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

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-11-2019

Publisher

American Society for Testing and Materials

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

1.2Laboratory Accreditation—A procedure for accrediting a laboratory for performing this test method is given in Annex A1.

1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4This 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.

1.5This 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.

Committee	E 33
DocumentType	Test Method
Pages	14
PublisherName	American Society for Testing and Materials
Status	Current
Supersedes	ASTM E 1050 : 2012

ASTM E 2813 : 2018	Standard Practice for Building Enclosure Commissioning
ASTM E 1179 : 2013 : R2019	Standard Specification for Sound Sources Used for Testing Open Office Components and Systems
ASTM C 634 : 2013 : EDT 1	Standard Terminology Relating to Building and Environmental Acoustics
ASTM E 2611 : 2019	Standard Test Method for Normal Incidence Determination of Porous Material Acoustical Properties Based on the Transfer Matrix Method

ASTM C 384 : 2004 : R2022	Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method
ASTM C 634 : 2022	Standard Terminology Relating to Building and Environmental Acoustics
ASTM C 634 : 2013 : R2021	Standard Terminology Relating to Building and Environmental Acoustics
ASTM C 384 : 1998	Standard Test Method for Impedance and Absorption of Acoustical Materials by the Impedance Tube Method
ASTM C 384 : 2004 : R2016	Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method