QC/T 1221-2025 Modified polypropylene door outer panels for automobile

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 1036-1989 Determination for coefficient of linear expansion of plastics GB/T 1036-2008 Test method for coefficient of linear thermal expansion of plastics between-30 ℃ and 30 ℃ with a vitreous silica dilatometer GB/T 1040.1-2006 Plastics—Determination of tensile properties—Part 1:General principles GB/T 1040.1-2018 Plastics—Determination of tensile properties—Part 1:General principles GB/T 1040.1-2025 Plastics—Determination of tensile properties—Part 1:General principles GB/T 1040.2-2022 Plastics—Determination of tensile properties—Part 2:Test conditions for moulding and extrusion plastics GB/T 1043.1-2008 Plastics—Determination of charpy impact properties—Part 1:Non-instrumented impact test GB/T 1634.2-2019 Plastics—Determination of temperature of deflection under load—Part 2:Plastics and ebonite GB/T 2918-2018 Plastics—Standard atmospheres for conditioning and testing GB/T 7124-1986 The method for determination of strength properties of adhesive in shear by tension loading(Metal to metal) GB/T 7124-2008 Adhesives—Determination of tensile lap-shear strength of rigid-to-rigid bonded assemblies GB/T 9341-2008 Plastics—Determination of flexural properties GB/T 9345.1-2008 Plastics—Determination of ash—Part 1:General methods GB/T 17037.4-2003 Plastic—Injection moulding of test specimens of thermoplastic materials—Part 4:Determination of moulding shrinkage QC/T 15-1992