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2024-03-15

Chinese Standard: GB8624 -- Combustion Performance Classification of Building Materials and Products

Chinese Standard: GB8624 -- Combustion Performance Classification of Building Materials and Products

The following content will explain the flame retardant test of building materials and the fire test standard GB 8624 Chinese standard:
 

GB8624 Combustion Performance Classification of Building Materials and Products - Standard Name: 

  • GB8624-2006: Combustion performance classification of building materials and products  

  • GB 8624-2006: Classification for burning behavior of building materials and products

 

GB8624 Combustion Performance Classification of Building Materials and Products - Standard Overview:

  • In the more than ten years since its implementation, GB8624 has served as a guideline for grading the combustion performance of China's building materials and some specific materials used inside buildings. It evaluates the fire performance of materials, guides fire safety design, implements fire safety supervision, and implements fire protection design specifications It has played an important role and produced significant social and economic benefits. 

GB8624 Combustion Performance Classification of Building Materials and Products - Standard Scope of Application: 

  • GB8624 proposes a combustion performance classification procedure for all building materials and products. Architectural products are considered in their final form of application.

  • GB8624 is applicable to two types of building products: floor coverings;

Building products other than floor coverings.
 
GB8624 Combustion Performance Classification of Building Materials and Products - Standard Analysis:  
Building products other than floor coverings
classification:
A1,A2, B,C,D,E,F
Level F Tested according to GB/T 8626 but failed to meet the requirements of Level E.
Level E tested according to GB/T 8626 and meets the requirements
Level D, C, B tested according to GB/T 8626 and GB/T 20284 and meet the requirements
Level A2 : conducted according to GB/T 20284 and GB/T 5464 or GB/T 14402
Level A1 tested according to GB/T 5464 and GB/T 14402 and meets the requirements
Flooring and floor covering materials
classification:
A1fl ,A2fl ,Bfl,Cfl,
Dfl,Efl,Ffl
Level F fl : tested according to GB/T 8626 but failed to meet the requirements of Level E
fl level: tested according to GB/T 8626 and meets the requirements
fl , C fl , B fl level: tested according to GB/T 8626 and GB/T 11785 and meet the requirements
A2 fl level : according to GB/T 11785 and GB/T 5464 or GB/T 14402
A1 fl : tested according to GB/T 5464 and GB/T 14402 and meets the requirements

GB8624 Combustion Performance Classification of Building Materials and Products - Specific Material Application Scope 

  • Sound insulation and heat insulation materials (mineral wool boards, glass wool, plastic parts, etc.) 

  • (curtains, etc.) 

  • Floor paving materials (bamboo flooring, wooden flooring, plastic flooring, carpet, rubber flooring, etc.) 

  • fittings (air conditioning pipes, etc.) 

GB8624 Combustion Performance Classification of Building Materials and Products - Related Reference Standards 

  • GB/T 5464 : Combustion performance test of building products—Non-combustibility test (idt ISO 1182) 

  • GB/T 5907 : Fire safety vocabulary Part 2: Fire test terminology (mod ISO 13943) 

  • GB/T 8626 : Test method for flammability of building materials 

  • GB/T 11785 : Determination of combustion properties of floor covering materials - Radiant heat source method (idt ISO 9239-1) 

  • GB/T 14402 : Test method for combustion heat value of building materials (neq ISO 1716) 

  • GB/T 20285 : Material smoke toxicity hazard classification 

  • GB/T 20284 : Single combustion test (SBI) of building materials or products (idt EN 13823) 

  • EN 13238 : Testing of combustion properties of building products—General provisions for conditioning procedures and selection of base materials 

 

GB8624 Combustion Performance Classification of Building Materials and Products – Related Similar Standard Tests 

  • EN 13501-1: Fire classification of building products and components Part 1: Classification using test data on reaction to fire 

  • DIN 4102-1: Fire performance of building materials and components Part 1: Classification levels of building materials requirements and tests 

  • NF P 92-501: French material flame retardant fire test M level determination - rigid materials (M0, M1, M2, M3, M4) 

  • NF P 92-503: French material flame retardant fire test M level determination - flexible materials (M0, M1, M2, M3, M4) 

  • BS 476: Flame retardant test of building materials, fire test 


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