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ASTM WK7855

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Work Item: ASTM WK7855 - Revision of E90-04 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements


Active Standard: E90-09

Developed by Subcommittee: E33.03 | Committee E33 Home | Contact Staff Manager



1. Rationale

Recent measurements in several test facilities have shown that interchanging the roles of the source and receiving rooms - reversing the test direction - can give significant changes in tranmission loss and STC. E33.03 feels that the only way to deal with this behaviour is to require measurements in both directions.

Keywords

airborne sound transmission loss; flanking transmission; sound transmission coefficient; sound transmission loss; transmission loss; ICS Number Code 91.120.20 (Acoustics in buildings. Sound insulation)

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Work Item Status:
Date Initiated:4-26-2005
Technical Contact: Trevor R Nightingale

Item: 002
Ballot: E33.03 (07-02)
Status: Withdrawn From Balloting

Item: 005
Ballot: E33 (09-01)
Status: Ballot Item Approved as E90-2009 and Pending Publication

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