ASTM E1050-1998
管子、双扩音器和数字频率分析系统用传声材料的阻抗和吸收的试验方法

Standard Test Method for Impedance and Absorption of Acoustical Materials Using a Tube, Two Microphones, and a Digital Frequency Analysis System

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标准号

ASTM E1050-1998

发布日期

1998年

实施日期

废止日期

无

中国标准分类号

A59

国际标准分类号

91.120.20 (Acoustics in buildings. Sound insulatio

发布单位

US-ASTM

适用范围

1.1 This test method covers the use of an impedance tube and the use of a two-microphone method and a digital frequency analysis system for the measurement of normal incidence sound absorption coefficients and normal specific acoustic impedance ratios of materials.

1.2 This standard does not purport to address the safety problems associated with its use. It is the responsibility of the user of this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.