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.
Số hiệu tiêu chuẩn
BS 3638:1963
Tên tiêu chuẩn
Method for the measurement of sound absorption coefficients (ISO) in a reverberation room
Ngày phát hành
1963-06-29
Tiêu chuẩn tương đương
ISO 354 NEQ
Từ khóa
Reverberation time * Acoustic measurement * Noise control (acoustic) * Reverberation rooms * Reverberation * Absorption (waves) * Acoustic properties and phenomena * Acoustic waves * Acoustic absorption
BS 3638:1963
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