
Sound power levels of noise sources. Precision methods for determination of sound power levels for sources in anechoic and semi-anechoic rooms.
NORMA vydána dne 30.1.1981
Designation standards: BS 4196-5:1981
Note: NEPLATNÁ
Publication date standards: 30.1.1981
The number of pages: 26
Approximate weight : 78 g (0.17 lbs)
Country: British technical standard
Kategorie: Technické normy BS