供应BS476-7
烧等级。BS 476-7主要用于测定墙面和吊顶暴露表面的火焰延伸。
BS476-7: Fire Tests on Building materials and structures Method of test to determine the classification of the surface spread of flame of products scope:This Part of BS 476 specifies a method of test for measuring the lateral spread of flame along the surface of a specimen of a product orientated in the vertical position under opposed flow conditions, and a classification system based on the rate and extent of the spread of flame.
LED
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