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Hlavní stránka>BS 476-3:2004+A2:2007 Fire tests on building materials and structures Classification and method of test for external fire exposure to roofs
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sklademVydáno: 2007-04-30
BS 476-3:2004+A2:2007 Fire tests on building materials and structures Classification and method of test for external fire exposure to roofs

BS 476-3:2004+A2:2007

Fire tests on building materials and structures Classification and method of test for external fire exposure to roofs

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Označení normy:BS 476-3:2004+A2:2007
Počet stran:16
Vydáno:2007-04-30
ISBN:0 580 43794 9
Status:Standard
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BS 476-3:2004+A2:2007


This standard BS 476-3:2004+A2:2007 Fire tests on building materials and structures is classified in these ICS categories:
  • 13.220.50 Fire-resistance of building materials and elements

The tests given in this British Standard are designed to enable measurement of:

  1. capacity of a representative section of a roof to resist penetration by fire when the external surface is exposed to radiation and flame; and

  2. 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.

#An additional test for rooflights is given in Annex C.$


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