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ASTM E2235-03

Historical Revision

Standard Test Method for Determination of Decay Rates for Use in Sound Insulation Test Methods

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1.1 This test method covers the measurement of sound decay rate in rooms and the calculation of the sound absorption of the room and its contents. The sound absorption so calculated may be used in calculations in sound insulation test methods.

1.2 The method shall be used only in conjunction with other test methods where the logarithm of the sound absorption is used in formulas. It is not sufficiently precise for use in situations where room sound absorption is to be used without taking logarithms.

1.3 For laboratory measurements of the sound absorption of materials and objects, Test Method C 423 should be used.

1.4 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.


SDO ASTM: ASTM International
Document Number E2235
Publication Date April 10, 2003
Language en - English
Page Count 4
Revision Level 03
Supercedes
Committee E33.01
Publish Date Document Id Type View
April 1, 2004 E2235-04E01 Revision
April 1, 2004 E2235-04 Revision
April 10, 2003 E2235-03 Revision
April 1, 2020 E2235-04R20 Reaffirmation
April 1, 2012 E2235-04R12 Reaffirmation