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GB 31422.2-2025 English PDF

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US$359.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB 31422.2-2025: Hearing protective equipment - Part 2: Earmuffs
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 31422.2-2025	359	Add to Cart	4 days	Hearing protective equipment - Part 2: Earmuffs	Valid

Basic data

Standard ID: GB 31422.2-2025 (GB31422.2-2025)
Description (Translated English): Hearing protective equipment - Part 2: Earmuffs
Sector / Industry: National Standard
Classification of Chinese Standard: C73
Classification of International Standard: 13.340.20
Word Count Estimation: 18,195
Date of Issue: 2025-08-29
Date of Implementation: 2026-09-01
Older Standard (superseded by this standard): GB/T 31422-2015
Issuing agency(ies): State Administration for Market Regulation, National Standardization Administration

GB 31422.2-2025: Hearing protective equipment - Part 2: Earmuffs

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB31422.2-2025
ICS 13.340.20 CCSC73 National Standard of the People's Republic of China Partially replaces GB/T 31422-2015 Hearing protection equipment Part 2.Earmuffs Released on August 29, 2025 Implementation on September 1, 2026 State Administration for Market Regulation The National Standardization Administration issued

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 categories 4 5 Technical Requirements 5 6 Logo 7 7 Information to be provided by the manufacturer 7 Reference 10 Preface 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 31422 Hearing Protective Equipment. GB 31422 has been published in the following parts. --- Part 1.Earplugs; --- Part 2.Earmuffs. This document partially replaces GB/T 31422-2015 "General technical requirements for personal protective equipment hearing protectors" and GB/T 31422- Compared with.2015, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The scope has been changed (see Chapter 1, Chapter 1 of the.2015 edition); b) Added and modified terms and definitions (see Chapter 3, Chapter 3 of the.2015 edition); c) The classification has been changed and the size type has been deleted (see Chapter 4, Chapter 4 of the.2015 edition); d) The technical requirements for materials and structures have been changed (see 5.1.1, 5.1.2, and 5.1.1 and 5.1.2 of the.2015 edition); e) Deleted the technical requirements for earplugs (see 5.3 of the.2015 edition); f) The technical requirements for clamping force changes have been changed (see 5.1.10, 5.2.10 of the.2015 edition); g) The technical requirements for sound attenuation have been modified (see 5.1.14 and 5.2.14 of the.2015 edition); h) Changed the technical requirements for low-temperature drop resistance (see 5.2.1, 5.2.7 of the.2015 edition); i) Added additional performance requirements for the sound level correlation function (see 5.2.2); j) Added additional performance requirements for safety-related audio input earmuffs (see 5.2.3); k) Added additional performance requirements for non-safety related audio input earmuffs (see 5.2.4); l) Added additional performance requirements for active noise reduction earmuffs (see 5.2.5); m) The test method was deleted (see Chapter 6 of the.2015 edition); n) The logo has been changed (see Chapter 6, Chapter 7 of the.2015 edition); o) Deleted the earplug logo (see 7.2 of the.2015 edition); p) The information that the manufacturer should provide has been changed (see Chapter 7 and Chapter 8 of the.2015 edition); q) Deleted the information provided by the manufacturer of earplugs (see 8.2 of the.2015 edition); r) Deleted the applicable conditions of the technical requirements for hearing protectors (see Appendix A of the.2015 edition); s) The test procedure (see Appendix B of the.2015 edition) has been deleted. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed and coordinated by the Ministry of Emergency Management of the People's Republic of China. The previous versions of this document and the documents it replaces are as follows. ---First published in.2015 as GB/T 31422-2015; ---This is the first revision.

introduction

Noise hazards are widely present in various industries and people's lives. Long-term exposure to high-intensity noise can cause irreversible damage to human hearing. Hearing protection equipment, also known as hearing protectors, is personal protective equipment used to prevent or reduce noise damage to human hearing. The technical requirements of the equipment, to ensure the health and safety of users, considering the application needs, technical characteristics and technical Based on the current state of the art, GB 31422 "Hearing Protective Equipment" was revised and compiled, and is intended to consist of two parts. --- Part 1.Earplugs. The purpose is to standardize the technical requirements, marking and manufacturer information of earplugs. Additional requirements are imposed on earplugs. --- Part 2.Earmuffs. The purpose is to standardize the technical requirements, marking and manufacturer information of earmuffs. Additional requirements are specified for earmuffs. The test method standards for hearing protection equipment implemented in conjunction with the following are. ---GB/T 46342-2025 "General test methods for hearing protection equipment". The selection, use and maintenance standards for hearing protection equipment to be implemented are. ---GB 23466-2025 Selection, use and maintenance of hearing protection equipment. Hearing protection equipment Part 2.Earmuffs

1 Scope

This document specifies the technical requirements, labeling and manufacturer-provided information for earmuffs. This document applies to all types of earmuffs that have the function of reducing noise and protecting human hearing.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 12903 Terminology of Personal Protective Equipment GB/T 46342-2025 General test methods for hearing protection equipment ISO 4869-2.2018 Acoustics- Hearing protectors-Part 2.Estimation of the effective A-weighted sound pressure level when wearing hearing protectors protectorsareworn)

3 Terms and Definitions

The terms and definitions defined in GB/T 12903 and the following apply to this document. 3.1 hearing protector Personal protective equipment that protects hearing and prevents people from excessive noise stimulation. 3.2 Hearing protection that relies solely on product design and material type, without relying on electronics, to provide attenuation of external sounds. 3.3 earmuffs Hearing protection consisting of a cup (3.4) that presses against the auricle or surrounds the auricle and fits tightly against the head. 3.4 cup A cup-shaped component with a certain sound insulation capability mounted on the earmuff (3.3) hoop or support arm (3.5), usually equipped with a cup pad (3.6) and Sound absorbing lining (3.7). 3.5 cupsupportingarm Press the cup pad (3.6) tightly through the cup (3.4) to ensure that the earmuffs (3.3) fit tightly around the auricle and are in contact with head protection equipment such as helmets or eye and face protection. An arm attached to the outer shell of protective gear. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB 31422.2-2025_English be delivered?

Answer: Upon your order, we will start to translate GB 31422.2-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB 31422.2-2025_English with my colleagues?

Answer: Yes. The purchased PDF of GB 31422.2-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.