ASTM Standard E477-20 Standard test method for laboratory measurements of acoustical and airflow performance of duct liner materials and prefabricated silencers
Publication Year
2020
Document Status
Current
Abstract
Specifies the laboratory testing of some of the acoustical properties of sound attenuating devices including duct liner materials, integral ducts, and in-duct absorptive straight and elbow silencers used in the ventilation systems of buildings.
Publisher Information
American Society for Testing and Materials
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