scope:

This draft European Standard specifies additional information necessary to carry out efficiently and under standardized conditions the determination of the sound reduction index of drywall systems of plasterboard with steel studs according to EN ISO 10140-2 "Acoustics - Laboratory measurement of sound insulation of building elements - Part 2: Measurement of airborne sound insulation". It specifies the additional requirements of the sound reduction measurements, the operating and mounting conditions that shall be used for the test and additional test report information to be reported. Observe that all demands in EN ISO 10140-2 still must be fulfilled. The results obtained are used to convert frequency-dependent sound reduction index into single number ratings, according to EN ISO 717-1. These performances can be used to compare different products, or, and to express a requirement, or, and as input into estimation methods, such as the series EN 12354-1.