What Is UL94?
UL94 is the most widely used flammability standard for plastic materials, specifically for components in devices and appliances.
UL94 Rating Levels
- V-0: Stops burning within 10 seconds, no drip
- V-1: Stops burning within 30 seconds, no drip
- V-2: Stops burning within 30 seconds, drips allowed
- HB: Slow burn, horizontal testing
Automotive Requirements
Many automotive applications require V-0 or V-50 ratings, especially for interior components.
Electronics Compliance
IEC 60335-1 requires V-0 for many portable devices. Check your specific application standards.

