Acoustics - Hearing protectors - Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn (ISO 4869-2:2018)
NORM herausgegeben am 1.5.2019
Designation standards: STN EN ISO 4869-2
Classification mark: 832131
Catalog number: 128475
Note: UNGÜLTIG
Publication date standards: 1.5.2019
Approximate weight : 30 g (0.07 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN