BS476 Part 3: Classification and method of test for external fire exposure to roofs
BS476 Part 3: Classification and method of test for external fire exposure to roofs
BS 476-3 Fire tests on building materials and structures – Standard
BS476-3: Fire tests on building materials and structures — Part 3: Classification and method of test for external fire exposure to roofs
BS 476-3 Fire tests on building materials and structures –Scope
The tests given in this British Standard are designed to enable measurement of:
a) Capacity of a representative section of a roof to resist penetration by fire when the external surface is exposed to radiation and flame; and
b) Distance of the spread of flame on the outer surface of the roof covering under certain conditions.
Roofs are graded according to the angle at which they are tested, the time for which they resist penetration by fire, and the distance of superficial spread of flame on their external surface.
BS 476-3 Fire tests on building materials and structures – Relative Standard
- BS 476: Fire tests on building materials and structures
- 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
- EN 13501-1: Fire classification of construction products and building elements- Part1:Classification using data from reaction to fire tests
- AS 1530：Methods for fire tests on building materials，components and structures
- AS/NZS 1530.1：Methods for fire tests on building materials，components and structuresCombustibility test for materials
- AS/NZS 1530.2：Methods for fire tests on building materials，Components and structures –Test for flammability of materials
- GB 8624: Classification for burning behavior of building materials and products
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