DR 99408 CP
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
06-30-2017
08-04-1999
Proposes the adoption of ISO 140-9:1985 which provides a laboratory method of measuring the airborne sound insulation of a suspended ceiling with a plenum of defined height mounted above an acoustical barrier which separates two rooms of a specified test facility. Proposed as a Joint Australian/New Zealand Standard. Copies of ISO 140-9:1985 may be purchased from or viewed at any Standards Australia office or Standards New Zealand.
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