Mechanical
Rheological
Heat resistance
Thermal analysis
Physical
Electrical
Combustion (Fire)
Flammability UL 94 HB
Flammability UL 94 V
Flammability UL 94-5 V
Electrical ignition
source
Ash content
Thermal aging
Weathering
Optical
Chemical resistance
Shrinkage
Standard:
ASTM D 3874
or corresponding standards


GWIT (Glow wire ignitability test)
HWI
HWI
This test simulates a case in which a conducting part, in direct contact with a plastic part, overheats due to excess current being passed through it. The time in seconds until the test material ignites is calculated.

Test set-up
coiler
Test criterion