Over deze norm
1.1 This specification describes the construction and installation of standard reference specimens for quality control of laboratory sound transmission loss measurements using Test Method .
1.2 Laboratories may choose to construct and test all of the reference specimens described here or only a subset. Specific specimens may be required by a test method or an accrediting agency.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
|Engelse titel||Standard Specification for Reference Specimen for Sound Transmission Loss|