GB/T 3402.1-2005
Plastics Homopolymer and copolymer resins of vinyl chloride -- Part 1: Designation system and basis for specifiations
KS M ISO 3672-1-2007(2017)
Plastics-Unsaturated-polyester resins(UP-R)-Part 1:Designation system
EN ISO 24024-1:2021
EN ISO 1060-1:1999