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

ASTM-C384 - 2004 R16 EDITION - CURRENT
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Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method
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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.

Keywords

absorption; impedance; impedance ratio; impedance tube; normal incidence sound absorption coefficient; specific normal acoustic impedance;; ICS Number Code 91.120.20 (Acoustics in buildings. Sound insulation)

To find similar documents by ASTM Volume:

04.06 (Thermal Insulation; Building and Environmental Acoustics)

To find similar documents by classification:

91.120.20 (Acoustics in building. Sound insulation Acoustic measurements and noise abatement in general, see 17.140.01 Sound insulating materials, see 91.100.60)

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Document Number

ASTM-C384-04(2016)

Revision Level

2004 R16 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

April 1, 2016

Document Type

Test Method

Page Count

9 pages

Committee Number

E33.01