Sound absorbing materials used in buildings. Assessment of sound absorption
NORMA vydaná dňa 1.3.2010
Designation standards: GOST R 53377-2009
Note: NEPLATNÁ
Publication date standards: 1.3.2010
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Russian technical standard
Kategória: Technické normy GOST