The standard is similar with EN ISO 13823

Test principle

Consists of two wings at right angles to the vertical angle formed at the bottom of the sample exposed to the main burner flame produced by the flame produced by the burning of propane gas, propane gas burner through the sand box and generate (30.7 ± 20) kw heat output.

The combustion characteristics of the sample through the testing process 20min to Chek assessment. Performance parameters including: heat release, the amount of smoke, flame spread and burning drip lateral. Calculate the volume flow rate, heat release rate (HRR) and smoke production rate (SPR).

The testing and classification of building products GB/T 20284-2006 in the A2, B, C, D grading related.

And A2, B, C, D grade data

A2 level in GB / T 20284 FIGRA ≤ 120W / S and LFS <edge of the sample and THR600s ≤ 7.5MJ
B grade in the GB / T 20284 FIGRA ≤ 120W / S and LFS <edge of the sample and THR600s ≤ 7.5MJ
C grade in GB / T 20284 FIGRA ≤ 250W / S and LFS <edge of the sample and THR600s ≤ 15MJ
D grade in the GB / T 20284 FIGRA ≤ 750W / S
 

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