preparing samples according to 5.2.1
6.4.2.1 The change in linear dimensions of fabrics, nonwovens and coated materials is determined in accordance with ISO 5077. The change in linear dimensions should not exceed 3% in length and width.
6.4.2.2 The change in the linear dimensions of knitted fabrics, determined according to ISO 5077, should not exceed 5%. The assessment of changes in the linear dimensions of knitted fabrics is carried out after they are straightened on a flat surface.
6.5 Requirements for physical and mechanical properties
6.5.1.1 The breaking load of the outer layer, determined in accordance with ISO 13934-1, excluding leather and knitted fabrics, shall be not less than 300 N at warp and weft.
6.5.1.2 The breaking load of the outer layer of leather, determined in accordance with ISO 3376, shall be not less than 60 N in two perpendicular directions. The test sample is prepared in accordance with the requirements of Table 1 of ISO 3376.
6.5.2.1 The tearing load of the outer layer, determined in accordance with ISO 13937-2, excluding leather and knitted fabrics, shall be not less than 15 N for warp and weft.
6.5.2.2 The tearing load of the outer layer of leather, determined in accordance with ISO 3377-1, shall be not less than 20 N in two directions perpendicular to the plane of the material.
6.5.3 Punching strength of knitted fabric
The strength of the knitted fabric used as the outer layer, determined according to ISO 13938-1, must be at least 200 kPa.
The breaking load of seams, determined according to ISO 13935-2, for seams of external material or seams of an outer product, for fabrics - not less than 225 N, for leather - not less than 110 N.
6.6 Resistance to water penetration (code W) (additional requirement)
If, in accordance with the intended use of the workwear, the manufacturer specifies requirements for resistance to water penetration, the suit must be tested and classified for both resistance to water penetration and resistance to water vapor, and must meet the following requirements:
a) resistance to water penetration is assessed and classified in accordance with the requirements of EN 343;
b) resistance to water vapor is assessed and classified in accordance with EN 343.
Workwear that meets the requirements of this paragraph must be marked in accordance with 8.4 of this standard.
6.7 Ergonomic requirements
The ergonomic characteristics of workwear that comply with this standard are assessed by carrying out experimental wear. Currently, international requirements for conducting experimental wear have not been approved, but an approximate methodology is included in Appendix D.
6.8 Requirements for fat content of leather
6.9 Safety requirements
6.9.1 Impurity content
None of the components of the workwear should have a harmful effect on the human body. This requirement must be confirmed by safety data sheets of individual materials and components used for the manufacture of workwear.
6.9.2 pH level
The pH level, determined according to ISO 3071 (for textiles) or ISO 4045 (for leather), should be between 3.5 and 9.5.
6.9.3 Chromium (VI) content
7 Requirements for heat transfer performance
7.1 General provisions
Workwear declared to comply with this standard must meet at least one heat transfer requirement coded B, C, D, E or F in addition to the mandatory minimum requirements of clause 6 of this standard.
Application of the performance requirements in this section must be consistent with the intended use as stated by the clothing manufacturer.
7.2 Convective heat transfer (code B)
When tested in accordance with ISO 9151, single-layer or multi-layer garments and/or assemblies claiming to provide protection against convective heat transfer shall meet at least protection level B1 of Table 1. The required performance of this clause shall be selected in accordance with the intended use declared. manufacturer of workwear.
Table 1 - Protection levels: convective heat transfer test
|
Protection level |
Heat transfer index HTI 24, s |
|
|
* Convective heat transfer index determined according to ISO 9151. |
||
7.3 Thermal radiation (code C)
When tested in accordance with ISO 6942 Method B at a heat flux density of 20, single or multi-layer garments and/or garments claiming to provide radiation thermal protection shall meet at least protection level C1 of Table 2. Tests on metallized fabrics carried out after preparation in accordance with Appendix A. The thermal radiation transfer rate is taken to be the minimum value obtained from testing the number of samples specified in ISO 6942, rounded to the nearest 0.1 s.
Table 2 - Protection levels: thermal radiation test
|
Protection level |
Heat transfer index RHTI 24 s |
|
|
* Thermal radiation transmission index determined according to ISO 6942. |
||
7.4 Molten aluminum splash (code D)
When tested in accordance with ISO 9185 using molten aluminum, single or multi-layer garments and/or garments claimed to provide protection against molten aluminum splash shall meet at least protection level D1 of Table 3.
Notes
NOTE 2 Acceptable performance obtained from testing in accordance with ISO 9185 using molten aluminum generally provides a basis for determining the suitability of the material for protection against molten aluminum bronze and molten minerals.
Table 3 - Levels of protection: molten aluminum splash
|
Protection level |
Mass of molten aluminum splash, g |
|
7.5 Molten Iron Splash (Code E)
When tested in accordance with ISO 9185 using molten iron, single or multi-layer articles and/or garments claiming to provide protection against molten iron splash shall meet at least protection level E1 of Table 4.
Notes
1 Chevrons, labels, fittings, contact tape, reflective materials, etc. located on the product can impair the protective performance of clothing and/or clothing sets.
NOTE 2 Acceptable performance obtained from testing in accordance with ISO 9185 using molten iron generally provides a basis for determining the suitability of a material for protection against molten copper, phosphor bronze and brass.
Table 4 - Levels of protection: splash of molten iron
|
Protection level |
Mass of molten iron splash, g When tested in accordance with ISO 12127 at 250°C, single or multi-layer garments and/or garments claiming to provide protection against contact heat transfer shall meet at least protection level F1 of Table 5. The threshold time shall be taken as the minimum value , obtained by testing the number of samples specified in ISO 12127, rounded to the nearest 0.1 s. Table 5 - Protection levels: contact heat transfer
7.7 Protection against thermal risks from electric arcs (additional requirement) Note - The practice of testing according to ISO 13506 shows that obtaining the most complete and reliable information about the protective properties of single-layer and multi-layer sets of workwear ensures testing at an incident energy value of 84 with a minimum exposure time of 4 s. When testing multi-layer clothing sets, it may be necessary to increase the flame exposure time to 8 s. Additional research is needed to determine a consistent correlation between test conditions and actual flame exposure. For reasons depending on the test methodology, the reproducibility of test results decreases when the flame exposure time is less than 3 s. In this regard, the flame exposure time cannot be less than 3 s. 8.4 If the protective clothing has been tested and meets the requirements of 6.6, then the pictogram must contain the code designation “W” followed by the obtained level of protection in digital terms. According to EN 343, there are three levels of protection in terms of resistance to water penetration and resistance to water vapor. The pictogram of protective clothing that meets the requirements of 6.6 must have two digital symbols after the code “W”, the first of which indicates the level of protection in terms of resistance to water penetration, the second - in terms of resistance to water vapor. For example, if workwear has level 2 protection in terms of resistance to water penetration and level 3 protection in terms of resistance to water vapor, its pictogram should contain the code designation “W23”. 8.5 If compliance with the requirements of this standard is achieved only through the simultaneous use of several items of clothing, each of them must be labeled with instructions on compliance with completeness. 8.6 The marking of disposable workwear must contain the warning “For single use”. 9 Operating instructions 9.1 Protective clothing against heat and flame is accompanied by information in the official language(s) of the country of destination. 9.2 The instruction manual shall comply with the requirements of ISO 13688. It shall contain detailed information on the durability of the protective properties of the product, especially resistance to cleaning. If restoration of protective properties is possible by applying a finish, then indicate the maximum number of cleaning cycles after which application of a finish is required to restore the protective properties. 9.3 The instruction manual must contain information on items of protective clothing, the use of which will provide protection in accordance with the requirements of this standard. 7.5 of this standard, must contain instructions on actions in the event of a splash on clothing. If a situation arises when a splash gets on your clothing, it is recommended to leave the workplace and take off your overalls. The manufacturer must indicate that there is a risk of burns if molten metal splashes onto clothing that comes into contact with human skin. Bibliography
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GOST 11612.0-81
Photomultipliers. General requirements for measuring electrical and lighting parameters
| Standard designation: | GOST 11612.0-81 |
| Standard Status: | active |
| Russian name: | Photomultipliers. General requirements for measuring electrical and lighting parameters |
| English name: | Photomultipliers. Measuring methods of the electric and lighttechnics parameters. |
| Effective date: | 01.07.1982 |
| Area and conditions of application: | This standard applies to photomultipliers with more than one multiplication stage and establishes general requirements for measurements. |
| Instead: | GOST 11612.0-75 |
| List of changes: | No. 1 dated --1984-07-01 (reg. --1984-02-23) “Validity period extended” No. 2 dated --1987-11-01 (reg. --1987-04-17) “Validity period extended” No. 3 dated --1988-11-01 (reg. --1988-04-27) “Validity period extended” |
| c=&f2=3&f1=II001&l=">OKS All-Russian Classifier of Standards |
|
Interstate standard GOST ISO 11612-2014
"SYSTEM OF OCCUPATIONAL SAFETY STANDARDS. CLOTHING FOR PROTECTION AGAINST HEAT AND FLAMES. GENERAL REQUIREMENTS AND PERFORMANCE CHARACTERISTICS"
(put into effect by order of the Federal Agency for Technical Regulation and Metrology dated October 31, 2014 N 1477-st)
Occupational safety standards system. Clothing for protection against heat and flame. General and performance requirements
Introduced for the first time
Preface
The goals, basic principles and basic procedure for carrying out work on interstate standardization are established by GOST 1.0-92 "Interstate standardization system. Basic provisions" and GOST 1.2-2009 "Interstate standardization system. Interstate standards, rules and recommendations for interstate standardization. Rules for development, adoption, application, renewal and cancellation"
Standard information
1 Prepared by the Technical Committee for Standardization of Personal Protective Equipment TK 320 "PPE" based on an authentic translation into Russian of the standard specified in paragraph 5
2 Introduced by the Federal Agency for Technical Regulation and Metrology
3 Adopted by the Interstate Council for Standardization, Metrology and Certification (protocol dated October 20, 2014 N 71-P)
4 By Order of the Federal Agency for Technical Regulation and Metrology dated October 31, 2014 N 1477-st, the interstate standard GOST ISO 11612-2014 was put into effect as a national standard of the Russian Federation on December 1, 2015.
5 This standard is identical to the international standard ISO 11612:2008 Protective clothing - Clothing to protect against heat and flame.
The international standard was developed by the technical committee for standardization ISO/TS 94 "Personal protective equipment. Protective clothing and equipment" of the International Organization for Standardization (ISO).
Translation from English (en).
The name of this standard has been changed relative to the name of the specified standard to bring it into compliance with GOST 1.5-2001 (clause 3.6).
Official copies of the international standard on the basis of which this interstate standard was prepared, the international standards to which references are given, are located in the Federal Information Fund of Technical Regulations and Standards.
Information on the compliance of interstate standards with reference international standards is given in Additional Appendix DA.
Official copies of the international standard on the basis of which this standard and the international standards to which references are given are prepared are available in the Federal Information Fund of Technical Regulations and Standards.
Degree of conformity - identical (IDT)
6 Introduced for the first time
1 area of use
This standard applies to special clothing (hereinafter referred to as workwear), as well as personal protective equipment for the head and legs - balaclavas, gaiters and shoe covers, designed to protect against short-term exposure to open flames, thermal radiation, convective heat, contact with hot objects, splashes of molten metal .
This standard does not apply to shields and personal respiratory protection equipment, protective clothing intended for firefighters and welders.
2 Normative references
This standard uses normative references to the following standards:
ISO 3071:2005, Textiles - Determination of pH of aqueous extract
ISO 3376:2002, Leather. Physical and mechanical tests. Determination of tensile strength and percentage extension (Leather. Physical and mechanical tests. Determination of tensile strength and relative elongation)
ISO 3377-1:2002, Leather. Physical and mechanical tests. Determination of tear load. Part 1. Single edge tear (Leather. Physical and mechanical tests. Determination of tear load. Part 1. Single edge tear)
ISO 4045:2008, Leather - Chemical tests - Determination of pH
ISO 4048:2008, Leather - Chemical tests - Determination of matter soluble in dichloromethane and free fatty acid content
ISO 5077:2007, Textiles - Determination of dimensional change in washing and drying
ISO 6942:2002, Protective clothing. Protection against heat and fire. Method of test: Evaluation of materials and material assemblies when exposed to a source of radiant heat
ISO 7000:2004, Graphical symbols for use on equipment - Index and synopsis
ISO 9151:1995, Protective clothing against heat and flame - Determination of heat transmission on exposure to flame
ISO 9185:2007, Protective clothing - Assessment of resistance of materials to molten metal splash
ISO/TR 11610:2004, Protective clothing - Vocabulary
ISO 12127:1996, Clothing for protection against heat and flame - Determination of contact heat transmission through protective clothing or constituent materials
ISO 13506:2008, Protective clothing against heat and flame - Test method for complete garments - Prediction of burn injury using an instrumented manikin
ISO 13688:1998, Protective clothing - General requirements
ISO 13934-1:1999, Textiles - Tensile properties of fabrics - Part 1: Determination of maximum force and elongation at maximum force using the strip method strip method)
ISO 13935-2:1999, Textiles - Seam tensile properties of fabrics and made-up textile articles - Part 2: Determination of maximum force to seam rupture using the grab method. 2. Determination of the maximum force to break a seam using the gripping method)
ISO 13937-2:2000, Textiles. Tear properties of fabrics. Part 2. Determination of tear force of trouser-shaped test specimens (Single tear method)
ISO 13938-1:1999, Textiles - Bursting properties of fabrics - Part 1: Hydraulic method for determination of bursting strength and bursting distension
ISO 15025:2000, Protective clothing - Protection against heat and flame - Method of test for limited flame spread
ISO 17493:2000, Clothing and equipment for protection against heat. Test method for convective heat resistance using a hot air circulating oven
EN 343:2003, Protective clothing. Protection against rain (Protective clothing. Protection from rain)
3 Terms and definitions
The following terms with corresponding definitions are used in this standard:
3.1 aging: Change in the performance characteristics of a product during its use or storage.
NOTE Aging is caused by a combination of several factors, such as:
Cleaning, repair or disinfection processes;
Exposure to visible and/or ultraviolet radiation;
Exposure to high or low temperatures, temperature changes;
Exposure to chemical factors, incl. humidity;
Mechanical impact: abrasion, bending, pressure, stretching;
Exposure to pollution: dirt, oil, splashes of molten metal, etc.;
3.2 cleaning: The process of bringing workwear into a hygienic condition suitable for use by removing contaminants.
Note - A cleaning cycle is considered to be washing followed by drying, dry cleaning with ironing or other treatment.
3.3 clothing assembly: A set of clothing items used simultaneously.
3.4 clothing layer (component): Any of the materials used in a material package (3.5).
3.5 component assembly: The collection of all materials used in a multilayer product, arranged in the same sequence as in the finished product.
3.6 conditioning: Holding samples under standard conditions of temperature and relative humidity for a specified period of time.
3.7 gaiter: Removable personal protective equipment for the legs below the knee, which may partially cover the upper part of the shoe.
3.8 product (garment): A separate piece of workwear consisting of one or more layers of material.
NOTE: In all clauses of this standard where reference is made to an item of clothing or clothing, balaclavas, gaiters and shoe covers should also be taken into account.
3.9 accessories (hardware): Auxiliary parts, parts or additional products necessary for the manufacture of workwear (metal and plastic buttons, zippers, etc.).
3.10 hood: Personal protective equipment for the head and neck made of flexible material.
3.11 innermost lining: The inner, body-facing layer of the workwear materials package.
NOTE If the body-facing layer consists of more than one material, then all of them are considered to be the inner layer.
3.12 Interlining: Any layer of a package of workwear materials located between the outer layer and the inner layer.
3.13 material: Flexible materials from which workwear can be made.
3.14 outer material: The outer layer of a package of workwear materials.
3.15 overboots: Single-layer or multi-layer product that covers shoes and protects them from heat and/or flame.
Note - Some types of shoe covers may also protect part of the leg and ankle.
3.16 patch pocket: A pocket stitched on the outside of the workwear.
3.17 pre-treatment standard method of preparing test specimens
Note - Preparation may include a certain number of cleaning cycles, mechanical, thermal or any other influence. The preparation ends with conditioning.
3.18 seam: A permanent connection by any means between two or more parts of material.
3.18.1 main seams: Seams connecting parts of clothing into a single whole.
3.18.2 overlapping seam: A seam formed when one part is stitched onto another with an open or closed cut.
4 Design of workwear
4.1 General provisions
General requirements for protective clothing not covered by this standard shall be in accordance with ISO 13688. If multiple items of clothing are required to be used at the same time to meet the requirements of this standard, each item shall be appropriately marked to indicate that the complete set must be used.
4.2 Dimensions
4.2.1 General
Clothing sizes must comply with ISO 13688.
4.2.2 Types of workwear
Clothing to protect against heat and flames should completely cover the upper and lower body, neck, arms and legs. Overalls may consist of:
a) one item: overalls;
b) a two-piece item consisting of a jacket and trousers (overalls).
The jacket must cover the top of the trousers/overalls by at least 20 cm from the waist when performing all expected work operations and movements.
The compliance of clothing with this requirement is checked visually, as well as by measuring the amount of overlap in all positions and during any movements performed by the user during work operations in clothing of his size.
4.2.3 Protective clothing providing additional protection
Protection from heat and flames of certain parts of the body may be provided by additional products not specified in 4.2.2. Workwear that provides additional protection includes, for example, balaclavas, capes, sleeves, aprons and gaiters. The design of this workwear allows for joint use with the products specified in 4.2.2.
Performance tests of the protective properties of protective clothing that provide additional protection from heat and flame are carried out using a complete set of clothing.
Additional products, such as balaclavas, capes, sleeves, aprons and gaiters must completely cover the parts of the body they are intended to protect, be used in conjunction with workwear of the appropriate size and comply with the requirements of this standard.
The compliance of protective clothing with this requirement is checked visually, including assessing the fit and taking measurements, provided that the user has worn all the necessary additional products with a set of protective clothing of the appropriate size.
4.3 Pockets
If the design of clothing provides for the presence of pockets, then they must be made of material that meets the requirements of 4.5.
4.4 Fittings
The fittings located on the outer layer of the workwear must be insulated from the inner surface of the product.
Compliance with this requirement is checked visually.
4.5 Additional requirements for clothing to protect against splashes of molten metal
Overalls designed to protect against splashes of molten metal, meeting the requirements defined by codes D and E, must have the following design features:
a) the sleeves of jackets and overalls, the lower part of trousers, overalls and bib overalls must not have cuffs;
b) external pockets of jackets, trousers, overalls, bib overalls, with the exception of side pockets located below the waist, the entrance to which has a deviation of no more than 10° from the side seam, must be closed with a flap. To exclude the possibility of tucking the flap into the pocket, the flap should be 20 mm wider than the entrance to the pocket;
c) patch pockets must be made of materials that have the same code designations (A to F) and the same level of protection as the materials of the main product;
d) overlay seams on the outside of the garment should be directed downward and topstitched;
e) fasteners on the front side of products must be closed with flaps. The maximum distance between buttonholes is 150 mm. If the design of the clothing requires the use of zippers, then use zippers with a slider lock in the closed position. Sleeve cuffs may have fasteners to adjust their width. The clasp and the folds it creates should be located on the inside of the cuff. The collar should be buttoned. The trousers may have vents with fasteners in the side seams. The slots and fasteners must be covered with a protective valve.
Compliance of protective clothing with requirements a), b), d) and e) is checked visually. Compliance c) is checked visually and by testing.
NOTE Guidance on the design of clothing to protect against molten metal splashes is given in Annex B.
5 Selection and preparation of test samples
5.1 Sampling
The number and dimensions of samples of materials or finished products provided for various tests are determined in accordance with the requirements of the relevant testing standards.
Samples of materials must be prepared in the same configuration as they are used in finished products. Samples may be cut from finished garments or may be selected from materials or packages of materials in the same configuration as the finished garment.
5.2 Sample preparation
5.2.1 Sample preparation by cleaning
Before testing in accordance with clauses 6 and 7, except 6.8, 6.9.2 and 6.9.3, test specimens shall be prepared by cleaning, if cleaning is permitted in the product manual. In addition, according to 6.3, the limited flame spread test is carried out before and after sample preparation, if cleaning is permitted.
Cleaning is carried out according to the manufacturer's instructions, based on standardized methods. If the number of cleaning cycles is not determined, then five cleaning cycles are carried out. This should be reflected in the information provided by the manufacturer.
NOTE Cleaning instructions provided by the manufacturer typically describe one or more ISO 6330, ISO 15797 or equivalent standardized cleaning processes.
Tests according to 6.8 and 6.9 are carried out on new material (in the condition in which it was received).
NOTE: Leather and metallized materials should not normally be prepared by cleaning because... The manufacturer's instructions usually indicate that cleaning such materials is not permitted.
5.2.2 Mechanical sample preparation
Before testing to determine thermal radiation in accordance with 7.3, metallized materials must undergo mechanical preparation in accordance with Appendix A.
5.2.3 Aging
Before testing according to 6.3, the samples are subjected to the maximum number of cleanings specified by the manufacturer.
5.3 Conditioning
Before testing, samples of all types of materials, with the exception of leather, are kept in standard atmospheric conditions for at least 24 hours at a temperature of (20±2)°C and relative humidity (65±5)%. Leather samples are kept under the same conditions for at least 48 hours. Testing of the sample begins no later than 5 minutes from the moment the sample is removed from the environment where conditioning was carried out.
6 General requirements
6.1 General provisions
Workwear declared to comply with this standard must meet the requirements of Section 6, with the exception of the requirements of 6.2.2 and 6.6, which are additional, as well as one or more requirements of Section 7. The marking of such products is carried out in accordance with the requirements of Section 8.
6.2 Temperature resistance
6.2.1 Heat resistance at a temperature of (180±5)°C
When tested in accordance with ISO 17493 at a temperature
(180±5)°C, all materials and accessories used in the product and/or set of products must not ignite or melt, and also have shrinkage of more than 5%.
6.2.2 Heat resistance at a temperature of (260±5)°C (additional requirement)
If the material of a single-layer product or the lining of a multi-layer product comes into contact with human skin when worn, the material is tested in accordance with ISO 17493 at a temperature of (260 ± 5) ° C. The material should not ignite or melt, nor should it shrink more than 10%. In this case, the material must comply with the requirements of 6.2.1.
Note - Heat shrinking can potentially reduce the level of protection against thermal hazards of clothing because the insulating air gap between clothing and body is reduced. Therefore, it is necessary to avoid shrinking in protective clothing against heat and flame, especially in cases where there is a potential danger of exposure to heat and flame, and there is a risk of significant percentage damage to clothing.
6.3 Restricted flame spread (coded A1 and/or A2)
6.3.1 General
Testing of materials and seams is carried out in accordance with test method A (code A1) or test method B (code A2) of ISO 15025 or both methods, depending on the types of risks arising when using the workwear for its intended purpose. The test is carried out on samples both before and after they have been prepared in accordance with clause 5.
Fittings or materials that are used on the outer layer of clothing for protection against heat and flame are tested in accordance with Procedure A.
6.3.2 Testing according to ISO 15025, method A (coded A1)
6.3.2.1 When testing a sample of a single-layer product in accordance with Method A, the workwear material, including seams, must meet the following requirements:
b) there should be no holes in any of the samples;
c) no melting, burning or melting residues should be observed on any of the samples;
d) the average residual burning time should be ≤2 s;
e) the average value of the residual smoldering time should be ≤2 s.
Seam testing is carried out according to ISO 15025 Method A on three specimens containing the seam. The samples are positioned so that the seam is vertical along the center line of the sample and the burner flame falls directly on the seam. After exposure to flame, the seams must remain intact.
6.3.2.2 If the workwear consists of several layers, then samples of the package of materials, including seams, are tested by exposing both the outer material and the inner layer material to a flame to determine compliance with the requirements of 6.3.2.1. However, none of the layers of the bag should have holes, with the exception of the intermediate layer, which is not intended to provide protection from heat and flame, but is necessary to protect against other risks, such as liquid penetration.
6.3.2.3 All accessories (for example, contact tape, etc.) must be tested individually by exposure to a surface flame, and their location is determined by the design of the product in its fastened form, regardless of whether it is covered with layers of material or not. After testing, the fittings should function properly.
6.3.2.4 Chevrons, labels, reflective materials placed on the outer layer of workwear are tested together with the outer layer of the material. The dimensions of the test specimen shall comply with the requirements of ISO 15025. The top surface of the elements shall be exposed to flame. Chevrons, labels, and reflective materials must meet the same fire resistance requirements as the top material.
6.3.3 Testing according to ISO 15025, method B (coded A2)
6.3.3.1 When tested in accordance with ISO 15025 Method B, samples of single-layer workwear incorporating a finished edge shall meet the following requirements:
a) on none of the samples should the flame boundary reach the top or side edges;
b) no melting, burning or melting residues should be observed on any of the samples;
c) the average residual burning time should be ≤2 s;
d) the average value of the residual smoldering time should be ≤2 s.
According to ISO 15025, glow within a charred area without resumption of combustion is not counted as residual smoldering.
Seam testing is carried out according to method B of ISO 15025 on three specimens containing a connecting seam and a seamed edge. The samples should be positioned so that the seam is directed up the center line of the sample and the torch flame hits the seam directly. After exposure to flame, the seams must remain intact.
6.3.3.2 The edge of the sample must be processed in the same way as the edge of the finished product.
6.3.3.3 If the workwear is multi-layered, then samples of bags, including seams, with seam-treated edges are tested by applying a flame to the edge of the multi-layer bag. Samples must comply with the requirements of 6.3.3.1 of this standard.
6.4 Change of linear dimensions after cleaning
6.4.1 General
The requirements of this section regarding changes in linear dimensions after cleaning do not apply to products intended for disposable use, products that cannot be washed or dry cleaned, or leather products.
6.4.2 Change in linear dimensions after preparing samples according to 5.2.1
6.4.2.1 The change in linear dimensions of fabrics, nonwovens and coated materials is determined in accordance with ISO 5077. The change in linear dimensions should not exceed 3% in length and width.
6.4.2.2 The change in the linear dimensions of knitted fabrics, determined according to ISO 5077, should not exceed 5%. The assessment of changes in the linear dimensions of knitted fabrics is carried out after they are straightened on a flat surface.
6.5 Requirements for physical and mechanical properties
6.5.1.1 The breaking load of the outer layer, determined in accordance with ISO 13934-1, excluding leather and knitted fabrics, shall be not less than 300 N at warp and weft.
6.5.1.2 The breaking load of the outer layer of leather, determined in accordance with ISO 3376, shall be not less than 60 N in two perpendicular directions. The test sample is prepared in accordance with the requirements of Table 1 of ISO 3376.
6.5.2.1 The tearing load of the outer layer, determined in accordance with ISO 13937-2, excluding leather and knitted fabrics, shall be not less than 15 N for warp and weft.
6.5.2.2 The tearing load of the outer layer of leather, determined in accordance with ISO 3377-1, shall be not less than 20 N in two directions perpendicular to the plane of the material.
6.5.3 Punching strength of knitted fabric
The strength of the knitted fabric used as the outer layer, determined according to ISO 13938-1, must be at least 200 kPa.
The breaking load of seams, determined according to ISO 13935-2, for seams of external material or seams of an outer product, for fabrics - not less than 225 N, for leather - not less than 110 N.
6.6 Resistance to water penetration (code W) (additional requirement)
If, in accordance with the intended use of the workwear, the manufacturer specifies requirements for resistance to water penetration, the suit must be tested and classified for both resistance to water penetration and resistance to water vapor, and must meet the following requirements:
a) resistance to water penetration is assessed and classified in accordance with the requirements of EN 343;
b) resistance to water vapor is assessed and classified in accordance with EN 343.
Workwear that meets the requirements of this paragraph must be marked in accordance with 8.4 of this standard.
6.7 Ergonomic requirements
The ergonomic characteristics of workwear that comply with this standard are assessed by carrying out experimental wear. Currently, international requirements for conducting experimental wear have not been approved, but an approximate methodology is included in Appendix D.
6.8 Requirements for fat content of leather
6.9 Safety requirements
None of the components of the workwear should have a harmful effect on the human body. This requirement must be confirmed by safety data sheets of individual materials and components used for the manufacture of workwear.
6.9.2 pH level
The pH level, determined according to ISO 3071 (for textiles) or ISO 4045 (for leather), should be between 3.5 and 9.5.
7 Requirements for heat transfer performance
7.1 General provisions
Workwear declared to comply with this standard must meet at least one heat transfer requirement coded B, C, D, E or F in addition to the mandatory minimum requirements of clause 6 of this standard.
Application of the performance requirements in this section must be consistent with the intended use as stated by the clothing manufacturer.
7.2 Convective heat transfer (code B)
When tested in accordance with ISO 9151, single-layer or multi-layer garments and/or assemblies claiming to provide protection against convective heat transfer shall meet at least protection level B1 of Table 1. The required performance of this clause shall be selected in accordance with the intended use declared. manufacturer of workwear.
Table 1 - Protection levels: convective heat transfer test
7.3 Thermal radiation (code C)
When tested in accordance with Method B of ISO 6942 at a heat flux density of 20 kW/m2, single or multi-layer garments and/or garments claiming to provide radiation thermal protection shall meet at least protection level C1 of Table 2. Tests on metallized fabrics are carried out after preparation in accordance with Annex A. The thermal radiation transmission indicator is taken to be the minimum value obtained from testing the number of samples specified in ISO 6942, rounded to the nearest 0.1 s.
Table 2 - Protection levels: thermal radiation test
7.4 Molten aluminum splash (code D)
When tested in accordance with ISO 9185 using molten aluminum, single or multi-layer garments and/or garments claimed to provide protection against molten aluminum splash shall meet at least protection level D1 of Table 3.
Notes
NOTE 2 Acceptable performance obtained from testing in accordance with ISO 9185 using molten aluminum generally provides a basis for determining the suitability of the material for protection against molten aluminum bronze and molten minerals.
Table 3 - Levels of protection: molten aluminum splash
7.5 Molten Iron Splash (Code E)
When tested in accordance with ISO 9185 using molten iron, single or multi-layer articles and/or garments claiming to provide protection against molten iron splash shall meet at least protection level E1 of Table 4.
Notes
1 Chevrons, labels, fittings, contact tape, reflective materials, etc. located on the product can impair the protective performance of clothing and/or clothing sets.
NOTE 2 Acceptable performance obtained from testing in accordance with ISO 9185 using molten iron generally provides a basis for determining the suitability of a material for protection against molten copper, phosphor bronze and brass.
Table 4 - Levels of protection: splash of molten iron
7.6 Contact heat transfer (code F)
When tested in accordance with ISO 12127 at 250°C, single or multi-layer garments and/or garments claiming to provide protection against contact heat transfer shall meet at least protection level F1 of Table 5. The threshold time shall be taken as the minimum value , obtained by testing the number of samples specified in ISO 12127, rounded to the nearest 0.1 s.
Table 5 - Protection levels: contact heat transfer
7.7 Protection against thermal risks from electric arcs (additional requirement)
Annex F includes comments that can be used as guidance for users whose work conditions involve an arc hazard and where there is a need to determine clothing requirements to protect against the thermal hazards of an arc.
7.8 Testing of a set of protective clothing to predict burns (additional test)
A set of personal protective equipment or multi-layered workwear that meets this standard may additionally be tested against the ISO 13506 standard for the prediction of burns. If this test is carried out, a test dummy is used; testing on humans is prohibited.
The test kit includes additional devices that are used in conjunction with special clothing during operation.
Test procedures according to ISO 13506 are given in Annex C.
Note - The practice of testing according to ISO 13506 shows that obtaining the most complete and reliable information about the protective properties of single-layer and multi-layer sets of workwear ensures testing at an incident energy value of 84 kW/m 2 with a minimum exposure time of 4 s. When testing multi-layer clothing sets, it may be necessary to increase the flame exposure time to 8 s. Additional research is needed to determine a consistent correlation between test conditions and actual flame exposure. For reasons depending on the test methodology, the reproducibility of test results decreases when the flame exposure time is less than 3 s. In this regard, the flame exposure time cannot be less than 3 s.
