NF S31-049-8:1997
聲學.建筑物和建筑元件的隔音測量.第8部分:通過標準厚重地板覆蓋物減少撞擊噪音傳播的試驗室測量
Acoustics. Measurement of sound insulation in buildings and of building elements. Part 8 : laboratory measurements of the reduction of transmitted impact noise by floor coverings on a heavyweight standard floor.