
Acoustics. Hearing protectors. Part 1: Subjective method for the measurement of sound attenuation
NORM herausgegeben am 1.2.2021
Designation standards: STN EN ISO 4869-1
Classification mark: 832131
Catalog number: 132237
Publication date standards: 1.2.2021
Approximate weight : 30 g (0.07 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN