GB 31422.1: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB 31422.1-2025 | English | RFQ |
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Hearing protective equipment - Part 1: Earplugs
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GB 31422.1-2025
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| GB/T 31422-2015 | English | 779 |
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Personal protective equipment -- General technical requirements for hearing protectors
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GB/T 31422-2015
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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Part 1: Earplugs | | Sector / Industry | National Standard | | Date of Implementation | 2026-09-01 | | Older Standard (superseded by this standard) | GB/T 31422-2015 | GB/T 31422-2015: Personal protective equipment -- General technical requirements for hearing protectors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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