BS 2750-9:1987
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Measurement of sound insulation in buildings and of building elements. Method for laboratory measurement of room-to-room airborne sound insulation of a suspended ceiling with a plenum above it.
Hardcopy
English
27-02-1987
23-12-2023
National foreword
Committees responsible
Method
1. Scope and field of application
2. References
3. Definitions
4. Measuring equipment
5. Test arrangement
6. Test procedure and evaluation
7. Precision
8. Statement of results
9. Test report
Annex
Example of a test procedure
Figure
1. Cross-section and plan of the test facility
Gives 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 and simulates a pair of horizontally adjacent, typical rooms sharing a common suspended ceiling system, plenum space and a dividing wall. May be extended to include study of composite ceiling systems with other components such as luminaires and ventilating systems and auxiliary systems, such as material used either as plenum barriers or as backing for the ceiling. Includes example of a test procedure, illustrates cross section and plan of the test facility. ALSO NUMBERED AS BS EN 20140 PT9
| DevelopmentNote |
Superseded and renumbered by BS EN 20140-9 (07/2004)
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| DocumentType |
Standard
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| Pages |
0
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| PublisherName |
British Standards Institution
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| Status |
Withdrawn
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| SupersededBy |
| Standards | Relationship |
| ISO 140-9:1985 | Identical |
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