Acoustics. Measurement of in-situ sound insulation of buildings and building elements. Part 2: Impact noise insulation

This technical document establishes a comprehensive framework for assessing airborne and impact sound insulation within buildings and their components under actual site conditions. Specifically designed for the second part of the series, it focuses on the measurement procedures for impact sound transmission in floor structures. The standard outlines precise methodologies for determining the performance of floors by quantifying the energy transferred through impact forces, such as those generated by walking or falling objects. It provides detailed guidance on the arrangement of test equipment, the selection of reference sources, and the calculation of standardized impact sound pressure levels. By defining uniform testing protocols, this specification facilitates consistent evaluation of acoustic performance across different construction scenarios, ensuring comparability of results between various laboratories and field studies. It serves as a vital reference for architects, builders, and acoustic consultants involved in designing and verifying the sound insulation properties of building elements, contributing to improved acoustic comfort in residential and commercial environments without making subjective judgments on the quality of specific projects.