Acoustics. Determination of sound power levels of noise sources using sound pressure. Engineering method in an essentially free field over a reflecting plane.
NORMA vydaná dňa 1.12.1995
Designation standards: BS EN ISO 3744:1995
Note: NEPLATNÁ
Publication date standards: 1.12.1995
The number of pages: 44
Approximate weight : 132 g (0.29 lbs)
Country: British technical standard
Kategória: Technické normy BS