BS 3638:1963
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Method for the measurement of sound absorption coefficients (ISO) in a reverberation room
Hardcopy
23-07-2013
English
31-01-1964
Acoustic materials as wall or ceiling treatments, or equivalent absorption area of separate objects. Measurements of reverberation time of room (or decay rate of reverberant sound) before and after introduction of specimen. Size and shape of room, size and disposition of test specimen, methods of measuring reverberation time, computing results, frequencies, statement of results.
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