CJ/T 225-2011 Metal reinforced polyethylene(PE) spiral corrugated pipe for underground sewer

CJ/T 225-2006 Metal reinforced Polyethylene (PE) spirally corrugated pipe for underground sewer

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 14152-2001 Thermoplastics pipes—Determination of resistance to external blows—Round-the-clock method GB/T 228-2002 Metallic materials—Tensile testing at ambient temperature 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 228.2-2015 Metallic materials—Tensile testing—Part 2:Method of test at elevated temperature GB/T 228.3-2019 Metallic materials—Tensile testing—Part 3:Method of test at low temperature GB/T 228.4-2019 Metallic materials—Tensile testing—Part 4:Method of test in liquid helium 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 1633-2000 Plastics—Thermoplastic materials—Determination of Vicat softening temperature(VST) 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 2918-1998 Plastics—Standard atmospheres for conditioning and testing GB/T 2918-2018 Plastics—Standard atmospheres for conditioning and testing GB/T 3682-2000 Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics 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 3682.2-2018 Plastics—Determination of the melt mass-flow rate(MFR)and melt volume-flow rate(MVR)of thermoplastics—Part 2:Method for materials sensitive to time-temperature history and/or moisture GB/T 5470-1985 Test method for brittleness temperature of plastics by impact GB/T 5470-2008 Plastics—Determination of the brittleness temperature by impact GB/T 6111-2003 Thermoplastics pipes for the conveyance of fluids-Resistance to internal pressure—Test method GB/T 6111-2018 Thermoplastics piping systems for the conveyance of fluids—Determination of the resistance to internal pressure GB/T 8804.3-2003 Thermoplastic pipes—Determination of tensile properties—Part 3:Polyolefin 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 17391-1998 Test method for thermal stability of polyethylene pipes and fittings 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 18042-2000 Thermoplastics pipes—Determination of creep ratio GB/T 19472.2-2004 Polyethylene structure-wall piping system for underground usage—Part 2:Polyethylene Spirally enwound structure-wall pipes GB/T 19472.2-2017 Polyethylene structure-wall piping systems for underground usage—Part 2:Polyethylene spirally enwound structure-wall pipes GB/T 19789-2005 Packaging material—Test method for oxygen gas permeability characteristics of plastic film and sheeting—Coulometric sensor GB/T 19789-2021 Packaging material—Test method for oxygen gas permeability characteristics of plastic film and sheeting—Coulometric sensor GB/T 1633-2025 Plastics—Thermoplastic materials—Determination of Vicat softerning temperature(VST)