This part of GB/T l8993--2003 stipulates the materials, Product classification, technical requirements, test methods, inspection rules and signs, packaging, transportation and storage. Together with Parts 1 and 2, this part applies to piping systems for industrial hot and cold water.
GB/T 18993.3-2003 history
2020GB/T 18993.3-2020 Chlorinated poly (vinyl chloride) (PVC-C) piping systems for hot and cold water installations—Part 3:Fittings
2003GB/T 18993.3-2003 Chlorinated poly(Vinyl chloride) piping systems for hot and cold water installations Part 3: Fittings