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ASTM International - ASTM C384-04(2016)

Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method

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Organization: ASTM International
Publication Date: 1 April 2016
Status: active
Page Count: 9
ICS Code (Acoustics in building. Sound insulation): 91.120.20
significance And Use:

5.1 The acoustical impedance properties of a sound absorptive material are related to its physical properties, such as airflow resistance, porosity, elasticity, and density. As such, the... View More

scope:

1.1 This test method covers the use of an impedance tube, alternatively called a standing wave apparatus, for the measurement of impedance ratios and the normal incidence sound absorption coefficients of acoustical materials.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Document History

ASTM C384-04(2016)
April 1, 2016
Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method
5.1 The acoustical impedance properties of a sound absorptive material are related to its physical properties, such as airflow resistance, porosity, elasticity, and density. As such, the measurements...
November 1, 2011
Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method
The acoustical impedance properties of a sound absorptive material are related to its physical properties, such as airflow resistance, porosity, elasticity, and density. As such, the measurements...
April 1, 2004
Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method
The acoustical impedance properties of a sound absorptive material are related to its physical properties, such as airflow resistance, porosity, elasticity, and density. As such, the measurements...
September 10, 2003
Standard Test Method for Impedance and Absorption of Acoustical Materials by the Impedance Tube Method
1.1 This test method covers the use of an impedance tube, alternatively called a standing wave apparatus, for the measurement of impedance ratios and the normal incidence sound absorption...
July 10, 1998
Standard Test Method for Impedance and Absorption of Acoustical Materials by the Impedance Tube Method
1.1 This test method covers the use of an impedance tube, alternatively called a standing wave apparatus, for the measurement of impedance ratios and the normal incidence sound absorption...
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