Fire doorsets C4

Any test evidence used to verify the fire resistance rating of a doorset or shutter should be
checked to ensure both of the following.
a. It adequately demonstrates compliance.
b. It is applicable to the complete installed assembly. Small differences in detail may significantly
affect the rating.
Until relevant harmonised product standards are published, for the purposes of meeting the
Building Regulations, products tested in accordance with BS EN 1634-1 (with or without pre-fire test
mechanical conditioning) that achieve the minimum performance in Table C1 will be deemed to
satisfy the provisions.