Technical guide
FR classes explained
EN 45545-2, FMVSS 302, UL94 and VDA 270 at a glance.
Updated: On request
EN 45545-2
Fire protection for railway vehicles. Hazard levels HL1 to HL3 and requirement sets R1 to R26.
FMVSS 302
US flammability standard for vehicle interior materials, measured as horizontal burn rate in mm/min.
UL94
Plastics flammability. Foam classes HF-1, HF-2 and HBF.
VDA 270
Odor assessment of automotive interior materials, graded 1 to 6.