GB/T 7584.2-1999
Acoustics--Hearing protectors--Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn (English Version)

Standard No.

GB/T 7584.2-1999

Language

Chinese, Available in English version

Release Date

1999

Published By

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

Latest

GB/T 7584.2-1999

Scope

This standard specifies three methods (octave band method, HML method and SNR method) for estimating effective A-weighted sound pressure levels when hearing amplifiers are worn. These three methods are applicable to both the sound pressure level of noise and the equivalent connection sound pressure level of noise. The method specified in this standard is mainly applicable to steady-state noise exposure, but it can also be used for noise containing impulsive components. This provision does not apply to noise measured at peak sound pressure level. Octave band value, H value, M value, L value or SNR value are used to establish sound attenuation evaluation criteria, so as to facilitate the selection and comparison of loudspeakers, and to formulate minimum requirements for sound attenuation.

GB/T 7584.2-1999 history

• 1999 GB/T 7584.2-1999 Acoustics--Hearing protectors--Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn

GB/T 7584.2-1999 -All Parts