Sound absorbing materials used in buildings. Assessment of sound absorption
NORMA vydána dne 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
Kategorie: Technické normy GOST