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International Standard List: Thermoplastic materials

Title Standard No. Implemented On
Polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) material for charging spot housing of electric vehicleGB/T 39710-20202021-11-1
Plasticized poly(vinyl chloride) compounds for transfusion (infusion) equipmentGB/T 15593-20202021-10-1
Plastics—Mixtures of polypropylene (PP) and polyethylene (PE) recyclate derived from PP and PE used for flexible and rigid consumer packaging—Part 1:Designation system and basis for specificationGB/T 39690.1-20202021-7-1
Plastics—Determination of the viscosity of polymers in dilute solution using capillary viscometers—Part 4:Polycarbonate(PC) moulding and extrusion materialsGB/T 1632.4-20202021-7-1
Plastics—Thermoplastic polyester/ester and polyether/ester elastomers for moulding and extrusion—Part 1:Designation system and basis for specificationGB/T 38273.1-20192020-11-1
Plastics—Thermoplastic polyester/ester and polyether/ester elastomers for moulding and extrusion—Part 2:Preparation of test specimens and determination of propertiesGB/T 38273.2-20192020-11-1
Plastics—Determination of residual styrene monomer in polystyrene(PS) and impact-resistant polystyrene(PS-I)—Gas chromatographyGB/T 38271-20192020-11-1
Plastics—Recycled polypropylene compoundGB/T 38288-20192020-11-1
Plastics－Long glass fiber reinforced polypropylene（PP） compound for automotiveGB/T 37881-20192020-7-1
Plastics-Injection moulding of test specimens of thermoplastic materials-Part 1:General principles,and moulding of multipurpose and bar test specimens GB/T 17037.1-20192020-4-1
Plastics—Acrylonitrile-butadiene-styrene(ABS) compound for automobileGB/T 37427-20192020-4-1
Air filter plate made by polylactic acid/polybutylene succinate compositeGB/T 37836-20192020-3-1
Suspension polyvinyl chloride resins of general purposeGB/T 5761-20182019-11-1
Impact-resistant polystyrene(PS-I) resinGB/T 37198-20182019-11-1
Plastics—Poly(phenylene sulfide)(PPS) moulding and extrusion materials—Part 2:Preparation of test specimens and determination of propertiesGB/T 37194.2-20182019-11-1
Ethylene-vinyl acetate resinGB/T 37197-20182019-11-1
Poly(ethylene terephthalate)(PET)resin for bottlesGB/T 17931-20182019-11-1
Plastics—Thermoplastic polyester(TP) moulding and extrusion materials—Part 1:Designation system and basis for specificationsGB/T 34691.1-20182019-11-1
Plastics—Poly(phenylene sulfide)(PPS) moulding and extrusion materials—Part 1:Designation system and basis for specificationsGB/T 37194.1-20182019-11-1
Plastics—Polybutene(PB) moulding and extrusion materials—Part 2:Preparation of test specimens and determination of propertiesGB/T 37199.2-20182019-11-1
Plastics—Polyamides—Accelerated conditioning of test specimensGB/T 36790-20182019-4-1
Plastics—Thermomechanical analysis(TMA)—Part 1:General principlesGB/T 36800.1-20182019-4-1
Plastics—Determination of tensile properties at high strain rates—Part 1:Equation fitting methodGB/T 36805.1-20182019-4-1
Plastics—Thermomechanical analysis(TMA)—Part 2: Determination of coefficient of linear thermal expansion and glass transition temperatureGB/T 36800.2-20182019-4-1
Plastics--Sulfone polymer moulding and extrusion materials--Part 1: Designation system and basis for specificationsGB/T 36374.1-20182019-1-1
Plastics--Sulfone polymer moulding and extrusion materials--Part 2: Preparation of test specimens and determination of propertiesGB/T 36374.2-20182019-1-1
Plastics—Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography—Part 2:Universal calibration methodGB/T 36214.2-20182018-12-1
Plastics—Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography—Part 5:Method using light-scattering detectionGB/T 36214.5-20182018-12-1
Plastics—Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography—Part 3:Low-temperature methodGB/T 36214.3-20182018-12-1
Plastics—Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography—Part 4:High-temperature methodGB/T 36214.4-20182018-12-1
Plastics—Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography—Part 1:General principlesGB/T 36214.1-20182018-12-1
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 moistureGB/T 3682.2-20182018-10-1
Plastics―Polycarbonate(PC) moulding and extrusion materials―Part 2:Preparation of test specimens and determination of propertiesGB/T 35513.2-20172018-7-1
Plastics—Polycarbonate (PC) moulding and extrusion materials—Part 1: Designation system and basis for specificationsGB/T 35513.1-20172018-7-1
Plastic—Chlorinated poly(vinyl chloride)compoundsGB/T 35504-20172018-7-1
Light diffusion polycarbonate for LED luminaireGB/T 35516-20172018-7-1
Plastics-Polypropylene(PP) compound for automobile-Part 2:Instrument panelGB/T 24149.2-20172018-5-1
Plastic-Chlorinated polyvinyl chloride) resinsGB/T 34693-20172018-5-1
Plastic-Determination of residual chloride content of chlorinated poly ( vinyl chloride) resins-Potentiometric titration methodGB/T 34694-20172018-5-1
Plastics-Polypropylene(PP) compound for automobile-Part 3:Door panelGB/T 24149.3-20172018-5-1
Plastics-Thermoplastic polyester (TP) moulding and extrusion materials- Part 2:Preparation of test specimens and determination of propertiesGB/T 34691.2-20172018-5-1
Test method of hot-tack property for heat sealing surfaces of thermoplastic polymer and thermoplastic composite materialGB/T 34445-20172018-4-1
Plastics―Polyethylene compounds for breathable filmGB/T 33319-20162017-7-1
Plastics―Polyethylene(PE)moulding and extrusion materials―Part 1:Designation system and basis for specificationsGB/T 1845.1-20162017-5-1
PIastics一Ethylene一vinyl acetate(EVAC)moulding and extrusion materials一 Partl:Designation system and basis for specificationGB/T 30924.1-20162017-5-1
Plastics一Antistatic impact-resistant polystyrene compoundGB/T 33094-20162017-5-1
Ultra-high-molecular-weight polyethylene(PE-UHMW) resinGB/T 32679-20162017-1-1
Plastics—Polyoxymethylene(POM) moulding and extrusion materials—Part 3: Requirements for general materialsGB/T 22271.3-20162017-1-1
Plastics—Determination of environment stress cracking (ESC) of polyethylene一Full-notch creep test (FNCT)GB/T 32682-20162017-1-1
Plastics―Polyamide(PA)moulding and extrusion materials―Part 2:Preparation of test specimens and determination of propertiesGB/T 32363.2-20152016-6-1
Plastics―Polyamide(PA)moulding and extrusion materials―Part 1:Designation system and basis for specificationGB/T 32363.1-20152016-6-1
Masterbatch for compound materials of polystyrene (PS) sheetQB/T 4885-20152016-3-1
Masterbatch of polypropylene random copolymer (PP-R) piping systems for hot and cold water installationQB/T 4884-20152016-3-1
Plastics―Acrylonitrile-butadiene-styrene/poly(methyl methacrylate) alloyGB/T 31403-20152015-10-1
Polypropylene(PP)color masterbatchHG/T 4668-20142015-4-1
High impact polystyrene (PS-HI) color masterbatchHG/T 4669-20142015-4-1
Polyvinyl butyral(PVB) interlayer for building mounted photovoltaic moduleJG/T 449-20142015-4-1
Plastics―Ethylene-vinyl acetate copolymer(EVAC)thermoplastics―Determination of vinyl acetate contentGB/T 30925-20142014-12-1
Phenolic resin for phenolic moulding compoundGB/T 30772-20142014-12-1
Plastics—Ethylene-vinyl acetate(EVAC) moulding and extrusion materials—Part 2:Preparation of test specimens and determination of propertiesGB/T 30924.2-20142014-12-1
Plastics―Polypropylene materials for meltblownGB/T 30923-20142014-12-1
Car (hot-pressing) mats, runk matsCAB 1030-20142014-6-6
Plastics―Melamine-formaldehyde powder moulding compounds(MF-PMCs)―Part 3:Requirements for selected moulding compoundsGB/T 13454.3-20132014-5-1
Plastics―Urea-formaldehyde and urea/melamine-formaldehyde powder moulding compounds(UF- and UF/MF-PMCs)―Part 2:Preparation of test specimens and determination of propertiesGB/T 3403.2-20132014-5-1
Poly(vinyl chloride) - Determination of residual vinyl chloride monomer gas-chromatographic methodGB/T 4615-20132014-5-1
Plastics―Melamine-formaldehyde powder moulding compounds(MF-PMCs)―Part 2:Preparation of test specimens and determination of propertiesGB/T 13454.2-20132014-5-1
Plastics―Homopolymer and copolymer resins of vinyl chloride―Determination of residual vinyl chloride monomer by gas-chromatographic analysis of dry powderGB/T 29874-20132014-5-1
Poly(methyl methacrylate) (PMMA) cast noise barriersGB/T 29641-20132014-1-31
Determination of conductivity of water extract of polyvinyl chloride resinsGB/T 2915-20132014-1-31
Plastics—Glass fiber reinforced poly(decamethylene terephthalamide)compoundGB/T 29640-20132014-1-31
Plastics—Recycled polystyrene compoundGB/T 29645-20132014-1-31
Modified biodegradable polyester used for blown filmGB/T 29646-20132014-1-31
Plastics-Determination of non-Newtonian index(NNI) for High density polyethyleneSH/T 1772-20112012-7-1
Plastics - Determination of phenolic antioxidants and erucamide slip additives in polypropylene homopolymer formulations - liquid chromatography (LC)GB/T 25277-20102011-8-1
2010 Plastics—Polyether polyols—Part 5:Determination of acidity as acid numberGB/T 12008.5-20102011-8-1
Plastic—Poly (vinyl alcohol) (PVAL) materials—Part 2:Determination of propertiesGB/T 12010.2-20102011-5-1
Plastics—Homopolymer and copolymer resins of vinyl chloride—Part 2:Preparation of test samples and determination of propertiesGB/T 3402.2-20102011-5-1
Plastic—Poly(vinyl alcohol)(PVAL) materials—Part 3:SpecificationGB/T 12010.3-20102011-5-1
Plastics—Determination of ash—Part 5:Poly (vinyl chloride)GB/T 9345.5-20102011-5-1
Chlorinated PolyethyleneHG/T 2704-20102011-3-1
Plastics - Determination of water content for PolyethyleneSH/T 1770-20102011-3-1
Polyethylene(PE)materials for piping systems of gasous fuels supplySH/T 1768-20092010-6-1
Determination of the thermal stability of poly(vinyl chloride) resins-Absorption of hydrogen chloride in water methodHG/T 3311-20092010-6-1
Black polyethylene compounds for wire and cableGB/T 15065-20092010-3-1
Acrylonitrile-butadiene-styrene(ABS)resinGB/T 12672-20092010-2-1
Polyethylene(PE) resinGB/T 11115-20092010-2-1
Petroleum resinGB/T 24138-20092010-2-1
Phenolic urethane resin for foundryGB/T 24413-20092010-2-1
Plastics—Polypropylene(PP)compound for automobile—Part 1:BumperGB/T 24149.1-20092010-2-1
Plastics—Glass fiber reinforced and flame retardant poly(butylenes terephthalate)compoundGB/T 24151-20092010-2-1
Plastics—Flame retardant impact-resistant polystyrene compoundGB/T 24150-20092010-2-1
Phenolic resin for friction materialsGB/T 24411-20092010-2-1
Phenolic resins for abrasivesGB/T 24412-20092010-2-1
Plastics - PVC resins for general use - Determination of hot plasticizer absorptionGB/T 23653-20092009-12-1
Plastics - PVC resins - Determination of compacted apparent bulk densityGB/T 23652-20092009-12-1
Polyvinyl chloride paste resinsGB 15592-20082009-6-1
Plastics - Poly(vinyl alcohol)(PVAL) materials - Part 1: Designation system and basis for specificationsGB/T 12010.1-20082009-4-1
Plastic - Compression moulding of test specimens of thermoplastic materialsGB/T 9352-20082009-4-1
Polystyrene (PS) resinGB/T 12671-20082009-4-1
Plastics - Polyoxymethylene(POM) moulding and extrusion materials - Part 1: Designation system and basis for specificationsGB/T 22271.1-20082009-4-1
Plastics - Polyoxymethylene (POM) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of propertiesGB/T 22271.2-20082009-4-1
Plastics － Impact - Resistant Polystyrene (PS-I) moulding and extrusion materials - Part 1: Designation system and basis for specificationsGB/T 18964.1-20082009-4-1
Plastics － Styrene-acrylonitrile (SAN) moulding and extrusion materials － Part 1: Designation system and basis for specificationsGB/T 21460.1-20082009-4-1
Plastics - Determination of bulk factor of moulding materialsGB/T 8324-20082009-4-1
Plastics - Ultra-high-molecular-weight polyethylene (PE-UHMW) moulding and extrusion materials - Part 1: Designation system and basis for specifications GB/T 21461.1-20082009-4-1
Plastics － Acrylonitrile-butadiene-Styrene(ABS) moulding and extrusion materials － Part 1: Designation system and basis for specificationsGB/T 20417.1-20082009-4-1
Plastics - Test method for environmental stress-cracking of polyethyleneGB/T 1842-20082009-4-1
Plastics - Polypropylene(PP)and propylene copolymer thermoplastics- Determination of isotactic indexGB/T 2412-20082009-2-1
Determination method of fish eyesfor polyvinyl chloride resins of general useGB/T 4611-20082008-12-1
Polyvinyl chloride resins for Paste - Determination of number of impurities particles and foreign particles GB/T 21992-20082008-12-1
Plastics - Preparation of PVC pastes for test purposes - Dissolver method GB/T 16613-20082008-12-1
Poly (vinyl chloride) - Determination of residual vinyl chloride monomer content - Gas chromatographic methodGB/T 4615-20082008-12-1
Polyvinyl chloride (PVC) pastes - Determination of fineness of grindGB/T 21990-20082008-12-1
Plastics - Vinyl chloride homopolymer and copolymer resins - Sieve analysis in waterGB/T 21988-20082008-12-1
Polyvinyl chloride resins - Test methods for the thermal stability - Whiteness methodGB/T 15595-20082008-11-1
Plastics - Homopolymer and copolymer resins of vinyl chloride - Determination of volatile matter (including water)GB/T 2914-20082008-11-1
Plastics - Poly(vinyl chloride) resins - Determination of number of impurities and foreign particles GB/T 9348-20082008-11-1
Plastics - Vinyl chloride homopolymer and copolymer resins - Particle size determination by mechanical sievingGB/T 21843-20082008-11-1
Mass polyvinyl choloride resinHG/T 4076-20082008-10-1
Polypropylene resin powder Part1:Batch processSH/T 1761.1-20082008-10-1
Polypropylene (PP) resinGB/T 12670-20082008-8-1
Plastics - Styrene/acrylonitrile (SAN) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of propertiesGB/T 21460.2-20082008-8-1
Nano-apatite/Polyamide composite - Part 1: DesignationGB/T 21511.1-20082008-8-1
Plastics - Ultra-high-molecular-weight polyethylene (PE-UHMW) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of propertiesGB/T 21461.2-20082008-8-1
Nano-apatite/Polyamide composite - Part 2: Technology requirmentsGB/T 21511.2-20082008-8-1
Plastic—Vinyl chloride homopolymer and copolymer resins—Sieve analysis using air-jet sieve apparatusGB/T 2916-20072008-3-1
Plastics—Determination of pourabilityGB/T 21060-20072008-2-1
Plastics—Polymers/resins in the liquid state or as emulsions or dispersions—Determination of viscosity using a rotational viscometer with defined shear rateGB/T 21059-20072008-2-1
Determination of the viscosity of Poly(vinyl chloride) resins in dilute solution using capillary viscometersGB/T 3401-20072008-2-1
Polyethylene (PE) materials for water supply piping systemsSH/T 1758-20072008-1-1
Poly(vinyl chloride) resin - Determination of nitrile group contentHG/T 3946-20072008-1-1
Poly(vinyl chloride) resin-Determination of metal ions contents-ICP methodHG/T 3944-20072008-1-1
Vinyl chlorede monomer-Determination of organic impurities contentsHG/T 3945-20072008-1-1
Poly(vinyl chloride)resin-Determination of toluene contentHG/T 3943-20072008-1-1
Quantitative Analysis of Vinyl Acetate in Copolymer of Ethylene and Vinyl Acetate - TGA MethodHS/T 9-20062007-4-1
Plastics―Acrylonitrile-butadiene-styrene(ABS)moulding and extrusion materials―Part 2: Preparation of test specimens and determination of propertiesGB/T 20417.2-20062006-11-1
Plastics―Polyethylene(PE) moulding and extrusion materials―Part 2: Preparation of test specimens and determination of propertiesGB/T 1845.2-20062006-11-1
Plastics—Homopolymer and copolymer resins of vinyl chloride Part 1:Designation system and basis for specficationsGB/T 3402.1-20052006-5-1
GB/T 2002 2-2005 Plastics - Homopolymer and copolymer resins of vinyl chloride - Determination of apparent densityGB/T 2002 2-20052006-5-1
Suspension poly (vinyl chloride) resins via vinyl chloride and nano - Calcium carbonate in situ polymerizationHG/T 3791-20052006-1-1
Propylene random copolymer (PP-R) materials for piping systems for hot and cold water installationsSH/T 1750-20052005-9-1
Poly(ethylene terephthalate)(PET)resin for bottlesGB/T 17931-20032004-8-1
Poly(ethylene terephthalate)(PET)resin for bottlesGB 17931-20032004-8-1
Polyvinyl chloride paste—Determination of apparent viscosity by the Brookfield test methodGB/T 12004.4-20032004-2-1
Plastics—Homopolymer and copolymer resins of vinyl chloride—Determination of pH of aqueous extractGB/T 9350-20032004-2-1
Plastics - Injection moulding of test specimens of thermoplastic materials - Part 3: Small platesGB/T 17037.3-20032003-7-1
Plastic--Injection moulding of test specimens of thermoplastic materials--Part 4:Determination of moulding shrinkageGB/T 17037.4-20032003-7-1
Plastics - Polypropylene(PP) moulding and extrusion materials - Part 2 : Preparation of test speciments and determination of propertiesGB/T 2546.2-20032003-7-1
Plastics--Polystyren(PS) moulding and extrusion materials--Part 2:Preparation of test specimens and determination of propertiesGB/T 6594.2-20032003-7-1
Plastics-Impact-resistant polystyrene(PS-I)moulding and extrusion materials-Part 2:Preparation of test specimens and determination of propertiesGB/T 18964.2-20032003-7-1
Plastics--Vinyl chloride hompopolymers and copolymers--Determination of chlorine contentGB/T 7139-20022003-4-1
Plastics--Hompopolymer and copolymer resins of vinyl chloride for general use--Determination of plasticizer absorption at room temperatureGB/T 3400-20022003-4-1
Determination of compounds and products based on vingl chloride homopolymers and copolymers to evolve hydrogen chloride and any other acidic products at elevoted temperatures--Congo rGB/T 2917.1-20022002-12-1
Determination of thermal stabitity of poly (vinylchloride) related chlorine - containing homopolymers and copolymers and their compounds - Discoloration methodGB/T 9349-20022002-12-1
Standard method for carbon black--Improving test reproducibility using ASTM reference blacksGB/T 10723-20022002-12-1
Determination for particle size range, effective size and uniformity coefficient of ion exchange resineGB/T 5758-20012002-3-1
Determination for sphericity of ion exchange resins after attrition of osmotic - AttritionGB/T 12598-20012002-3-1
Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplasticsGB/T 3682-2000 2001-5-1
Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplasticsGB/T 3682-2000 2001-5-1
Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplasticsGB/T 3682-2000 2001-5-1
Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplasticsGB/T 3682-20002001-5-1
Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplasticsGB/T 3682-2000 2001-5-1
Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplasticsGB/T 3682-2000 2001-5-1
Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplasticsGB/T 3682-2000 2001-5-1
Plastics--Thermoplastic materials--Determination of Vicat sofening temperature (VST)GB/T 1633-20002001-3-1
Determination of conductivity of water extract of poly (vinyl chloride) resinsGB/T 2915-19992000-6-1
Plastics―Homopolymer and copolymer resins of vinyl chloride―Determination of volatile matter (including water)GB/T 2914-19992000-6-1
Polytetrafluoroethylene resins for paste extrusionHG/T 3028-19992000-6-1
Determination of viscosity loss of cellulose acetate on mouldingHG/T 3029-19992000-6-1
Determination of viscosity number of PVC resins in dilute solutionGB/T 3401-19992000-6-1
Polyethylene (PE) moulding and extrusion materials - Part 1: Designation system and basis for specificationsGB/T 1845.1-19992000-6-1
Determination of acetic acid yidle Of unplasticized cellulose acetateHG/T 3021-19992000-6-1
Test method for environmental stress-cracking of polyethylene plasticsGB/T 1842-19992000-6-1
Polystyrene (PS) moulding and extrusion materials-Part 1: Designation system and basis for specificationsGB/T 6594.1-19981999-2-1
Injection moulding of test specimens of thermoplastic materials - Part 1: General principles and moulding of multipurpose and bar test specimensGB/T 17037.1-19971998-4-1
Plastics--Vinyl chloride homopolymer and copolymer resins--Sieve analysis using air-jet sieve apparatusGB/T 2916-19971998-2-1
PEEP - Fluorocarbon moulding and extrusion materialsHG/T 2904-19971997-10-1
Finely granular Polytetrafluoroethylene resin used for moldingHG/T 2903-19971997-10-1
Polytetrafluoroethylene molding powderHG/T 2902-19971997-10-1
Testing method for particle size of polytetrafluoroethylene resinHG/T 2901-19971997-10-1
Designation of polytetrafluoroethylene materialsHG/T 2899-19971997-10-1
Testing method for bulk density of polytetrafluoroethylene resinHG/T 2900-19971997-10-1
Plastics--phenolic resins--determination of electrical conductivity of resin extractsHG/T 2905-19971997-9-1
Paste polyvinyl chloride resinsGB 15592-19951995-12-1
Plasticized polyvinyl chloride (PVC) compounds for transfusion (infusion) equipmentGB 15593-19951995-12-1
Polybutylene Terephthalate (PBT) - Designation of Thermoplastic Material HG 2361-19921994-12-1
Dermination method for vinyl acetic ester content in ethylene-vinyl acetic ester copolymer (E/VAC )SH/T 1591-19941994-10-1
Determination of ash and sulphated ash of PVCGB/T 13453.3-19921993-10-1
Plastics-Aminoplastic moulding materials-Determination of volatile matterGB/T 13455-19921993-4-1
Test method of vinyl chloride homopolymer and copolymer resins-Sieve analysis in waterGB/T 13453.1-19921993-4-1
Determination for the content of methanol or ethanol extract of polyvinyl chloride resinsGB/T 13453.2-19921993-4-1
Polystyrene resinGB 12671-19901991-10-1
Polypropylene resinGB 12670-19901991-10-1
Acrylonitrile-butadiene-styrene (ABS) resinGB 12672-19901991-10-1
Test method for bulk factor of moulding materialsGB/T 8324-19871988-8-1
Method for the determination of bulk density for ion exchange resins in wet stateGB 8331-19871988-8-1
Determination of weight-average molecular weight of polystyrene standards by low angle laser light scattering methodGB/T 6598-19861987-7-1
Test method for fish eye count of polypropylene resinGB 6595-19861987-7-1
Test method for the viscosity of the dilute solution of polyformaldehyde resinGB 1847-19801980-10-1
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