UL Thermoplastics Testing Center - Flammability UL 94-5 V

Standards for
flammability UL 94-5VUL 94
On request:
(IEC) DIN EN 60695-11-20
or equivalent standards

Animation: Flammability UL 94-5V (sheet)

Animation: Vertical flame test, flammability UL 94-5V
(test specimen)

Flammability UL 94 - 5V

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

It evaluates both the burning and afterglow times and any holes that are formed as well as dripping of the burning test specimen.

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

Test criteria
Hole formation	no	yes

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

Test criteria (sheets)
Hole formation	no	ja