Fire tests on building materials and structures. Method of test to determine the classification of the surface spread of flame of products

Fire tests on building materials and structures. Method of test to determine the classification of the surface spread of flame of products. Defines a test for classifying surface spread of flame on building products into Classes 1, 2, 3 or 4. This page provides a structured summary, key provisions, and practical guidance on the application of BS 476-7:1997 to UK fire safety engineering, building design, and Building Safety Act compliance.