
Acoustics - Hearing protectors - Part 1: Subjective method for the measurement of sound attenuation (ISO 4869-1:2018)
NORMA vydána dne 26.2.2020
Designation standards: UNE-EN ISO 4869-1:2020
Publication date standards: 26.2.2020
The number of pages: 27
Approximate weight : 81 g (0.18 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE