Fire protection classes according to DIN 4102

Flame retardant M 1 (French norm = B 1)

B 3 easily inflammable

B 2 normalentflammbar

B 1 flame retardant

B flammable

Non-flammable with organic and flammable components

A 2

Non-flammable without organic and flammable components

A 1

A Not flammable