
Sound power levels of noise sources. Survey method for determination of sound power levels of noise sources using a reference sound source.
NORMA vydaná dňa 30.12.1988
Designation standards: BS 4196-7:1988
Note: NEPLATNÁ
Publication date standards: 30.12.1988
The number of pages: 26
Approximate weight : 78 g (0.17 lbs)
Country: British technical standard
Kategória: Technické normy BS