This standard specifies the test apparatus, measuring device and test procedure for full-scale room fire test for surface products.
This standard is applicable to products that for some reason cannot be tested in a small laboratory scale, for example thermoplastic materials, the effect of an insulating substrate, joints, surfaces with great irregularity.
This standard is not intended to evaluate the fire resistance of a product.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 5907 Fundamental Terminology of Fire Protection — Part 1 )
GB 8624-2006 Classification for Burning Behavior of Building Materials and Products
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB/T 5907 and the following apply.
3.1
assembly
fabrication of materials and/or composites, for example, sandwich panels
Note: An assembly may include an air gap.
3.2
composite
combination of materials which are generally recognized in building construction as discrete entities, for example, coated or laminated materials
3.3
exposed surface
that surface of the product subjected to the heating conditions of the test
3.4
material
single substance or uniformly dispersed mixture, for example, metal, stone, timber, concrete, mineral fibre, polymers
3.5
product
material, composite or assembly about which information is required
3.6
specimen
representative piece of the product which is to be tested together with any substrate or treatment
Note: The specimen may include an air gap.
3.7
surface product
any part of a building that constitutes an exposed surface on the interior walls and/or the ceiling such as panels, tiles, boards, wall papers, sprayed or brushed coatings
4 Principle
The potential for fire spread to other objects in the room, remote from the ignition source, is evaluated by measurements of the total heat flux incident on a heat flux meter located on the centre of the floor.
