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BS 93 specifies the following:
Who is ISO 23116 for
two microphone locations and a digital frequency analysis system for the determination of the sound absorption coefficient of sound absorbers for normal sound incidence
It specifies the following methods:
— flat belts for extending structure drive systems
Test methods for determining the contribution to the fire resistance of structural members - Horizontal protective membranes Ingestion-build-48974 BS 93 specifies the following:1 Scope This document specifies a test method for determining the ability of a horizontal protective membrane, when used as a fire resistant barrier, to contribute to the fire resistance of standard horizontal structural building members as defined in 6. 4. 2. Test of horizontal protective membrane installed under a specific non standard floor should be tested according to EN 1365 2. This document contains the fire test which specifies the tests which