BSI BS 476-7: Fire Tests on Building Materials and Structures Part 7: Method of Test to Determine the Classification of the Surface Spread of Flame of Products
SDO: BSI: British Standards Institution
DOD Adopted ANSI Approved Approved
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. It provides data suitable for comparing the end-use performances of essentially flat materials, composites or assemblies, which are used primarily as the exposed surfaces of walls or ceilings.
Annex A gives guidance to operators carrying out this method of test. Annex B discusses the effect of thermal characteristics on the performance of assemblies and gives advice on the construction and preparation of test specimens. Annex C gives information on the validation of this method.
NOTE. The test results relate only to the behaviour of the test specimens of the product under the particular conditions of test; they are not intended to be the sole criterion for assessing the potential fire hazard of the product in use.
- Construction materials
- Construction systems parts
- Fire tests
- Surface spread of flame
- Flame-spread classifications
- Fire-test classifications
- Structural fire protection
- Fire safety in buildings
- Test specimens
- Specimen preparation
- Test equipment
- Testing conditions
- Classification systems
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