GB/T 30923-2022 Plastics—Polypropylene(PP)materials for meltblown

GB/T 30923-2014 Plastics—Polypropylene materials for meltblown

GB/T 24149.2-2017 Plastics—Polypropylene(PP) compound for automobile—Part 2: Instrument panel GB/T 1636-2008 Plastics—Determination of apparent density material that can be poured from a specified funnel GB/T 1844.1-1995 Symbols of plastics and resins—Part 1:Basic polymers and their special characteristics GB/T 1844.1-2008 Plastics—Symbols and abbreviated terms—Part 1:Basic polymers and their special characteristics GB/T 1844.1-2022 Plastics—Symbols and abbreviated terms—Part 1:Basic polymers and their special characteristics GB/T 2035-1996 Terms and definitions for plastics GB/T 2035-2008 Terms and definitions for plastics GB/T 2035-2024 Plastics—Vocabulary GB/T 2546.1-2006 Plastics—Polypropylene(PP) moulding and extrusion materials—Part 1:Designation system and basis for specifications GB/T 2546.1-2022 Plastics—Polypropylene (PP) moulding and extrusion materials—Part 1:Designation system and basis for specifications GB/T 2547-1981 Plastic resins—Sampling GB/T 2547-2008 Plastic resins—Sampling GB/T 2914-1999 Plastics—Homopolymer and copolymer resins of vinyl chloride-Determination of volatile matter(including water) GB/T 2914-2008 Plastics—Homopolymer and copolymer resins of vinyl chloride—Determination of volatile matter (including water) GB/T 2918-1998 Plastics—Standard atmospheres for conditioning and testing GB/T 2918-2018 Plastics—Standard atmospheres for conditioning and testing GB/T 3682.1-2018 Plastics—Determination of the melt mass-flow rate(MFR)and melt volume-flow rate(MVR)of thermoplastics—Part 1:Standard method GB/T 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 9345.1-2008 Plastics—Determination of ash—Part 1:General methods GB/T 9348-1988 Determination of number of impurities and foreign particles of polyvinyl chloride resins GB/T 9348-2008 Plastics—Poly(vinyl chloride) resins—Determination of number of impurities and foreign particles GB 15979-2002 Hygienic standard for disposable sanitary products GB 15979-2024 Hygienic requirements for disposable sanitary products GB/T 36214.4-2018 Plastics—Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography—Part 4:High-temperature method JB/T 5456-2016 JB/T 5456-2016 Technical Specification for Melting Flow Rate Tester SH/T 1541.1-2019 Plastic particle appearance test method - Part 1: Visual method JB/T 5456-1991 JBT 5456-1991 Melting flow rate meter technical specification JB/T 5456-2005 JB/T 5456-2005 Melting Point Tester for Fluidity Rate Meter - Technical Specification