ASTM C384-03
Standard Test Method for Impedance and Absorption of Acoustical Materials by the Impedance Tube Method

Standard No.

ASTM C384-03

Release Date

2003

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM C384-04

Latest

ASTM C384-04(2022)

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 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.

1.3 The values stated in SI units are to be regarded as the standard.

ASTM C384-03 history

• 2022 ASTM C384-04(2022) Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method
• 2004 ASTM C384-04(2016) Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method
• 2004 ASTM C384-04(2011) Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method
• 2004 ASTM C384-04 Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method
• 2003 ASTM C384-03 Standard Test Method for Impedance and Absorption of Acoustical Materials by the Impedance Tube Method
• 1998 ASTM C384-98 Standard Test Method for Impedance and Absorption of Acoustical Materials by the Impedance Tube Method