BS EN ISO 140-1:1998 Acoustics. Measurement of sound insulation in buildings and of building elements-Requirements for laboratory test facilities with suppressed flanking transmission
2011BS EN ISO 10140-5:2011 Acoustics. Laboratory measurement of sound insulation of building elements. Requirements for test facilities and equipment
2005BS EN ISO 140-1:1998 Acoustics. Measurement of sound insulation in buildings and of building elements-Requirements for laboratory test facilities with suppressed flanking transmission