How to prepare samples for application of color coated steel sealing plates to BS 476-3?

BS 476-3 It's a British standard , It is mainly aimed at the fire test of the structure of the exposed part of the roof of building materials . Which structure is the color coated steel sealing plate used in the building ？

BS 476-3 It needs to be spliced according to the sample splicing method in the standard , Splice the sample into 836mmx836mm. The splicing methods of each layer are different , Finally, it's put together into 836mmx836mmx4pcs.

Standard full name ：

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 test of building materials and components - Fire test of exposed parts of roof

Measurement basis ：

a） When the external surface is exposed to radiation and flame , The ability of a roof of equivalent section to resist flame penetration ;

b） Under certain conditions , The flame propagation distance of the outer surface of the roof covering ;

BS 476 Other standards ：

BS 476-4： Fire test of building materials and structures - Material non flammability test

BS 476-5： Test method for ignitability of building materials

BS 476-6： Fire test of building materials and components . The first 6 part : Test method for fire spread of products

BS 476-7： Fire test of building materials and components . The first 7 part : Test method for determining the classification of flame surface spread of products

BS 476-20： Fire test of building materials and components . The first 20 part : Test method for fire resistance of building components ( The general principle )

BS 476-21： Fire test of building materials and components . The first 21 part : Test method for fire resistance of load-bearing components

BS 476-22： Test method for fire protection of non loaded building elements

BS 476-23： Fire test of building materials and components . The first 23 part : Test method for apportionment of fire resistance of components to components

Fire protection standard for other building materials ：

EN 13501-1: Fire classification of building products and components Part I ： Reaction data to fire classification test

DIN 4102-1: Fire performance of building materials and components Part I ： Classification and grade of requirements and tests for building materials

NF P 92-501: Flame retardant and fireproof test of French materials M Grade determination － Rigid materials

NF P 92-503: Flame retardant and fireproof test of French materials M Grade determination － Flexible materials

GB8624: Classification of combustion performance of building materials and products

JJ2022