GB 31422.1-2025 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 31422.1-2025	RFQ	ASK	3 days	Hearing protective equipment - Part 1: Earplugs	Valid
GB/T 31422-2015	779	Add to Cart	6 days	Personal protective equipment -- General technical requirements for hearing protectors	Valid

Basic data

Standard ID: GB 31422.1-2025 (GB31422.1-2025)
Description (Translated English): Hearing protective equipment - Part 1: Earplugs
Sector / Industry: National Standard
Date of Implementation: 2026-09-01
Older Standard (superseded by this standard): GB/T 31422-2015

GB/T 31422-2015: Personal protective equipment -- General technical requirements for hearing protectors

---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.
Personal protective equipment. General technical requirements for hearing protectors ICS 13.340.99 C73 National Standards of People's Republic of China Personal Protective Equipment Hearing protectors - General technical conditions Issued on. 2015-05-15 2015-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions Classification and type 4 No. 4 4.1 Category 4 No. 4.2 Type 4 5 Requirements 4 5.1 General requirements 4 5.2 earmuffs technical requirements 5 5.3 earplugs technical requirements 6 6 Test Method 6 6.1 Test Process 6 6.2 Sample Number 6 7 6.3 Test Environment 6.4 Physical Performance Test 7 6.5 Acoustic Performance Test 23 7 logo 26 26 7.1 earmuffs 7.2 earplug 26 8 information supplied by the manufacturer 26 26 8.1 earmuffs 8.2 earplug 27 Appendix A (normative) hearing protectors technical requirements of the applicable conditions 29 Appendix B (normative) Testing Process 30 References 33

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard reference BSEN352 series of standards and BSEN13819 series. This standard was proposed by the State Administration of Work Safety. The standard personal protective equipment by the National Standardization Technical Committee (SAC/TC112) centralized. This standard was drafted. Beijing Institute of Labour Protection, 3M China Ltd., Honeywell Integrated Technology (China) Limited The company, Xiamen Hi-Tech Antistatic Equipment Co., Ltd. Jiangxi joint creation of electro-acoustic. The main drafters of this standard. Yang Wenfen, Liuhong Juan, Fang Xiangming, Liu Yufei, Xu Sheng, Lin Guocheng, Liu Ji, Luomu Xia, Chen Cho, for wisdom Hongliang, Peng Yu Meng, Liu Jinyan, Zhuo State Palace, Xie Xiaojing. Personal Protective Equipment Hearing protectors - General technical conditions

1 Scope

This standard specifies the-ear and in-ear hearing protection requirements, physical performance test, acoustic performance testing and logo. This standard applies to use in the workplace-ear and in-ear hearing protectors. This standard does not apply to acoustical performance tests and hearing protectors with circuit circuit hearing protectors valve open or perforated acoustic performance state test.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB 2811 helmets Subjective method of measurement of sound attenuation. GB/T 7584.1 Hearing protectors - Part 1 GB/T 7584.2 Hearing protectors - Part 2. when hearing protectors are worn effective A-weighted sound pressure level estimate GB/T 7584.3 Hearing protectors - Part 3. Test using a dedicated device for measuring acoustic earmuff type hearing protectors are inserted loss

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Hearing protectors hearingprotector Protecting your hearing, make the noise from overstimulation of protective equipment. [GB/T 23466-2009, Definition 3.1] 3.2 Ear ear-muff Surrounded by the pinch ear or pinna four weeks and close to the head of the cup and other components of hearing protectors. Note. The cup support arm on the helmet and fixed by clamping hoop or fit into. 3.3 Cup cup Cup-shaped component has a certain ability to install insulation in earmuffs hoop or support arm. Note. usually equipped with cup pads and sound absorbing lining. 3.4 Cup pad cushion Fitted in the cup edge of the deformable component. Note. usually contains foam or liquid filler, for improving the wear ear comfort and adhesion. 3.5 Acoustic Lining liner Sound-absorbing material inside the cup. ......

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