Flammability UL 94 5V

500 W, 125 mm Vertical

This method is used to determine the UL 94-5VA and -5VB flammability ratings.

The test evaluates both the flammability of the test specimen and any holes that are formed in sheets.

Pre-treatment:
2 days / 23 °C / 50 % relative humidity.
7 days / 70 °C / hot air oven

 

Flammability rating UL 94
Test criteria (test specimens) 5 VA 5 VB
Burning and afterglow times of specimens after fifth flame application (s) ≤60 ≤60
Dripping of burning specimens no no
Hole formation no yes