UL 1446

Standard of safety systems for insulating materials. This Standard tests different components of an electrical system’s insulation and tests them for thermal stability. Materials can be divided further into temperature classes, separated by letter. 

UL 94

Standard for safety of Flammability of Plastic Materials for Devices, measures a materials’ ability to resist catching fire in the presence of an open flame. Ranks from HB at the lowest, to 5VA at the highest resistance to flammability.