ASTM C 384 : 2004 : R2011
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method
Hardcopy , PDF
11-11-2014
English
01-11-2011
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 04.06, 2016 Defines 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.
| Committee |
E 33
|
| DocumentType |
Test Method
|
| Pages |
9
|
| ProductNote |
Reconfirmed 2011
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
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 C 423 : 2017 : REDLINE | Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method |
| ANSI/ASA S1.6 : 2016 | PREFERRED FREQUENCIES AND FILTER BAND CENTER FREQUENCIES FOR ACOUSTICAL MEASUREMENTS |
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