ASTM E477-06a被替代
Standard Test Method for Measuring Acoustical and Airflow Performance of Duct Liner Materials and Prefabricated Silencers
出版：American Society for Testing and Materials
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基本信息
標準編號： ASTM E477-06a
發布時間：2006/5/1 0:00:00
標準類別：Standard
出版單位：American Society for Testing and Materials
標準頁數：11
標準簡介
CONTAINED IN VOL. 04.06, 2007Deals with laboratory testing of integral ducts, duct liner materials, and in-duct absorptive elbow and straight silencers for ventilation systems in buildings. Outlines methods for measuring acoustical insertion loss, airflow generated noise, and pressure drop as a function of airflow. Reactive mufflers and those designed other than for use in ventilation systems, are not included.
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