GB 8965.2-2022Protective clothing—Protective clothing for welders (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting.

This document is part 2 of GB 8965 "Protective Clothing". GB 8965 has released the following parts.

---GB 8965.1-2020 Flame-retardant clothing for protective clothing;

---GB 8965.3-2022 Protective clothing molten metal splash protective clothing;

---GB 8965.4-2022 Protective clothing Arc protection clothing.

This document replaces GB 8965.2-2009 "Protective Clothing Flame Retardant Protection Part 2: Welding Clothing", and is consistent with GB 8965.2-2009 In addition to structural adjustments and editorial changes, the main technical changes are as follows.

--- Added requirements for volume resistance of welding clothing fabrics, radiant heat conductivity index, and decomposable carcinogenic aromatic amine dyes (see 5.4.1);

--- Added the requirements for tear strength, formaldehyde content, pH and hexavalent chromium content of leather fabrics (see 5.4.1);

--- Added the test method for thermal stability of clothing accessories (see 6.19);

--- Changed the test method for the flame retardancy of fabrics (see 6.4, 6.4 of the 2009 edition);

--- Changed the technical indicators and test methods of seam strength (see 5.4.3.3, 6.20, 5.5.3.2, 6.11 of the 2009 edition);

--- Changes and supplements have been made to the marking requirements (see 7.1, 8.1 of the 2009 edition).

Introduction

In the working environment, typical forms of flame and heat injury include direct contact with flames, exposure to flames and hot solids during welding, exposure to All kinds of molten metal splashed and arc discharge cause human body to be damaged by thermal energy, etc. Due to the different forms and characteristics of different flames and heat damage At the same time, different requirements for body protection have been put forward, and different protective clothing categories have also been developed. This document considers different types of domestic and foreign Based on the application requirements and technical status of flame and heat damage protection products, the technical requirements for main types of protective clothing are formulated respectively. Place The GB 8965 series of product standards compiled is proposed to be composed of 4 parts.

--- Part 1: Flame retardant clothing. The purpose is to clarify that there are open flames, sparks, or where there is a risk of flammable substances and flashover Technical requirements for the protective clothing used.

--- Part 2: Welding clothing. The purpose is to clarify the technical requirements for protective clothing used in welding and related workplaces.

--- Part 3: Molten metal splash protective clothing. The purpose is to clarify metal smelting, casting and other places where there are molten metal splash hazards Technical requirements for protective clothing used to avoid or reduce damage to workers caused by molten metal.

--- Part 4: Arc protection clothing. The purpose is to clearly protect electrical operations and related workplaces that may suffer from arc transient energy and technical requirements for protective clothing against thermal damage.

1 Scope

This document specifies the protection level, technical requirements, test methods, inspection rules, marking and Package.

The products to which this document applies are used to protect personnel engaged in welding operations from molten substances and their thermal injuries.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 2912.1 Determination of formaldehyde in textiles - Part 1: Free and hydrolyzed formaldehyde (water extraction method)

GB/T 3291.3 Textile properties and test terms of textile materials - Part 3: General

GB/T 3917.3 Tear properties of textile fabrics - Part 3: Determination of tear strength of trapezoidal specimens

GB/T 3920 Tests for color fastness of textiles Color fastness to rubbing

GB/T 3921 Tests for color fastness of textiles Color fastness to soaping

GB/T 3922 Tests for color fastness of textiles Color fastness to perspiration

GB/T 3923.1 Tensile properties of textile fabrics - Part 1: Determination of breaking strength and elongation at break (strip method)

GB/T 5296.4-2012 Instructions for use of consumer products Part 4: Textiles and clothing

GB/T 7573 Determination of pH value of textile water extract

GB/T 8628 Preparation, marking and measurement of fabric samples and garments in tests for the determination of dimensional changes in textiles

GB/T 8629-2017 Domestic washing and drying procedures for textile testing

GB/T 8630 Determination of dimensional change of textiles after washing and drying

GB 8965.1 Flame-retardant clothing for protective clothing

GB/T 12704.1 Test methods for moisture permeability of textile fabrics - Part 1: Moisture absorption method

GB/T 13640 Labor protective clothing size

GB/T 13773.1 Seam tensile properties of textile fabrics and their products - Part 1: Determination of seam strength by strip method

GB/T 13773.2 Seam tensile properties of textile fabrics and their products - Part 2: Determination of seam strength by grab sample method

GB/T 17592 Determination of banned azo dyes in textiles

GB/T 17599 Determination of heat resistance performance of fabrics for protective clothing and resistance to molten metal drop impact

GB 18401 National Basic Safety Technical Specifications for Textiles

GB/T 19941.2 Determination of formaldehyde content in leather and fur - Part 2: Spectrophotometric method

GB/T 19942 Determination of prohibited azo dyes in chemical tests of leather and fur

GB/T 20097 General requirements for protective clothing

GB 20400 Limits of Hazardous Substances in Leather and Fur

GB 20653 Protective clothing Occupational high-visibility warning clothing

GB/T 22807 Determination of hexavalent chromium content in chemical tests of leather and fur. spectrophotometric method