Degree

Item

Degree

Item

A

None-combustion

B1

Hard-combustion

B2

Combustion

B3

Combustible

Degree

Material

The Combustion Performance Indicators

None-combustion

Class A Material

According to GB/T8625 test, the average length of the remaining≤35cm (including any residual specimen length≥20cm) for each test and average flue gas temperature peak≤150℃, no specimen back burner the scene;

According to GB/T8627 test, their smoke density levels (SDR)≤15;

According to GB/T14002 and GB/T14403 test, its calorific value≤4.2MJ/kg, and the specimen thermal emission per unit area≤16.8MJ/m2;

Toxicity materials combustion flu gas of the entire non-lethal concentration of≥25 mg/L.

Hard-combustion

Class B1 Material

According to GB/T8626 test, its combustion properties should be met GB/T8626, and does not allow any dropping of combustion burn the filter paper;

According to GB/T8625 test, the average of each specimen remaining length≥15cm (including any residual specimen length≥0cm), and average peak temperature of gas≤200℃in each test.

According to GB/T8627 test, their smoke density levels (SDR)≤75.