T/SHPTA 041-2023 Modified polypropylene for optical wiring junction box

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 1040.2-2022 Plastics—Determination of tensile properties—Part 2:Test conditions for moulding and extrusion plastics GB/T 1634.1-2019 Plastics—Determination of temperature of deflection under load—Part 1:General test method GB/T 1843-1996 Plastics—Determination of izod impact strength GB/T 1843-2008 Plastics—Determination of izod impact strength GB/T 1844.1-2022 Plastics—Symbols and abbreviated terms—Part 1:Basic polymers and their special characteristics 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 7141-2008 Plastics—Methods of heat aging GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values 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 16422.2-2022 Plastics—Methods of exposure to laboratory light sources—Part 2:Xenon-arc lamps GB/T 17037.1-2019 Plastics—Injection moulding of test specimens of thermoplastic materials—Part 1:General principles,and moulding of multipurpose and bar test specimens GB/T 17037.4-2003 Plastic—Injection moulding of test specimens of thermoplastic materials—Part 4:Determination of moulding shrinkage GB/T 31838.2-2019 Solid insulating materials—Dielectric and resistive properties—Part 2:Resistive properties(DC methods)—Volume resistance and volume resistivity SJ/T 11363-2006 Requirements for concentration limits for certain hazardous substances in electronic information products SJ/T 11365-2006 SJ/T 11365-2006: Method for detecting toxic and harmful substances in electronic information products UL94　器件和器具零件用塑料材料的易燃性试验