scope:

This part of the standard specifies the test method for determining the dynamic stiffness of resilient materials used under floating floors. Dynamic stiffness is one of the parameters that determine the sound insulation of such floors in dwellings. This part of ISO 9052 applies to the determination of dynamic stiffness per unit area of resilient materials with smooth surfaces used in a continuous layer under floating floors in dwellings. It does not apply to loadings lower than 0,4 kPa for example materials in wall linings, or greater than 0,4 pKa for example materials under machinery foundations. This part of ISO ()52 is mainly intended to be used for comparing production samples of similar materials of known specified quality.