IS Title/आईएस शीर्षक:
Measurement of Sound Insulation in Buildings and of Building Elements: Part 9 Laboratory Measurement of Room-to-Room Airborne Sound Insulation of a Suspended Ceiling with a Plenum Above it
Superseding IS/सुपरसीडिंग आईएस:
None
Degree of Equivalence/समतुल्यता स्तर:
Modified/Technically Equivalent
Number of Revisions/पुनरीक्षणों की संख्या:
New Standard
Number of Amendments/संशोधनों की संख्या:
No amendment issued