Ul 94 is a plastics flammability standard released by the underwriters laboratories usa.
Best ul rated sheet plastics.
Some high performance plastics can be classified as flame resistant plastic flame retardant plastic non flamable plastic or inherently self extinguishing making them suitable for use where fire protection is an issue.
Overview of ul 94 flame classifications.
These materials consist of a sandwich type construction a metal and a plastic and have been tested for flammability to determine compliance with ul 94 the standard for safety of flammability of plastic materials for parts in devices and appliances testing only.
There are various standards which classify the flammability of plastics.
These small scale tests measure the propensity of a material to extinguish or spread flames once it becomes.
Ul 94 v 0 best of the best heavy duty fire retardant.
That is dramatic when compared to 60 seconds in a fire.
There are two separate tests and ratings for ul 94.
The standard classifies plastics according to how they burn in various orientations and part thicknesses from the lowest flame retardant to most flame retardant in six different classifications.
This test is meant to measure and describe the flammability of plastic materials in response to heat and flame.
The first determines the material s tendency either to extinguish or to spread the flame once the specimen has been ignited.