GB/T 18997.2-2020 Plastic/aluminum/plastic composite pressure pipes—Part 2:Composite pipes butt-welded by aluminum pipe

GB/T 18997.1-2020 Plastic/aluminum/plastic composite pressure pipes—Part 1:Composite pipes overlap-welded by aluminum pipe

GB/T 18997.2-2003 Polyethylene/Aluminum/Polyethylene composite pressure pipe—Part 2:PE/AL/PE pipe butt-welded by aluminum pipe

GB/T 6111-2018 Thermoplastics piping systems for the conveyance of fluids—Determination of the resistance to internal pressure GB/T 18742.2-2017 Polypropylene(PP) piping systems for hot and cold water installations—Part 2:Pipes GB/T 18997.1-2020 Plastic/aluminum/plastic composite pressure pipes—Part 1:Composite pipes overlap-welded by aluminum pipe GB/T 19278-2018 General terms and their definitions of thermoplastic pipes,fittings and valves GB/T 228.1-2010 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.1-2021 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2918-1998 Plastics—Standard atmospheres for conditioning and testing GB/T 2918-2018 Plastics—Standard atmospheres for conditioning and testing GB/T 8806-2008 Plastics piping systems—Plastics components—Determination of dimensions GB/T 15560-1995 Standard test method for short-time hydraulic failure and resistance to constant internal pressure of the plastics pipes for the transport of fluids GB/T 17219-1998 Standard for safety evaluation of equipment and protective materials in drinking water system GB/T 18474-2001 Pipes and fittings made of crosslinked polyethylene(PE-X)—Estimation of the degree of crosslinking by determination of the gel content GB/T 18742.1-2002 Polypropylene piping systems for hot and cold water installations—Part 1:General GB/T 18742.1-2017 Polypropylene(PP) piping systems for hot and cold water installations—Part 1:General GB/T 18991-2003 Thermoplastics pipes and fittings for hot and cold water systems GB/T 18992.2-2003 Crosslinked polyethylene(PE-X) piping systems for hot and cold water installations—Part 2:Pipes GB/T 19993-2005 Thermoplastics piping systems for hot and cold water supply—Test method for the resistance of pipes and fittings mounted assemblies to thermal cycling GB/T 8806-1988 Method for dimension measuring of plastic pipes GB/T 17219-2025 Hygienic safety evaluation of distribution equipment,protective materials and treatment materials in drinking water system