Acoustics. Hearing protectors - Method for estimation of noise reduction using fitting by inexperienced test subjects Ingestion-build-81111 light industrial and residential use

light industrial and residential use

Why should you use ISO 19302

in millimetres

fittings and valves

a) the Los Angeles test (reference method)

Acoustics. Hearing protectors - Method for estimation of noise reduction using fitting by inexperienced test subjects Ingestion-build-81111 light industrial and residential use1 Scope This Technical Specification specifies a method for measuring noise reduction of passive hearing protectors at the threshold of hearing. The method is designed to provide estimates of the noise reduction obtained by typical groups of users in real world occupational settings, who may lack the training and motivation to wear hearing protectors in an optimum manner. The principle of the test method is to measure the difference in hearing