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Styrene impurity

Styrene impurity, Total:500 items.

In the international standard classification, Styrene impurity involves: Plastics, Products of the chemical industry, Analytical chemistry, Organic chemicals, Adhesives, Raw materials for rubber and plastics, Protection against fire, Rubber and plastics products, Construction materials, Production in the chemical industry, Tobacco, tobacco products and related equipment, Rubber, Air quality, Materials and articles in contact with foodstuffs, Kitchen equipment, Tunnel construction, Pipeline components and pipelines, Fuels, Cellular materials, Furniture, Insulating materials, Products of the textile industry, Equipment for the chemical industry, Protection of and in buildings, Equipment for entertainment, Road engineering, Shipbuilding and marine structures in general, Packaging materials and accessories, Inorganic chemicals.


American Society for Testing and Materials (ASTM), Styrene impurity

  • ASTM UOP913-92 Impurities in Styrene by Gas Chromatography
  • ASTM UOP755-13 Trace Impurities in High Purity Ethyl Benzene by GC
  • ASTM UOP755-92 Trace Impurities in High-Purity Ethylbenzene by Gas Chromatography
  • ASTM D4225-97 Standard Specification for Styrene-Butadiene Sheeting
  • ASTM D5991-09 Standard Practice for Separation and Identification of Poly(Vinyl Chloride) (PVC) Contamination in Poly(Ethylene Terephthalate) (PET) Flake
  • ASTM D3314-02(2021) Standard Test Method for Rubber—Chemical Analysis for Polystyrene Blocks In SBR (Styrene-Butadiene Rubber) and Styrene-Reinforced Latices
  • ASTM C578-12b Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM D4590-18 Standard Test Method for Colorimetric Determination of p-tert-Butylcatechol In Styrene Monomer or AMS (α–Methylstyrene) by Spectrophotometry
  • ASTM D4026-87(2002)e1 Standard Test Method for Rubber Latex-Styrene-Butadiene Copolymer-Determination of Residual Styrene
  • ASTM D7185-11 Standard Specification for Low Toluene Low Dioxane (LTLD) Benzene
  • ASTM C578-05a Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-05 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-04a Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-22 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM D4026-06(2021) Standard Test Method for Rubber Latex—Styrene-Butadiene Copolymer—Determination of Residual Styrene
  • ASTM D3160-20a Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (α–Methylstyrene)
  • ASTM D4026-06 Standard Test Method for Rubber Latex8212;Styrene-Butadiene Copolymer8212;Determination of Residual Styrene
  • ASTM C578-19 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-16 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-06 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM D6817/D6817M-17(2021) Standard Specification for Rigid Cellular Polystyrene Geofoam
  • ASTM C578-00 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-01 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-92 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-07 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-18 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-12a Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-04 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-95 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM D6817-13 Standard Specification for Rigid Cellular Polystyrene Geofoam
  • ASTM D6817/D6817M-13a Standard Specification for Rigid Cellular Polystyrene Geofoam
  • ASTM D6817/D6817M-17 Standard Specification for Rigid Cellular Polystyrene Geofoam
  • ASTM C578-17 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-15 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-08 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-08a Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-08b Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-09 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-09e1 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-10 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-10a Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-11a Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-12 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-13 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-14 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-15a Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-15b Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-17a Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM C578-23 Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
  • ASTM D4225-03 Standard Specification for Styrene-Butadiene Sheeting
  • ASTM D6164-05 Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Polyester Reinforcements
  • ASTM D6164-00 Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Polyester Reinforcements
  • ASTM D6164-05e1 Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Polyester Reinforcements
  • ASTM D4026-06(2012) Standard Test Method for Rubber Latexmdash;Styrene-Butadiene Copolymermdash;Determination of Residual Styrene
  • ASTM D6164/D6164M-21 Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Polyester Reinforcements
  • ASTM D6164/D6164M-16 Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Polyester Reinforcements
  • ASTM D5060-07 Standard Test Method for Determining Impurities in High-Purity Ethylbenzene by Gas Chromatography
  • ASTM D2827-10 Standard Specification for Styrene Monomer
  • ASTM D2827-11 Standard Specification for Styrene Monomer
  • ASTM D6163-00 Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements
  • ASTM D6162-00a(2008) Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using a Combination of Polyester and Glass Fiber Reinforcements
  • ASTM D6163-00(2008) Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements
  • ASTM D6163/D6163M-16 Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements
  • ASTM D5775-95(2023) Standard Test Method for Rubber—Determination of Bound Styrene in Styrene Butadiene Rubber by Refractive Index
  • ASTM D2121-07 Standard Test Methods for Polymer Content of Styrene Monomer and AMS (alpha-Methylstyrene)
  • ASTM D6817-11 Standard Specification for Rigid Cellular Polystyrene Geofoam
  • ASTM D5060-06 Standard Test Method for Determining Impurities in High-Purity Ethylbenzene by Gas Chromatography
  • ASTM D5060-95(2000)e1 Standard Test Method for Determining Impurities in High-Purity Ethylbenzene by Gas Chromatography
  • ASTM D6298/D6298M-16(2023) Standard Specification for Fiberglass Reinforced Styrene-Butadiene-Styrene (SBS) Modified Bituminous Sheets with a Factory Applied Metal Surface
  • ASTM D2121-00 Standard Test Methods for Polymer Content of Styrene Monomer and AMS (alpha-Methylstyrene)
  • ASTM D4549-00 Standard Specification for Polystyrene and Rubber-Modified Polystyrene Molding and Extrusion Materials (PS)
  • ASTM D6159-97(2012) Standard Test Method for Determination of Hydrocarbon Impurities in Ethylene by Gas Chromatography
  • ASTM D6159-17 Standard Test Method for Determination of Hydrocarbon Impurities in Ethylene by Gas Chromatography
  • ASTM D2827-04 Standard Specification for Styrene Monomer
  • ASTM D2827-00 Standard Specification for Styrene Monomer
  • ASTM D2827-12 Standard Specification for Styrene Monomer
  • ASTM D2827-12a Standard Specification for Styrene Monomer
  • ASTM D2827-19 Standard Specification for Styrene Monomer
  • ASTM D2827-08 Standard Specification for Styrene Monomer
  • ASTM D2827-13 Standard Specification for Styrene Monomer
  • ASTM D4026-06(2017) Standard Test Method for Rubber Latex—Styrene-Butadiene Copolymer—Determination of Residual Styrene
  • ASTM D6865-04 Standard Classification System for Acrylonitrile-Styrene-Acrylate (ASA) and Acrylonitrile-EPDM-Styrene (AES) Plastics and Alloys Molding and Extrusion Materials
  • ASTM D4549-03 Standard Specification for Polystyrene and Rubber-Modified Polystyrene Molding and Extrusion Materials (PS)
  • ASTM D5060-12 Standard Test Method for Determining Impurities in High-Purity Ethylbenzene by Gas Chromatography
  • ASTM D6163-00e2 Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements
  • ASTM D6164/D6164M-11 Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Polyester Reinforcements
  • ASTM D6163/D6163M-21 Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements
  • ASTM D6163-00e1 Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements
  • ASTM UOP1014-17 Determination of Trace Propadiene and Methyl Acetylene Impurities in Polymer Grade Propylene by Gas Chromatography
  • ASTM F2806-23 Standard Specification for Acrylonitrile-Butadiene-Styrene (ABS) Plastic Pipe (Metric SDR-PR)
  • ASTM D3965-05 Standard Specification for Rigid Acrylonitrile-Butadiene-Styrene (ABS) Materials for Pipe and Fittings
  • ASTM D6159-23 Standard Test Method for Determination of Hydrocarbon Impurities in Ethylene by Gas Chromatography
  • ASTM D3314-02(2012) Standard Test Method for Rubbermdash;Chemical Analysis for Polystyrene Blocks In SBR (Styrene-Butadiene Rubber) and Styrene-Reinforced Latices
  • ASTM D3314-02(2017) Standard Test Method for Rubber—Chemical Analysis for Polystyrene Blocks In SBR (Styrene-Butadiene Rubber) and Styrene-Reinforced Latices

PL-PKN, Styrene impurity

RU-GOST R, Styrene impurity

  • GOST 15820-1982 Polystyrole and copolymers of styrole. Gas chromatographic method for determination of resictual monomers and non-polymerizing impurities
  • GOST 10003-1990 Styrene. Specifications
  • GOST 23492-1983 Synthetic rubbers, butadiene-styrene SKS-30ARKPN and butadiene-methylstyrene SKMS-30ARKPN. Specifications
  • GOST R 54551-2011 Rubber styrene-butadiene. Determination of bound styrene content. Refractive index method
  • GOST 24654-1981 Synthetic rubbers. Method for determination of bound styrene content and alpha-methylstyrene
  • GOST 12998-1985 Polystyrene film. Specifications
  • GOST 22019-1985 Synthetic rubbers. Method for determination of free styrene and alpha-methyl styrene
  • GOST 12851-1987 Polystyrene filaments. Specifications
  • GOST 15627-1979 Synthetic rubbers butadiene-methylstyrene CKMC-30 APK and butadiene-styrene CKC-30 APK. Specifications
  • GOST 11138-1978 Butadienemethylstyrene synthetic rubber CKMC-30APKM-15 and butadiene-styrene rubber CKC-30APKM-15. Specifications
  • GOST 12172-2016 Phenol-polyvinylacetyl adhesives. Specifications
  • GOST 12172-1974 Phenol-polivinylacetyl adhesives. Specifications
  • GOST 15628-1979 Synthetic rubbers butadiene methyl styrene CKMC-30APKM-27 and butadiene styrene CKC-30APKM-27. Specifications
  • GOST 15588-2014 Polystyrene insulating slabs. Specifications
  • GOST 15588-1986 Polystyrene foam boards. Specifications
  • GOST R 50183-1992 Plastics. Polyvinylchloride resines. Determination of number of impurites and foreign particles
  • GOST 12271-1976 The copolymers of styrene. Specifications
  • GOST 2706.2-1974 Benzene hydrocarbons and allied products. Chromatographic method of determination of main substance and impurities content in benzene, tolyene and xylene
  • GOST 27748-1988 Polyolefins. Test procedure for the determination of contaminants
  • GOST R 52056-2003 Polymer-bitumen binders for roads on the basis of block copolymers of styrene-butadiene-styrene type. Specifications
  • GOST 33929-2016 Concrete with polystyrene aggregates. Specifications
  • GOST 28250-1989 High-impact polystyrene. Specifications

IN-BIS, Styrene impurity

中华人民共和国国家卫生和计划生育委员会, Styrene impurity

  • GBZ/T 300.68-2017 Determination of Toxic Substances in Workplace Air Part 68: Styrene, Methylstyrene and Divinylbenzene

SE-SIS, Styrene impurity

  • SIS SS-ISO 1265:1987 Plastics - Polyvinyl chloride resins - Determination of number of impurities and foreign particles
  • SIS 16 66 60-1966 Styrene moulding and extrusion compounds. General information
  • SIS 16 66 02-1966 Polystyrene. Determination of the percentage of styrene with Wijs solution
  • SIS 16 66 53-1966 Acrylonilrile-butadiene-slyrene (ABS) moulding and extrusion compounds
  • SIS 16 66 54-1966 Styrene-butadiene moulding and extrusion compounds

Association Francaise de Normalisation, Styrene impurity

  • NF T51-046*NF EN ISO 1265:2007 Plastics - Poly(vinyl chloride) resins - Determination of number of impurities and foreign particles.
  • NF EN ISO 19065-2:2019 Plastiques - Matériaux à base d'acrylonitrile-styrène-acrylate (ASA), d'acrylonitrile-(éthylène-propylène-diène)-styrène (AEPDS) et d'acrylonitrile-(polyéthylène chloré)-styrène (ACS) pour moulage et extrusion - Partie 2 : préparation d...
  • NF T53-039-1*NF EN ISO 19065-1:2015 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 1 : designation system and basis for specification
  • NF T53-037-1:2004 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 1 : designation system and basis for specification
  • NF T53-037-2:2004 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 2 : preparation of test specimens and determinatio
  • NF EN ISO 19065-1:2015 Plastiques - Matériaux plastique acrylonitrile-styrène-acrylate (ASA), plastique acrylonitrile-(éthylène-propylène-diène)-styrène (AEPDS) et plastique acrylonitrile-(polyéthylène chloré)-styrène (ACS) pour moulage et extrusion - Partie 1 : s...
  • NF EN ISO 1265:2007 Plastiques - Résines de poly(chlorure de vinyle) - Détermination du nombre d'impuretés et de corps étrangers
  • NF T54-420*NF EN ISO 15015:2011 Plastics - Extruded sheets of impact-modified acrylonitrile-styrene copolymers (ABS, AEPDS and ASA) - Requirements and test methods.
  • NF T20-809:1982 Ethylene for industrial use. Determination of hydrocarbon impurities. Gas chromatographic method.
  • NF T46-071*NF ISO 2453:2020 Rubber, raw styrene-butadiene, emulsion-polymerized - Determination of bound styrene content - Refractive index method
  • NF T51-901:1981 Plastics. Determination of residual styrene monomer in polystyrene by gas chromatography.
  • NF T51-046:1997 Plastics - Polyvinyl chloride resins. Determination of number of impurities and foreign particles.

International Organization for Standardization (ISO), Styrene impurity

  • ISO 1265:1979 Plastics; Polyvinyl chloride resins; Determination of number of impurities and foreign particles
  • ISO 19065-2:2019 Plastics — Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials —
  • ISO/PRF 3136 Rubber latex — Styrene-butadiene — Determination of bound styrene content
  • ISO 2453:1975 Styrene-butadiene copolymers — Determination of bound styrene content
  • ISO 3136:2023 Rubber latex — Styrene-butadiene — Determination of bound styrene content
  • ISO 6402-1:2002 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 1: Designation system and basis for specifications
  • ISO 6402-2:2003 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 2: Preparation of test specimens and determination
  • ISO 19065-1:2014 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 1: Designation system and basis for specifications
  • ISO 2058:1973
  • ISO/DIS 2561:1975 Plastics — Determination of residual styrene monomer in polystyrene (PS) and impact-resistant polystyrene (PS-I) by gas chromatography
  • ISO/FDIS 2561:2023 Plastics — Determination of residual styrene monomer in polystyrene (PS) and impact-resistant polystyrene (PS-I) by gas chromatography
  • ISO 6402-1:2001 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 1: Designation system and basis for specifications
  • ISO 6379:1981 Ethylene for industrial use; Determination of hydrocarbon impurities; Gas chromatographic method
  • ISO 2561:2006 Plastics - Determination of residual styrene monomer in polystyrene (PS) and impact-resistant polystyrene (PS-I) by gas chromatography
  • ISO 2561:2012 Plastics - Determination of residual styrene monomer in polystyrene (PS) and impact-resistant polystyrene (PS-I) by gas chromatography
  • ISO 2561:1974 Plastics; Determination of residual styrene monomer in polystyrene by gas chromatography
  • ISO 1265:2007 Plastics - Poly(vinyl chloride) resins - Determination of number of impurities and foreign particles

British Standards Institution (BSI), Styrene impurity

  • BS EN ISO 1265:2007 Plastics - Poly(vinyl chloride) resins - Determination of number of impurities and foreign particles
  • BS EN ISO 6402-2:2003 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Preparation of test specimens and determination of prop
  • BS EN ISO 19065-1:2014 Plastics. Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials. Designation system and basis for specifications
  • 22/30446382 DC BS ISO 3136. Rubber latex. Styrene-butadiene. Determination of bound styrene content
  • BS ISO 2561:2012 Plastics. Determination of residual styrene monomer in polystyrene (PS) and impact-resistant polystyrene (PSI) by gas chromatography
  • 23/30428206 DC BS ISO 2561. Plastics. Determination of residual styrene monomer in polystyrene (PS) and impact-resistant polystyrene (PS-I) by gas chromatography
  • BS ISO 2453:2020 Rubber, raw styrene-butadiene, emulsion-polymerized. Determination of bound styrene content. Refractive index method
  • BS ISO 21561-2:2016 Styrene-butadiene rubber (SBR). Determination of the microstructure of solution-polymerized SBR. FTIR with ATR method
  • BS 5391-1:2006 Acrylonitrile-butadiene-styrene (ABS) pressure pipe - Specification
  • 18/30358631 DC BS ISO 2453. Rubber, raw styrene-butadiene, emulsion-polymerized. Determination of bound styrene content. Refractive index method
  • BS EN ISO 19065-2:2019 Tracked Changes. Plastics. Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials. Preparation of test specimens and det...
  • BS ISO 21561-1:2015 Styrene-butadiene rubber (SBR). Determination of the microstructure of solution-polymerized SBR. 1H-NMR and IR with cast-film method

工业和信息化部, Styrene impurity

Professional Standard - Chemical Industry, Styrene impurity

Universal Oil Products Company (UOP), Styrene impurity

Korean Agency for Technology and Standards (KATS), Styrene impurity

United States Navy, Styrene impurity

Japanese Industrial Standards Committee (JISC), Styrene impurity

  • JIS K 6727:1977 Styrene
  • JIS K 6727-1:2012 Styrene.Part 1: Quality and marking
  • JIS K 1800:1978 Analytical methods for trace of impurities in high purity ethylene
  • JIS K 6876-1:2006 Plastics -- Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials -- Part 1: Designation system and basis for specificatio
  • JIS K 6876-2:2007 Plastics -- Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials -- Part 2: Preparation of test specimens and determinati
  • JIS K 6872:1995 Polystyrene sheets
  • JIS K 6727 AMD 1:2006 Styrene (Amendment 1)
  • JIS K 6869:2009 Plastics -- Determination of residual styrene monomer in polystyrene(PS) and impact-resistant polystyrene(PS-I) by gas chromatography
  • JIS K 6873:1975 Acrylonitrile-butadiene-styrene (ABS) sheets
  • JIS K 6869:1999 Plastics -- Determination of residual styrene monomer in polystyrene by gas chromatography
  • JIS K 6870:1995 Polystyrene moulding materials
  • JIS K 6871:1995 Testing methods for polystyrenes
  • JIS K 6737:1999 Plastics -- Polyvinyl chloride resins -- Determination of number of impurities and foreign particles
  • JIS K 6239-2:2017 Styrene-butadiene rubber(SBR) -- Determination of the microstructure of solution-polymerized SBR -- Part 2: FTIR with ATR method
  • JIS K 6727-2:2012 Styrene.Part 2: Test method
  • JIS Z 1536:1995 Polystyrene foam for package cushioning

German Institute for Standardization, Styrene impurity

  • DIN EN ISO 1265:2007 Plastics - Poly(vinyl chloride) resins - Determination of number of impurities and foreign particles (ISO 1265:2007) English version of DIN EN ISO 1265:2007-05
  • DIN EN ISO 6402-1:2003 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 1: Designation system and basis for specification
  • DIN EN ISO 19065-2:2019 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 2: Preparation of test specimens and determination
  • DIN EN ISO 6402-2:2004 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 2: Preparation of test specimens and determination
  • DIN EN ISO 19065-2:2019-06 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 2: Preparation of test specimens and determinat...
  • DIN EN ISO 19065-1:2015-03 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 1: Designation system and basis for specificati...
  • DIN EN ISO 19065-1:2015 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 1: Designation system and basis for specifications
  • DIN EN ISO 1265:2007-05 Plastics - Poly(vinyl chloride) resins - Determination of number of impurities and foreign particles (ISO 1265:2007); German version EN ISO 1265:2007

CZ-CSN, Styrene impurity

CEN - European Committee for Standardization, Styrene impurity

  • EN ISO 19065-2:2019 Plastics - Acrylonitrile-styrene-acrylate (ASA)@ acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 2: Preparation of test specimens and determination
  • EN ISO 6402-1:2001 Plastics - Acrylonitrile-Styrene-Acrylate (ASA)@ Acrylonitrile-(Ethylene-Propylene-Diene)-Styrene (AEPDS) and Acrylonitrile-(Chlorinated Polyethylene)-Styrene (ACS) Moulding and Extrusion Materials - Part 1: Designation Systems and Basis for Specification

RO-ASRO, Styrene impurity

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Styrene impurity

  • GB/T 27561-2011 Styrene-butadiene-styrene block copolymers(SBS) adhesives
  • GB/T 16867-1997 Determination of residual styrene monomer in polystyrene and acrylonitrile-butadiene-styrene resins by gas chromatography
  • GB 12671-1990 Polystyrene resin
  • GB/T 3915-2011 Styrene for industrial use
  • GB 3915-1998 Styrene for industrial use
  • GB/T 12688.1-2011 Test method of styrene for industrial use—Part 1:Determination of purity and hydrocarbon impurities—Gas chromatography
  • GB/T 14677-1993 Air quality. Determination of toluene, dimethyl benzene and styrene. Gas chromatography
  • GB/T 12004.1-1989 Determination of impurities particles number in polyvinyl chloride paste resins
  • GB/T 14670-1993 Air quality. Determination of styrene. Gas chromatography
  • GB/T 12824-2002 Rubber,styrene-butadiene (SBR) 1502
  • GB/T 8655-2006 Styrene-butadiene rubber(SBR)1500
  • GB/T 12671-2008 Polystyrene(PS)resin
  • GB 12672-1990 Acrylonitrile-butadiene-styrene (ABS) resin
  • GB/T 12672-2009 Acrylonitrile-butadiene-styrene(ABS) resin
  • GB/T 4614-1984 Determination of residual styrene monomer in polystyrene by gas chromatography
  • GB/T 9353-1988 Determination of residual styrene monomer in Acrylonitrile-Butadiene-Styrene(ABS)resin by gas chromatography
  • GB/T 8803-2001 Injection-moulded unplasticized poly(vinyl chloride)(PVC-U),chlorinated poly(vinyl chloride)(PVC-C),acrylonitrile butadiene-styrene(ABS)and acrylonitrile-styrene-acrylester(ASA)fittings Hot oven test method
  • GB/T 3391-2002 Ethylene for industrial use--Determination of hydrocarbon impurities--Gas chromatographic method
  • GB/T 21992-2008 Polyvinyl chloride resins for paste.Determination of number of impurities particles and foreign particles
  • GB/T 9348-2008 Plastics. Poly(vinyl chloride) resins. Determination of number of impurities and foreign particles
  • GB/T 10009-1988 Acrylonitrile--Butadiene--Styrene (ABS) plastics extrusion plates
  • GB/T 9348-1988 Determination of number of impurities and foreign particles of polyvinyl chloride resins
  • GB/T 8658-1998 Rubber, raw styrene-butadiene, emulsion-polymerized--Determination of bound styrene content--Refractive index method
  • GB/T 16719-1996 Biaxially oriented polystyrene (BOPS) sheet
  • GB/T 16719-2008 Biaxially oriented polystyrene(BOPS)sheet

Professional Standard - Petrochemical Industry, Styrene impurity

  • SH/T 1590-1994 Styrene-butadiene series impact-resistant polystyrene (SB) resin
  • SH 1590-1994 Styrene-butadiene series impact-resistant polystyrene (SB) resin
  • SH/T 1626-2005 Rubber, styrene-butadiene (SBR)1712
  • SH/T 1485.1-1995 divinylbenzene for industrial use
  • SH/T 1148-2001 Ethylbenzene for industrial use - Determination of purity and hydrocarbon impurities - Gas chromatographic method
  • SH 1051-1991 Designation of Styrene-Butadiene Series Impact Polystyrene (SB) Molding and Extrusion Materials
  • SH/T 1051-1991 Designation of Styrene-Butadiene Series Impact Polystyrene (SB) Molding and Extrusion Materials
  • SH/T 1628.2-1996 Determination of industrial vinyl acetate purity and organic impurities by gas chromatography
  • SH/T 1628.2-2023 Vinyl acetate for industrial use－ Part 2: Determination of purity and organic impurities－ Gas Chromatographic Method
  • SH/T 1610-2001 Styrene-butadiene block copolymer
  • SH/T 1502-1992 Determination of bound styrene content in styrene-butadiene latex

Military Standard of the People's Republic of China-General Armament Department, Styrene impurity

  • GJB/J 5126-2002 Specification for polystyrene particle size reference materials

American National Standards Institute （ANSI), Styrene impurity

  • ANSI/ASTM D5991:1997 Practice for Separation and Identification of Poly(Viny Chloride) (PVC) Contamination in Poly(Ethylene Terephthalate) (PET) Flake
  • ANSI/ASTM D4225:1997 Specification for Styrene-Butadiene Sheeting (08.03)
  • BS ISO 3136:2023 Rubber latex. Styrene-butadiene. Determination of bound styrene content (British Standard)
  • ANSI/ASTM D4203:2000 Specification for Styrene Acrylonitrile (SAN) Injection and Extrusion Materials (08.02)

Professional Standard - Commodity Inspection, Styrene impurity

  • SN/T 2889-2011 Food contact materials for export.Polymers.Determination of toluene ethylbenzene propylbenzene isopropylbenzene styrene and total volatile substances in polystyrene.Gas chromatography method

TR-TSE, Styrene impurity

  • TS 2610-1977 STYRENE - BUTEDIEN COPOLYMERS - DETERMINATION OF BOUND STYRENE CONTENT
  • TS 3247-1978 Sanayide Kullan?lan Stiren
  • TS 340-1966 PLASTICS DETERMINATION OF THE PERCENTAGE OF STYRENE ?N POLYSTYRENE WITH WIJS SOLUTION
  • TS 2489-1977 POLYSTYRENE MOULDING MATERIAL
  • TS 2492-1977 PLASTICS DETERMINATION OF RESIDUAL STYRENE MONOMER ?N POLYSTYRENE BY GAS CHROMATOGRAPHY
  • TS 3487-1980 RAW STYRENE BUTADIENE RUBBER (SBR) — DETERMINATION OF VOLATILE MATTER
  • TS 3486-1980 ?RAW STYRENE — BUTADIENE RUBBER (SBR) — DETERMINATION OF SOAP CONTENT-
  • TS 3423-1979 PLASTICS - DESIGNATION OF IMPACT RESISTANT POLYSTYRENES

US-VA, Styrene impurity

  • VA 07 52 16.13-2010 STYRENE-BUTADIENE-STYRENE MODIFIED BITUMINOUS MEMBRANE ROOFING, COLD-APPLIED

US-FCR, Styrene impurity

Taiwan Provincial Standard of the People's Republic of China, Styrene impurity

  • CNS 11285-1985 Rigid Acrylonitrile-Butadiene-Styrene (ABS) Plastics
  • CNS 3637-1980 Phenyl Ethylene (Styrene) Monomer
  • CNS 11286-1985 Method of Test for Rigid Acrylonitrile-Butadiene-Styrene (ABS) Plastics
  • CNS 11337-1985 Acrylonitrile-Butadiene-Styrene (ABS) Sheets
  • CNS 13344-1994 Rigid Acrylonitrile - Butadiene - Styrene (ABS) Compounds for Pipes and Fittings
  • CNS 3894-1975 Method of Test for Styrene Monomer
  • CNS 11338-1985 Method of Test for Acrylonitrile-Butadiene-Styrene Sheets
  • CNS 10351-1983 Method of Test for Synthetic Rubber Sbr
  • CNS 13345-1994 Method of Test for Rigid Acrylonitrile - Butadiene - Styrene (ABS) Compounds for Pipes and Fittings
  • CNS 2535-1992 Thermal Insulation Material Made of Polystyrene Foam
  • CNS 13158-1995 Acrylonitrile-Butadiene-Styrene (ABS) Plastic Pipes for Water Works
  • CNS 10350-1983 Method of Test for Synthetic Rubber Sbr Latex
  • CNS 12188-1987 4,4'-Diaminostilbene-2,2'-Disulfonic Acid
  • CNS 4013-1976 Method of Test for Polystyrene Moulding Materials
  • CNS 3918-1976 Polystyrene Moulding Materials (for General Use)

AR-IRAM, Styrene impurity

IL-SII, Styrene impurity

NO-SN, Styrene impurity

  • NS 1641-1969 Fish boxes made of expanded polystyrene - Quality requirements

KR-KS, Styrene impurity

  • KS F 4734-2022 Expanded polystyrene lightweight concrete panel for wall

国家质量监督检验检疫总局, Styrene impurity

  • SN/T 4156-2015 Detection method of divinylbenzene in polystyrene plastic bags for import and export: Gas chromatography-mass spectrometry

GM Europe, Styrene impurity

GOSTR, Styrene impurity

  • GOST 23492-2019 Butadiene-methylstyrene SKMS-30ARKPN and butadiene-styrene SKS-30ARKPN rubbers. Specifications
  • GOST 15627-2019 Butadiene-methylstyrene SKMS-30ARK and butadiene-styrene SKS-30ARK synthetic rubbers. Specifications
  • GOST 11138-2019 Butadiene-methylstyrene SKMS-30ARKM-15 and butadiene-styrene SKS-30ARKM-15 synthetic rubbers. Specifications
  • GOST 15628-2019 Butadiene-methylstyrene SKMS-30ARKM-27 and butadiene-styrene SKS-30ARKM-27 synthetic rubber. Specifications
  • PNST 407-2020 ？Green？ standards. Styrene-acrylic nanodispersions. Criteria and indicators for confirm compliance with ？green？ products

Group Standards of the People's Republic of China, Styrene impurity

  • T/CIPR 064-2022 Styrene-ethylene-ethylene-propylene block copolymer modified foam
  • T/GZPPIA 01-2018 Polystyrene buoyancy
  • T/ZZB 2752-2022 Styrene for polymerization-specificatioan
  • T/JSBC 4-2020 Recycled polystyrene compound
  • T/NBSL 002-2022 Flame Retardant ABS
  • T/JTAIT 10-2021 Infrared spectroscopic method for rapid detection of polyethylene, polypropylene, polystyrene, polyvinyl chloride, ethylene-vinyl acetate copolymer and polyethylene terephthalate in plastic products
  • T/CSRA 7-2021 Limit of styrene volatilization standards for low styrene emission unsaturated polyester resin
  • T/CSRA 21-2022 Plastic composition test Polyethylene (PE), polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), ethylene-vinyl acetate copolymer (EVA), polyethylene terephthalate in plastic products Esters (PET) Qualitative Analysis Method
  • T/ZZB 1674-2020 Acrylonitrile-Butadiene-Styrene（ABS） children's building block toys
  • T/GDPIA 39-2021 Paint-free acrylonitrile-butadiene-styrene (ABS) material
  • T/CPPIA 6-2021 Determination of Hexabromocyclododecane in Expanded Polystyrene and Extruded Polystyrene--Gas Chromatography-Mass Spectrometry
  • T/SDEPI 013-2021 α-methyl styrene which recycled from phenol of residual liquid
  • T/JGWS 3-2021 Reinforced recycled acrylonitrile-butadiene-styrene compound
  • T/JSBC 3-2020 Flame retardant recycled acrylonitrile-butadiene-styrene compound
  • T/CASME 47-2022 Polystyrene (PS) prism anti glare plate

US-AAMA, Styrene impurity

  • AAMA 304-2007 Voluntary Specification for Acrylonitrile-Butadiene-Styrene(ABS) Exterior Profiles Capped with ASA or ASA/PVC Blends

European Committee for Standardization (CEN), Styrene impurity

  • EN ISO 19065-1:2014 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 1: Designation system and basis for specifications
  • EN ISO 6402-1:1999 Plastics - Impact-Resistant Acrylonitrile/Styrene (ASA,AES,ACS) Moulding and Extrusion Materials, Excluding Butadiene-Modified Materials - Part 1: Designation System and Basis for Specifications ISO 6402-1:1997
  • EN ISO 6402-1:2002 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile- (ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile- (chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 1: Designation system and basis for specificatio
  • EN ISO 6402-2:1999 Plastics - Impact-Resistant Acrylonitrile/Styrene (ASA, AES, ACS) Moulding and Extrusion Materials, Excluding Butadiene-Modified Materials - Part 2: Preparation of Test Specimens and Determination of Properties ISO 6420-2:1994
  • EN ISO 6402-2:2003 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-( ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-( chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 2: Preparation of test specimens and determinat
  • EN ISO 1265:1997 Plastics - Polyvinyl Chloride Resins - Determination of Number of Impurities and Foreign Particles ISO 1265: 1979
  • EN ISO 1265:2007 Plastics - Poly(vinyl chloride) resins - Determination of number of impurities and foreign particles (ISO 1265:2007)

Danish Standards Foundation, Styrene impurity

  • DS/EN ISO 6402-1:2002 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 1: Designation system and basis for specifications
  • DS/EN ISO 6402-2:2004 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 2: Preparation of test specimens and determination
  • DS/EN ISO 1265:2007 Plastics - Poly(vinyl chloride) resins - Determination of number of impurities and foreign particles

Lithuanian Standards Office , Styrene impurity

  • LST EN ISO 6402-2:2004 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 2: Preparation of test specimens and determination
  • LST EN ISO 6402-1:2003 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 1: Designation system and basis for specifications
  • LST EN ISO 6402-1:2002 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 1: Designation system and basis for specifications
  • LST EN ISO 19065-1:2015 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 1: Designation system and basis for specifications
  • LST EN ISO 1265:2007 Plastics - Poly(vinyl chloride) resins - Determination of number of impurities and foreign particles (ISO 1265:2007)

AENOR, Styrene impurity

  • UNE-EN ISO 19065-1:2015 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 1: Designation system and basis for specifications
  • UNE-EN ISO 6402-2:2004 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 2: Preparation of test specimens and determination
  • UNE-ISO 2561:2014 Plastics. Determination of residual styrene monomer in polystyrene (PS) and impact-resistant polystyrene (PS-I) by gas chromatography
  • UNE-EN ISO 1265:2007 Plastics - Poly(vinyl chloride) resins - Determination of number of impurities and foreign particles (ISO 1265:2007)

GM North America, Styrene impurity

国家市场监督管理总局、中国国家标准化管理委员会, Styrene impurity

  • GB/T 3915-2021 Styrene for industrial use
  • GB/T 12688.1-2019 Test method of styrene for industrial use—Part 1：Determination of purity and hydrocarbon impurities—Gas chromatography
  • GB/T 38271-2019 Plastics—Determination of residual styrene monomer in polystyrene (PS) and impact-resistant polystyrene (PS-I)—Gas chromatography
  • GB/T 8655-2019 Styrene-butadiene rubber (SBR)1500，1502
  • GB/T 38286-2019 Polyethylene(PE)，polypropylene(PP) and polystyrene(PS) resin―Determination of peroxide value
  • GB/T 37388-2019 Solution-polymerized styrene butadiene rubber（SSBR）
  • GB/T 40006.6-2021 Plastics—Recycled plastics—Part 6: Polystyrene（PS）and impact-resistant polystyrene(PS-I) materials
  • GB/T 37198-2018 Impact-resistant polystyrene（PS-I）resin

FI-SFS, Styrene impurity

Professional Standard - Light Industry, Styrene impurity

TH-TISI, Styrene impurity

  • TIS 655.3-2011 Plastic utensils for food.part 3: acrylonitrile-butadiene-styrene and styrene.acrylonitrile
  • TIS 655.1-2010 Plastic utensils for food.part 1: polyethylene, polpropylene, polystyrene, poly(ethylene terephthalate), poly (vinyl alcohol) and poly(methyl pentene)
  • TIS 2357-2007 Acrylonitrile.butadiene.styrene (abs) pressure pipe
  • TIS 2438-2009 Polystyrene foam mattresses
  • TIS 836-1988 Standard for polystyrene resin

Standard Association of Australia （SAA）, Styrene impurity

U.S. Military Regulations and Norms, Styrene impurity

Indonesia Standards, Styrene impurity

ES-UNE, Styrene impurity

  • UNE-EN ISO 19065-2:2020 Plastics - Acrylonitrile-styrene-acrylate (ASA), acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) and acrylonitrile-(chlorinated polyethylene)-styrene (ACS) moulding and extrusion materials - Part 2: Preparation of test specimens and determinat...

国家能源局, Styrene impurity

  • SH/T 1148-2018 Determination of purity and hydrocarbon impurities of ethylbenzene for industrial use by gas chromatography
  • SH/T 1626-2017 Oil-extended styrene-butadiene rubber (SBR) 1712

(U.S.) Ford Automotive Standards, Styrene impurity

GM Daewoo, Styrene impurity

GM Holden Ltd, Styrene impurity

Guangdong Provincial Standard of the People's Republic of China, Styrene impurity

Professional Standard - Building Materials, Styrene impurity

Hebei Provincial Standard of the People's Republic of China, Styrene impurity

CU-NC, Styrene impurity

  • NC 30-66-1987 Plastics Ináustry. Determination of the Number of Impurities and Strange Partióles in Poli (Polivinyl Chloride). Testing Methods

HU-MSZT, Styrene impurity

ZA-SANS, Styrene impurity

国家建筑材料工业局, Styrene impurity

SG-SPRING SG, Styrene impurity

  • SS 356-1991 SPECIFICATION FOR Disposable Polystyrene Cutlery

Malaysia Standards, Styrene impurity

  • MS 1502-2000 Specification for disposable polystyrene cutlery

BELST, Styrene impurity

  • STB 1437-2004 Insulating expanded polystyrene slabs. Specifications

轻工业部, Styrene impurity

Professional Standard - Machinery, Styrene impurity

  • JB/T 53124-1999 Expandable polystyrene foam molding machine product quality classification

  Impurities, Polystyrene impurities, Impurity identification, Impurities and, Impurity test, Solvent impurities, Impurity, related impurities, Impurity profile, Chromatographic impurities, Nitrogen impurities, metal impurities, Styrene impurities, Styrene impurity, Elemental Impurities Inorganic Impurities, Impurity Quantitative Impurity, Source of Impurities Impurities, Impurity Identification Impurities, Inorganic and elemental impurities, Foreign Impurities and Impurities.

 



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