Intercomparison test of sound insulation measurement in test facilities. II

Abstract

In the second part of this paper, the results obtained in the principal test are presented and the differences between the sound insulation found in the individual testing facilities discussed. It is moreover shown, if the total loss factor allows the sound reduction indices to be converted, thus a uniform assessment of heavy, solid building elements on all test facilities is achieved. On the basis of these results it will be investigated whether the theoretical approaches of the prediction methods (e.g., ISO 12354) are sufficient for the conversion of the sound insulation of building elements.