This standard specifies the color category code and product code, requirements, sample preparation, and test methods for special masterbatch for random copolymerized polypropylene (PP-R) piping systems for hot and cold water (hereinafter referred to as "masterbatch") , inspection rules and markings, packaging, transportation and storage. This standard applies to masterbatch prepared with random copolymerized polypropylene (PP-R) as the carrier resin for the production of polypropylene (PP-R) piping systems for hot and cold water.
QB/T 4884-2015 history
2015QB/T 4884-2015 Masterbatch of polypropylene random copolymer (PP-R) piping systems for hot and cold water installation