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BS 476-7Standard Test Method for Building Products
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BS 476-7 Standard Test Method for Building Products
Firetc fire test center will provide British Standard BS 476-7 surface flammability test to Building Material.
For more ***ailed information about BS 476-7,
Please see: http://www.firetc.net/firetesting/show.***?itemid=672
BS 476-7 surface flammability test to Building Material--Standard
BS 476-7: Fire Tests on Building materials and structures �Method of test to ***ermine the classification of the surface spread of flame of products
BS 476-7 surface flammability test to Building Material--Test Procedure
Ignite the pilot flame.
Remove a specimen construction, including any backing boards, ***cers and filler pieces, from the conditioning atmosphere, and within 5 min insert it into the specimen holder in its standby position at 90Ê or more from the test position.
Within 5 s swing the specimen holder and specimen into the test position, and immediately start the timing mechanism, i.e. start the test.
Extinguish the pilot flame 1 min after the start of the test.
Terminate the test when the flame front reaches the 825 mm reference line, or after 10 min has elapsed, whichever is the shorter.
Swing the specimen holder into its standby position and remove the remains of the specimen construction. Clean any debris from the holder.
Repeat the procedures given in a) to f) above for each of the remaining specimen constructions.
BS 476-7 surface flammability test to Building Material �Brief
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 co***ring the end-use performances of essentially flat materials, composites or assemblies, which are used primarily as the exposed surfaces of walls or ceilings.
BS 476-7 surface flammability test to Building Material �Reference Standard
> BS 4 |
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FireTC Technology Service LTD
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Mr. Ron Liu |
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PowerLong Centre,Jiahe Rd |
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86 592 5056213 |
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86 592 5105807 |
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