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GB 8624:2006 Building products fire testing
1．Standard -- GB 8624:2006 building products fire testing
GB 8624:2006 Classification for burning behavior of building materials and products
2. Standard Brief-- GB 8624:2006 building products fire testing
GB 8624:2006 This standard replaced GB 8624:1997, this amendment by the European Union standards EN 13501-1:2002.
The standard compared with the GB 86241997 major changes, the main changes are as follows:
- The standard of the paving and pipe insulation materials, combustion provides separately for classification, combustion performance levels by the subscript fl and L to distinguish between, respectively;
- Combustion properties of the material divided by the A-level (homogeneous materials), A-level (composite sandwich materials), B1, B2 and B3 into five levels A1, A2, B, C, D, E, F or AF
AFL1、AFL2、BFL、CFL、DFL 、EFL 、FFL or AL1、AL2、BL、CL、DL 、EL 、FL
3. GB 8624 the main concern:
Flammability classification：A1、A2、B、C、D、E、F or AFL1、AFL2、BFL、CFL、DFL 、EFL 、FFL or AL1、AL2、BL、CL、DL 、EL 、FL
Toxicity：T0、T1、T2
Smoke density：S1、S2、S3
dripping：D0、D1、D2
4. Test method and classification
4.1 Classes of reaction to fire performance for construction products excluding floorings
Class A1: According to GB/T 5464 and GB/T 14402; meet to the standards.
Class A2: According to GB/T 5464、GB/T 14402 and GB/T 20284; meet to the standards.
Class B、C、D: According to GB/T 20284、GB/T 20285、GB/T 8626; meet to the standards.
Class E: According to GB/T 8626; meet to the standards.
Class F: According to GB/T 8626; fail to the standards.
4.2 Classes of reaction to fire performance for floorings
Class AFL1: According to GB/T 5464及GB/T 14402; meet to the standards.
Class AFL2: According to GB/T 5464、GB/T 14402及GB/T 11785; meet to the standards.
Class BFL、CFL、DFL: According to GB/T 11785、GB/T 8626、GB/T 20285; meet to the standards.
Class EFL: According to GB/T 11785; meet to the standards.
Class FFL: According to GB/T 11785; meet to the standards.
4.3 Classes of reaction to fire performance for linear pipe thermal insulation products.
Class AL1: According to GB/T 5464 and GB/T 14402; meet to the standards.
Class AL2: According to GB/T 5464、GB/T 14402 and GB/T 20284; meet to the standards.
Class BL、CL、DL: According to GB/T 20284、GB/T 20285、GB/T 8626; meet to the standards.
Class EL: According to GB/T 8626; meet to the standards.
Class FL: According to GB/T 8626; fail to the standards.
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Testing to：
Fire standard
