GB 3609.2-2025 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 3609.2-2025	RFQ	ASK	3 days	Eye and face protection - Welding protection - Part 2: Automatic welding filter	Valid
GB/T 3609.2-2009	559	Add to Cart	5 days	Occupational eye and face protection -- Welding protection -- Part 2: Automatic welding filter	Valid
GB/T 3609.2-1983	199	Add to Cart	2 days	Methods of non-optical test for welding goggles and mask	Obsolete

Basic data

Standard ID: GB 3609.2-2025 (GB3609.2-2025)
Description (Translated English): Eye and face protection - Welding protection - Part 2: Automatic welding filter
Sector / Industry: National Standard
Date of Implementation: 2026-09-01
Older Standard (superseded by this standard): GB/T 3609.2-2009

GB/T 3609.2-2009: Occupational eye and face protection -- Welding protection -- Part 2: Automatic welding filter

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Occupational eye and face protection.Welding protection.Part 2. Automatic welding filter ICS 13.340.10 F79 National Standards of People's Republic of China Occupational eye and face protection Welding Protection Part 2. auto-darkening welding filter Posted 2009-04-01 2009-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Structure 3 5 Technical requirements 3 6 Test Method 8 7 packaging, labeling, storage and transport 10 Appendix A (normative) Calculation of shading No. 12 Annex B (informative) to select different environment Shade Number 15 Annex C (informative) stray light reduction coefficient of brightness measurement apparatus 17 References 19

Foreword

GB/T 3609 "Occupational eye and face protection Welding Protection" is divided into two parts. --- Part 1. Welding protector; --- Part 2. Auto-darkening welding filter. This part mainly based on the ISO /CD4007.2008 "Personal protective equipment - Eye and face protection - Terminology", EN166 "Personal eye Protection - overall specification and use "and EN379" Personal eye protection - auto-darkening welding filter. " Appendix A of this section is normative appendix, Appendix B and Appendix C are informative appendices. This part is proposed by the State Administration of Work Safety. This part of the National Personal Protective Equipment Standardization Technical Committee (SAC/TC112) centralized. This section is drafted. Beijing Aurora Safety Protection Technology Co., Ltd., Shanghai Institute of Safety Science, Beijing Labor Protection Section Institute and Hebei Jiya Electronics Co., Ltd. The main drafters of this section. Shaobao Ren, Yang Wenfen, Yang Xiaohong, Hu Hongjun, Tang Yiming, Chen Cho is at dawn Road, war Wei, Xiao-Di, Cai Xu Zhong, prosperous, Kou Feng, SUN Yan water, Wang Xiaoyan. Occupational eye and face protection Welding Protection Part 2. auto-darkening welding filter

1 Scope

This section GB/T 3609 specifies the auto-darkening welding filter structure and optical properties, non-optical properties, test methods, inspection Rules, packaging, labeling, storage and transportation. This section applies to welders protective mask is mounted on the auto-darkening welding filter can prevent harmful light, ultraviolet and infrared radiation Radiation damage to the eye.

2 Normative references

The following documents contain provisions which, through reference to GB/T 3609 to the present, constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 191 Packaging - Pictorial signs (GB/T 191-2008, ISO 780.1997, MOD) GB/T 1185-2006 optical components surface flaws GB/T 3609.1 occupational eye and face protection Welding protection - Part 1. Welding protector GB 10810.1-2005 spectacle lenses - Part 1. Single light and multifocal lenses

3 Terms and Definitions

GB/T 3609.1 and GB 10810.1-2005 established as well as the following terms and definitions apply to this section. 3.1 With a suitable auto-darkening welding filter mask to protect the eyes during welding operations and face. 3.2 Instant when the welding arc can automatically shading label into a higher value (dark state Shade Number) from the lower value (bright light shielding state number) Protective filter. 3.2.1 In an instant the welding arc can be automatically converted from the lower level value (bright state level) to a predetermined higher value (dark state level) Protective filter. 3.2.2 Since with automatic conversion function, it can play the strength of the arc irradiance of instant arc welding according to automatically adjust the level of the dark state Shade Number Movements light welding filter. 3.3 Auto-darkening welding filter darkness numbers by the formula (1). ......

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