ASTM C 423 : 2017
Superseded
View Superseded by
Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
English
06-02-2017
12-05-2023
| Committee |
E 33
|
| DocumentType |
Test Method
|
| Pages |
11
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
1.1This test method covers the measurement of sound absorption in a reverberation room by measuring decay rate. Procedures for measuring the absorption of a room, the absorption of an object, such as an office screen, and the sound absorption coefficients of a specimen of sound absorptive material, such as acoustical ceiling tile, are described.
1.2Field Measurements—Although this test method covers laboratory measurements, the test method described in 4.1 can be used for making field measurements of the absorption of rooms (see also 5.5). A method to measure the absorption of rooms in the field is described in Test Method E2235.
1.3This test method includes information on laboratory accreditation (see Annex A1), asymmetrical screens (see Annex A2), and reverberation room qualification (see Annex A3).
1.4The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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.
A newer version of this standard is available.
View Current Edition
Please Login or Create an Account so you can add users to your Multi user PDF Later.
Important note : All end users must be registered with an Account prior to user licenses being assigned.
Users cannot be edited or removed once added to your Multi user PDF.