ASTM E 90 - 09 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements

American Society for Testing and Materials (ASTM). Current edition approved July 1, 2009. Published August 2009. 15 р. This test method covers the laboratory measurement of airborne sound transmission loss of building partitions such as walls of all kinds, operable partitions, floor-ceiling assemblies, doors, windows, roofs, panels, and other space-dividing elements.
Laboratories are designed so the test specimen constitutes the primary sound transmission path between the two test rooms