BS 3638(1987) : AMD 7781
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 MEASUREMENT OF SOUND ABSORPTION IN A REVERBERATION ROOM
15-09-1993
23-11-2012
Gives a method of measuring the sound absorption coefficient of acoustical materials used as wall or ceiling treatments, or the equivalent sound absorption area of objects, such as furniture, persons or space absorbers, in a reverberation room. Not for measuring the absorption characteristics of weakly damped resonators. The results obtained can be used for comparison purposes and for design calculation with respect to room acoustics and noise control. BS AMD 7781 RENUMBERS THIS STANDARD TO BS EN 20354
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