Astm C 423 – 02a pdf free download

Standard Test Method for
Sound Absorption and Sound Absorption Coefficients by
the Reverberation Room Method1

This standard is issued under the fixed designation C 423; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.

Astm C 423 – 02a pdf free download

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