GB/T 25207-2010 in English

《GB/T 25207-2010火灾试验 表面制品的实体房间火试验方法》由TC113（全国消防标准化技术委员会）归口，主管部门为应急管理部。

1 Scope

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.

Foreword II
1 Scope
2 Normative references
3 Terms and Definitions
4 Principle
5 Fire Test Room
6 Ignition Source
7 Heat Flux Instrumentation in the Fire Room
8 System for Collecting the Combustion Products
9 Minimum Requirements for Instrumentation in the Exhaust Duct
10 System Performance
11 Preparation of Test Specimens
12 Test Procedure
13 Test Report
Annex A (Normative) Recommended Ignition Sources
Annex B (Informative) Alternative Ignition Sources
Annex C (Informative) Instrumentation of Test Room
Annex D (Informative) Design of Exhaust System
Annex E (Informative) Instrumentation in Exhaust Duct
Annex F (Informative) Calculation
Annex G (Informative) Specimen Configurations
Bibliography