IS 9901 Pt.8-1981

标准号：IS 9901 Pt.8-1981
发布日期：1982/9/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：This standard Part ( VIII) specifies a method for measuring the acoustical properties of floor coverings from the viewpoint of reducing impact noise transmission.1.2 This standard is applicable to all floor coverings, whether single or multi-layered, as installed on a standardized floor structure. In the case of multi-layered coverings, they may be factory-assembled or assembled at the test site. The test method applies only to laboratory measurement. It does not contain any provision that permits an assessment of the effective-ness of a floor covering in situ.