ASTM C423-17
Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method

Standard No.

ASTM C423-17

Release Date

2017

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM C423-22

Latest

ASTM C423-23

Scope

1.1 This 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. 1.2 Field 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. 1.3 This test method includes information on laboratory accreditation (see Annex A1), asymmetrical screens (see Annex A2), and reverberation room qualification (see Annex A3). 1.4 The 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.

ASTM C423-17 Referenced Document

• ASTM C634 Standard Terminology Relating to Building and Environmental Acoustics*， 2022-10-01 Update
• ASTM E2235 Standard Test Method for Determination of Decay Rates for Use in Sound Insulation Test Methods*， 2024-04-22 Update
• ASTM E795 Standard Practices for Mounting Test Specimens During Sound Absorption Tests*， 2023-01-01 Update

ASTM C423-17 history

• 2023 ASTM C423-23 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 2022 ASTM C423-22 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 2017 ASTM C423-17 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 2009 ASTM C423-09a Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 2009 ASTM C423-09 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 2008 ASTM C423-08a Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 2008 ASTM C423-08 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 2007 ASTM C423-07a Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 2007 ASTM C423-07 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 2006 ASTM C423-06 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 2002 ASTM C423-02ae1 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 2002 ASTM C423-02a Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 2002 ASTM C423-02 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 2001 ASTM C423-01 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 2000 ASTM C423-00 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 1999 ASTM C423-99a Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
• 1984 ASTM C423-84A Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method