BSI BS 476 PART 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
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BSI BS 476 PART 7 Document Information:
Title
Fire Tests on Building Materials and Structures Part 7: Method of Test to Determine the Classification of the Surface Spread of Flame of Products
Brandschutztechnische Pruefungen an Baustoffen und Bauten. Verfahren zur Klassifizierung der Flammenausbreitungsgeschwindigkeit an der Erzeugnisoberflaeche
Analyses d'incendie sur des materiaux et structures de construction. Methode d'analyse de determination de la classification de la surface de propagation de la flame sur les produits
British Standards Institution
Publication Date:
Jan 15, 1997
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. 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.
Keywords:
- Construction materials
- Construction systems parts
- Walls
- Ceilings
- Fire tests
- Surface spread of flame
- Flame-spread classifications
- Fire-test classifications
- Structural fire protection
- Fire safety in buildings
- Test specimens
- Dimensions
- Design
- Specimen preparation
- Test equipment
- Testing conditions
- Calibration
- Classification systems
- Radiation
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