T/CECS 10144-2021 Steel-tape reinforced high molecular weight high density polyethylene(HMWHDPE)hollow profile spirally enwound structure wall pipe for drainage

GB/T 1033.1-2008 Plastics—Methods for determining the density of non-cellular plastics—Part 1:Immersion method,liquid pyknometer method and titration method GB/T 1040.2-2006 Plastics—Determination of tensile properties—Part 2:Test conditions for moulding and extrusion plastics GB/T 1040.2-2022 Plastics—Determination of tensile properties—Part 2:Test conditions for moulding and extrusion plastics GB/T 1632.3-2010 Plastics—Determination of the viscosity of polymers in dilute solution using capillary viscometer—Part 3:Polyethylenes and polypropylenes GB/T 1842-1999 Test method for environmental stress-cracking of polyethylene plastics GB/T 1842-2008 Plastics—Test method for environmental stress-cracking of polyethylene 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 2918-2018 Plastics—Standard atmospheres for conditioning and testing GB/T 3682.1-2018 Plastics—Determination of the melt mass-flow rate(MFR)and melt volume-flow rate(MVR)of thermoplastics—Part 1:Standard method GB/T 6111-2018 Thermoplastics piping systems for the conveyance of fluids—Determination of the resistance to internal pressure GB/T 6671-2001 Thermoplastics pipes-Determination of longitudinal reversion GB/T 7141-1992 Plastics—Methods of exposure to thermal air GB/T 7141-2008 Plastics—Methods of heat aging GB/T 8804.3-2003 Thermoplastic pipes—Determination of tensile properties—Part 3:Polyolefin pipes GB/T 8806-2008 Plastics piping systems—Plastics components—Determination of dimensions GB/T 8806-1988 Method for dimension measuring of plastic pipes GB/T 9341-2000 Plastics—Determination of flexural properties GB/T 9341-2008 Plastics—Determination of flexural properties GB/T 9345.1-2008 Plastics—Determination of ash—Part 1:General methods GB/T 9647-2003 Thermoplastics pipes—Determination of ring stiffness GB/T 9647-2015 Thermoplastics pipes—Determination of ring stiffness GB/T 11253-2007 Cold-rolled sheets and strips of carbon structural steels GB/T 11253-2019 Cold-rolled sheet and strip of carbon structural steels GB/T 11253-1989 Cold-rolled plain carbon andlow alloy structural steel sheets and strips GB/T 13021-1991 Determination for the carbon black content of polyethylene pipes and fittings by calcination and pyrolysis GB/T 13021-2023 Polyolefin pipes and fittings—Determination of carbon black content—Test method of alcination and pyrolysis GB/T 14152-2001 Thermoplastics pipes—Determination of resistance to external blows—Round-the-clock method GB/T 18042-2000 Thermoplastics pipes—Determination of creep ratio GB/T 19278-2018 General terms and their definitions of thermoplastic pipes,fittings and valves GB/T 19466.6-2009 Plastics—Differential scanning calorimetry(DSC)—Part 6:Determination of oxidation induction time(isothermal OIT)and oxidation induction temperature(dynamic OIT) GB/T 19472.2-2017 Polyethylene structure-wall piping systems for underground usage—Part 2:Polyethylene spirally enwound structure-wall pipes GB/T 21873-2008 Rubber seals—Joint rings for water supply,drainage and sewerage pipelines—Specification for materials GB/T 23257-2009 Polyethylene coating for buried steel pipeline GB/T 23257-2017 Polyethylene coating for buried steel pipeline GB/T 32679-2016 Ultra-high-molecular-weight polyethylene(PE-UHMW) resin GB/T 39385-2020 Plastics piping and ducting systems—Thermoplastics pipes—Determination of ring flexibility CJ/T 225-2011 Metal reinforced polyethylene(PE) spiral corrugated pipe for underground sewer YD/T 590.2-2005 Plastic jacket joint closure for telecommunication cable Part 2:Heat shrinkable joint closure GB/T 21873-2025 Rubber seals—Joint rings for water supply,drainage and sewerage pipelines—Specification for materials