GB/T 31422-2015
Personal protective equipment.General technical requirements for hearing protectors (English Version)

Standard No.

GB/T 31422-2015

Language

Chinese, Available in English version

Release Date

2015

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 31422-2015

Scope

This standard specifies the requirements, physical performance test, acoustic performance test and marking of earmuff and earplug hearing protectors. This standard applies to earmuffs and earplugs for use in the workplace. This standard does not apply to the acoustic performance test of hearing protectors with holes or valves and the acoustic performance test of hearing protectors with circuits in the open state of the circuit.

GB/T 31422-2015 Referenced Document

• GB 2811 Head protection—Safety helmets*， 2019-12-31 Update
• GB/T 7584.1 Acoustics-Hearing Protectors Part 1:Subjective method for the measurement of sound attenuation
• GB/T 7584.2 Acoustics--Hearing protectors--Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn
• GB/T 7584.3 Acoustics.Hearing protectors.Part 3:Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture

GB/T 31422-2015 history

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