The flame retardant properties of protective clothing fabrics should meet the requirements in the table below.
Flame retardant performance requirements of GB8965.2-2009
|
Performance parameters |
Welding suit protection level |
|||
|
A |
B |
C |
||
|
Flame retardant performance (after 50 washes) |
Burn Features |
The combustion cannot spread to the top or both sides of the sample. The sample cannot melt through to form holes. The sample cannot produce flaming combustion or molten fragments |
||
|
Afterburning time/s |
≤2 |
≤4 |
≤5 |
|
|
Smoldering time/s |
≤2 |
≤4 |
≤5 |
|
|
Damaged length/mm |
≤50 |
≤100 |
≤150 |
|
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