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Polyurethane foam retardant standard

 

GB 8624 《Classification for burning behavior of building materials and products

1997Edition

Non-combustible Class A

Flame retardant B1 level

Combustible class B2

Flammable class B3

2006Edition

Noncombustible A1, A2 level

Flame B, C grade

Combustible D, E class

Flammable F grade

2012Edition

Non-combustible Class A

Noncombustible A1, A2 level

Flame retardant B1 level

Flame B, C grade

Oxygen index ≥30%

Combustible class B2

Combustible D, E class

Oxygen index ≥26%

Flammable class B3

Flammable F grade

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