NF S31-049-11:2005 Acoustics - Measurement of sound insulation in buildings and of building elements - Part 11 : laboratory measurements of the reduction of transmitted impact sound by floor coverings on lightweight reference floors.
2013NF S31-049-1:2013 Acoustics - Laboratory measurement of sound insulation of building elements - Part 1: application rules for specific products
2005NF S31-049-11:2005 Acoustics - Measurement of sound insulation in buildings and of building elements - Part 11 : laboratory measurements of the reduction of transmitted impact sound by floor coverings on lightweight reference floors.