BS 476-3:1958 Fire tests on building materials and structures. External fire exposure roof test (No longer current but cited in Building Regulations guidance)
Designed to measure the resistance of roofs to penetration by fire after radiation and flame exposure. To measure the distance of spread of flame on the outer surface of the roof.
Superseded by BS 476-3:1975.
British Standards Institution
With over 100 years of experience the British Standards Institute is recognised as the UK’s National standards body. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.
389 Chiswick High Road