GB 24539-2021 English PDF

Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click GB 24539-2021
Historical versions: GB 24539-2021
Preview True-PDF (Reload/Scroll if blank)

GB 24539-2021: Protective clothing. Chemical protective clothing
GB 24539-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 13.340.10
CCS C 73
Replacing GB 24539-2009, GB 24540-2009, GB/T 29511-2013
Protective clothing - Chemical protective clothing
ISSUED ON: AUGUST 10, 2021
IMPLEMENTED ON: SEPTEMBER 01, 2022
Issued by: State Administration for Market Regulation.
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 7
4 Types and codes ... 10
5 Technical requirements ... 11
6 Test methods ... 32
7 Signs ... 38
Appendix A (Normative) Test method for overall gas tightness of chemical protective
clothing ... 40
Appendix B (Normative) Test method for inward leakage rate of chemical protective
clothing ... 43
Appendix C (Normative) Test method for liquid tightness performance of chemical
protective clothing ... 50
Appendix D (Normative) Test method for inward leakage rate of chemical protective
clothing providing protection against air borne solid particulate ... 60
Appendix E (Normative) Subject actions assessed by practical performance tests ... 67
Appendix F (Normative) Test method of liquid pressure penetration resistance ... 70
Appendix G (Normative) Test method for clothing material penetration time of woven
material liquid acid and alkali chemical protective clothing ... 83
Appendix H (Normative) Test method for hydrostatic pressure resistance of clothing
materials for woven material liquid acid and alkali chemical protective clothing ... 85
Appendix I (Normative) Test method for liquid repellency of clothing materials of
chemical protective clothing ... 87
Appendix J (Normative) Test method for abrasion resistance of clothing materials of
chemical protective clothing ... 93
Appendix K (Normative) Destructive test method for flexural resistance of clothing
materials of chemical protective clothing ... 96
References ... 99
Protective clothing - Chemical protective clothing
1 Scope
This document stipulates the type division, grading, marking, basic technical
requirements, test methods of chemical protective clothing.
This document applies to the chemical protective clothing required by employees in the
workplace and emergency rescue work.
This document does not apply to chemical protective clothing used in firefighting and
other occasions.
Note 1: This document does not specifically propose performance indicator requirements for
personal protective equipment, such as gloves, protective boots/shoes, protective masks, view
windows, safety glasses, breathing apparatus, unless the protective equipment is an integral part
of the protective clothing and provides corresponding chemical protection properties.
Note 2: The protection objects involved in this document include gaseous, liquid, solid chemical
substances.
2 Normative references
The contents of the following documents constitute essential provisions of this
document through normative references in the text. Among them, for dated reference
documents, only the version corresponding to the date applies to this document; for
undated reference documents, the latest version (including all amendments) applies to
this document.
GB/T 2912.1 Textiles - Determination of formaldehyde - Part 1: Free and
hydrolyzed formaldehyde (water extraction method)
GB/T 3820 Determination of thickness of textiles and textile products
GB/T 3917.3 Textiles - Tear properties of fabrics - Part 3: Determination of tear
force of trapezoid-shaped test specimens
GB/T 3920 Textiles - Tests for color fastness - Color fastness to rubbing
GB/T 3923.1 Textiles - Tensile properties of fabrics - Part 1: Determination of
maximum force and elongation at maximum force using the strip method
GB/T 4669 Textiles - Woven fabrics - Determination of mass per unit length and
mass per unit area
GB/T 4744 Textiles - Testing and evaluation for water resistance - Hydrostatic
pressure method
GB/T 7573 Textiles - Determination of pH of aqueous extract
GB/T 8629 Textiles - Domestic washing and drying procedures for textile testing
GB/T 8685 Textiles - Care labeling code using symbols
GB/T 12586 Rubber-or plastics-coated fabrics - Determination of resistance to
damage by flexing
GB/T 13640 Size designation of protective clothing
GB/T 13773.2 Textiles - Seam tensile properties of fabrics and made-up textile
articles - Part 2: Determination of maximum force to seam rupture using the grab
method
GB/T 17592 Textiles - Determination of the banned azo colorants
GB 18401 National general safety technical code for textile products
GB/T 19981.2 Textiles - Professional care, drycleaning and wet cleaning of fabrics
and garments - Part 2: Procedure for testing performance when cleaning and
finishing using tetrachloroethene
GB/T 20655 Protective clothing - Mechanical properties - Determination of the
resistance to puncture
GB/T 21196.2-2007 Textiles - Determination of the abrasion resistance of fabrics by
the Martindale method - Part 2: Determination of specimen breakdown
GB/T 21294-2014 Testing methods of physical and chemical performance of
garments
GB/T 23344 Textiles - Determination of 4-aminoazobenzene
GB/T 23462 Protective clothing - Test method for chemical protective materials to
permeation by chemicals
ISO 15797 Textiles - Industrial washing and finishing procedures for testing of
workwear
3.6
Gas-tight chemical protective clothing
A single-piece chemical protective clothing with hood, window, hand and foot
protection, which can protect against higher levels of toxic and harmful chemicals
(gas, liquid, solid particles, etc.), when used in conjunction with appropriate
respiratory protective equipment.
3.7
Chemical protective suits for emergency response team
Type of chemical protective clothing, which is worn by workers during emergency
rescue work.
Note: The abbreviation "ET" represents the chemical protective clothing used by emergency
rescue response teams, such as: gas-tight chemical protective suits for emergency response
team, liquid jet tight chemical protective suits for emergency response team.
3.8
Gas-tight chemical protective suits for emergency response team
A single-piece chemical protective clothing worn by workers during emergency
rescue work, which is equipped a hood, view window, hand and foot protection; can
protect against toxic and harmful chemical substances, such as gases, liquids, solid
particles.
3.9
Liquid tight chemical protective clothing
Protective clothing to protect against liquid chemicals.
Note: A full-body protective suit that maintains a liquid-tight connection, between the
various parts of the protective suit, as well as between the hood, gloves, shoes, visor or
respiratory protection and other equipment used in conjunction with it. It can be a single
jumpsuit, a suit with upper and lower parts, or a matching hood, visor, socks, boots, gloves,
etc.
3.10
Liquid jet tight chemical protective clothing
Full body protective clothing for protection against liquid chemicals with high
pressure.
Note: Maintain spray liquid-tight connections between the various components of the
protective clothing, as well as between the hoods, gloves, shoes, visors or respiratory
protection equipment used with them. It can be a single jumpsuit, an upper and lower body
suit, or it can be equipped with a hood, visor, socks, boots, gloves, etc.
3.11
Li...