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BS 5821-1:1984

Заменен
Methods for rating the sound insulation in buildings and of building elements, Method for rating the airborne sound insulation in buildings and of interior building elements — 8 стр.
BS 5821-1:1984
Заменен
BS EN ISO 717-1:1997
Заменен
BS EN ISO 717-1:2013
Действует