Historical
BS EN ISO 140-3:1995
Acoustics. Measurement of sound insulation in buildings and of building elements. Laboratory measurement of airborne sound insulation of building elements (British Standard)
Cancels and replaces the first edition (1978) and its amendment (1990). Specifies a laboratory method of measuring the airborne sound insulation of building elements such as walls, floors, doors, windows, facade elements and facades, except those classified as small building elements.
British Standards Institution [bsi]