ASTM-C384 2022

$34.13

C384-04(2022) Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method

Published By	Publication Date	Number of Pages
ASTM	2022

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Categories: 91.120.20 - Acoustics in building. Sound insulation, ASTM

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Description

ASTM C384-04-Reapproved2022

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

ASTM C384

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

absorption; impedance; impedance ratio; impedance tube; normal incidence sound absorption coefficient; specific normal acoustic impedance;

ICS Code

ICS Number Code 91.120.20 (Acoustics in buildings. Sound insulation)

DOI: 10.1520/C0384-04R22

Additional information

Standard Title	C384-04(2022) Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method
Published Code	ASTM
Publication Date	2022
ICS Codes	91.120.20 - Acoustics in building. Sound insulation