NF T53-002-1:1999 Plastics. Unplasticized poly(vinyl chloride) (PVC-U) moulding and extrusion materials. Part 1 : designation system and basis for specifications.
1999NF T53-002-1:1999 Plastics. Unplasticized poly(vinyl chloride) (PVC-U) moulding and extrusion materials. Part 1 : designation system and basis for specifications.
1985NF T53-002:1985 PLASTICS. UNPLASTICIZED COMPOUNDS OF HOMOPOLYMERS AND COPOLYMERS OF VINYL CHLORIDE. DESIGNATION.