This part of the standard provides uniform symbols for flame retardants added to plastics materials. The symbols are written with the abbreviated term ""FR"" and one or more succeding code numbers are given in clause 5. They are used in addition to the symbols for the plastics materials, for plastics material designation and for identification and marking of plastics products.
DS/EN ISO 1043-4:1999 history
2021DS/EN ISO 1043-4:2021 Plastics – Symbols and abbreviated terms – Part 4: Flame retardants (ISO 1043-4:2021)
1999DS/EN ISO 1043-4:1999 Plastics - Symbols and abbreviated terms - Part 4: Flame retardants