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Catechol content method

Catechol content method, Total:186 items.

In the international standard classification, Catechol content method involves: Organic chemicals, Analytical chemistry, Non-ferrous metals, Leather technology, Adhesives, Metalliferous minerals, Textile fibres, Products of the textile industry, Wood-based panels, Water quality, Optics and optical measurements, Paint ingredients, Wastes, Photography, Power stations in general, Paints and varnishes, Farming and forestry, Products of the chemical industry, Lubricants, industrial oils and related products, Fertilizers, Plastics, Ferrous metals, Processes of the textile industry, Inorganic chemicals, Measurement of fluid flow, Raw materials for rubber and plastics, Ferroalloys, Fuels.

International Organization for Standardization (ISO), Catechol content method

ISO 1897-8:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part VIII : Determination of o-cresol content (Cresylic acid and xylenols only)
ISO 1897-2:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part II : Determination of water; Dean and Stark method
ISO 1897-9:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part IX : Determination of m-cresol content (Cresylic acid only)
ISO 1897-1:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part I : General
ISO 1389-6:1977 Phthalic anhydride for industrial use; Methods of test; Part VI : Determination of phthalic anhydride content; Titrimetric method
ISO 1897-7:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part VII : Measurement of colour (Cresylic acid and xylenols only)
ISO 1897-11:1983 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 11 : Determination of crystallizing point (Excluding cresylic acid and xylenols)
ISO 1897-6:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part VI : Test for absence of hydrogen sulphide (Cresylic acid and xylenols only)
ISO 1897-12:1983 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 12 : Determination of distillation characteristics (Cresylic acid and xylenols only)
ISO 1897-13:1983 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 13 : Determination of residue on distillation (Cresylic acid and xylenols only)
ISO 1897-10:1982 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 10 : Determination of dry residue after evaporation on a water bath (Excluding cresylic acid and xylenols)
ISO 1897-3:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 3 : Determination of neutral oils and pyridine bases
ISO 1897-5:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part V : Visual test for impurities insoluble in water (Phenol only)
ISO 1897-4:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part IV : Visual test for impurities insoluble in sodium hydroxide solution (Excluding cresylic acid and xylenols)
ISO 14389:2014 Textiles - Determination of the phthalate content - Tetrahydrofuran method
ISO 14389:2022 Textiles — Determination of the phthalate content — Tetrahydrofuran method
ISO 6795:1983 Phthalic and adipic esters for industrial use; Determination of free alcohols content; Spectrometric method
ISO 1389-7:1977 Phthalic anhydride for industrial use; Methods of test; Part VII : Determination of maleic anhydride content; Polarographic method
ISO 7760:2001 Photography - Processing waste - Determination of hydroquinone
ISO 7760:1986 Photographic processing waste; Determination of hydroquinone content; Spectrophotometric method
ISO 1389-10:1977 Phthalic anhydride for industrial use; Methods of test; Part X : Determination of 1,4- naphthaquinone content; Colorimetric method
ISO 1385-5:1977 Phthalate esters for industrial use; Methods of test; Part V : Determination of ester content; Titrimetric method after saponification
ISO 1389-11:1977 Phthalic anhydride for industrial use — Methods of test — Part 11: Determination of iron content — 2,2'- Bipyridyl photometric method
ISO 1385-4:1977 Phthalate esters for industrial use; Methods of test; Part IV : Determination of acidity to phenolphthalein; Titrimetric method
ISO 1389-9:1977 Phthalic anhydride for industrial use; Methods of test; Part IX : Determination of impurities oxidizable in the cold by potassium permanganate; Iodometric method
ISO 3709:1976 Phosphoric acid for industrial use (including foodstuffs); Determination of oxides of nitrogen content; 3,4- Xylenol spectrophotometric method

TR-TSE, Catechol content method

TS 1961-1975 CRESYLIC ACID AND XYLENOLS FOR INDUSTRIAL USE DETERMINATION OF o-CRE?OL CONTENT

Korean Agency for Technology and Standards (KATS), Catechol content method

KS M 1911-2009 Phthalic anhydride for industrial use－Methods of test－Determination of phthalic anhydride content－Titrimetric method
KS M 1912-2009 Phthalic anhydride for industrial use－Methods of test－Determination of maleic anhydride content－Polarographic method
KS M 1916-2009 Phthalic anhydride for industrial use－Methods of test－Determination of iron content－2,2′-bipyridyl photometric method
KS M 1912-2002(2007) Phthalic anhydride for industrial use－Methods of test－Determination of maleic anhydride content－Polarographic method
KS M 1989-2013 Phthalic and adipic for industrial use－Determination of free alcohols content－Spectrometric method
KS M 1915-2009 Phthalic anhydride for industrial use－Methods of test－Determination of 1,4-naphthaquinone content－Colorimetric method
KS M 1916-2002(2007) Phthalic anhydride for industrial use－Methods of test－Determination of iron content－2,2′-bipyridyl photometric method
KS M 1989-2002(2012) Phthalic and adipic for industrial use－Determination of free alcohols content－Spectrometric method
KS K 0733-2007 Test method for determination of the pentachlorophenol content in textiles and/or leathers
KS K 0733-2014 Test method for determination of the pentachlorophenol content in textiles and/or leathers
KS K 0733-2017 Test method for determination of the pentachlorophenol content in textiles and/or leathers
KS M 1914-2002(2007) Phthalic anhydride for industrial use－Methods of test－Determination of impurities oxidizable in the cold by potassium permanganate－Iodometric method

Professional Standard - Petrochemical Industry, Catechol content method

SH/T 1485.4-1995 Determination of tert-butylcatechol content in divinylbenzene for industrial use Spectrophotometric method
SH/T 1613.2-1995 Determination of the purity of petroleum o-xylene and the content of hydrocarbon impurities by gas chromatography
SH/T 0792-2007 Standard test method for 2,6-di-tert-butyl-p-cresol and 2,6-di-tert-butyl phenol in electrical insulating oil by infrared absorption

Association Francaise de Normalisation, Catechol content method

NF T20-811:1983 Butadiene for industrial use. Determination of tert-butyl-catechol (tbc). 4-(1,1-dimethylethyl)-1,2 benzenediol. Spectrometric method.
NF G08-016*NF EN ISO 14389:2014 Textiles - Determination of the phthalates content - Tetrahydrofuran method
NF T75-636*NF EN 16521:2014 Cosmetics - Analytical methods - GC/MS method for the identification and assay of 12 phthalates in cosmetic samples ready for analytical injection
NF EN 12921-1+A1:2010 Produits de préservation du bois - Créosote et bois créosoté - Méthodes d'échantillonnage et d'analyse - Partie 3 : détermination de la teneur en Benzo(a)pyrène de la créosote
NF EN 1014-3:2010 Produits de préservation du bois - Créosote et bois créosoté - Méthodes d'échantillonnage et d'analyse - Partie 3 : détermination de la teneur en Benzo(a)pyrène de la créosote

Professional Standard - Non-ferrous Metal, Catechol content method

YS/T 248.2-1985 Crude lead chemical analysis method Catechol violet photometric method Determination of tin content
YS/T 520.2-2007 Chemical analysis of gallium.Part 2: Determination of lead content.The 4-(2-pyridy lazo)-resorcinol spectrophotometric method
YS/T 534.4-2006 Aluminum Hydroxide Chemical Analytical Method for the Determination of Ferric Oxide by O-Phenanthrophenanthrene Spectrophotometry
YS/T 520.2-2006 Gallium Chemical Analysis Method 4-(2-Pyridylazo)-Resorcinol Spectrophotometric Determination of Lead Content
YS/T 534.4-2007 Chemical analysis methods of aluminium hydroxide.Part 4:Determination of iron oxide content.Orthophenanthroline photometric method
YS/T 575.5-2007 Methods for chemical analysis of bauxite.Part5:Determination of oxide content.Orthophenanthroline photometric method

RU-GOST R, Catechol content method

GOST 24445.2-1980 Phthalic anhydride for industrial use. Methods for the determination of phthalic acid
GOST R 50484-1993 Phthalic anhydride for industrial use. Methods of test. Part 4. Determination of phthalic anhydride content. Titrimetric method
GOST R ISO 17070-2017 Leather. Chemical tests. Method for determination of tetrachlorophenol-, trichlorophenol-, dichlorophenol-, monochlorophenol-isomers and pentachlorophenol content
GOST 24445.4-1992 Phthalic anhydride for industrial use. Method for determination of 1,4-naphthaquinone
GOST 24445.3-1980 Phthalic anhydride for industrial use. Method for the determination of maleic anhydride
GOST 24445.1-1980 Phthalic anhydride for industrial use. Method for the determination of phthalic anhydride
GOST R ISO 14389-2016 Textiles. Determination of the phthalate content. Tetrahydrofuran method
GOST R 50483-1993 Phthalic anhydride for industrial use. Methods of test. Part 2. Measurement of colour of the molten material

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Catechol content method

GB/T 13748.2-2005 Chemical analysis methods of magnesium and magnesium alloys.Determination of tin content.Pyrocatechol violet spectrophotometric method
GB/T 12688.7-1990 Styrene for industrial use--Determination of content of inhibitor (P-tert-butylcatechol)--Colorimetric method
GB/T 12688.8-1998 Styrene for industrial use--Determination of content of inhibitor (p-tert-butylcatechol)--Spectrophotometric method
GB/T 12688.8-2011 Test method of styrene for industrial use—Part 8:Determination of content of inhibitor(p-tert-butylcatechol)—Spectrophotometric method
GB/T 20388-2016(英文版) Textiles—Determination of the phthalate content— Tetrahydrofuran method
GB/T 6730.34-1986 Methods for chemical analysis of iron ores--The pyrocatechol violet-cetyl trimethylamine bromide photometric method for the determination of tin content
GB/T 6489.3-2001 Phthalate esters for industrial use-Methods of test-Determination of ester content-Titrimetric method after saponification
GB/T 30646-2014 Determination of phthalate plasticizers content in coatings.Gas chromatography/mass spectrometry method
GB/T 13748.7-2005 Chemical analysis methods of magnesium and magnesium alloys.Determination of zirconium content.Xylenol orange spectrophotometric method
GB/T 14326-1993 Determination of carbon disulfide content in benzene
GB/T 14326-2009 Determination of carbon disulfide content in benzene
GB/T 14074.13-1993 Test methods for wood adhesives and their resins - Determination of free phenol content
GB/T 223.42-1985 Methods for chemical analysis of iron,steel and alloy--The anion-exchange separation-bromopyrogallol red photometric method for the determination of tantalum content
GB 223.42-1985 Chemical analysis method of iron, steel and alloy Ion exchange separation of bromide o Glycinol red photometric method for determination of tantalum content
GB/T 6489.1-2001 Phthalate esters for industrial use-Methods of test-Measurement of colour after heat treatment
GB/T 6610.4-2003 Chemical analysis methods of aluminium hydroxide Determination of ferric oxide content-Orthophenanthroline photometric method
GB/T 4375.2-1984 Methods for chemical analysis of gallium--The 4-(2-pyridylazo)-resorcinol photometric method for the determination of lead content
GB/T 19421.8-2003 Test methods of crystalline layered sodium disilicate--Phenanthroline photometric methods for determination of iron oxide content
GB/T 13748.3-1992 Magnesium and its alloys--Determination of zirconium content--Xylenol orange spectrophotometric method
GB/T 6609.4-2004 Chemical analysis methods and determination of physical performance of alumina Determination of ferric oxide content-Orthophenanthroline photometric method
GB/T 13748.9-2005 Chemical analysis methods of magnesium and magnesium alloys.Determination of iron content.Orthopenanthroline spectrophotometric method

American Society for Testing and Materials (ASTM), Catechol content method

ASTM D1579-01(2018) Standard Test Method for Filler Content of Phenol, Resorcinol, and Melamine Adhesives
ASTM D1579-97 Standard Test Method for Filler Content of Phenol, Resorcinol, and Melamine Adhesives
ASTM D1579-01 Standard Test Method for Filler Content of Phenol, Resorcinol, and Melamine Adhesives
ASTM D1579-01(2008) Standard Test Method for Filler Content of Phenol, Resorcinol, and Melamine Adhesives
ASTM D1579-01(2013) Standard Test Method for Filler Content of Phenol, Resorcinol, and Melamine Adhesives
ASTM D6143-18 Standard Test Method for Iron Content of Bisphenol A (4,4′ - Isopropylidenediphenol)
ASTM D1582-98(2004) Standard Test Method for Nonvolatile Content of Liquid Phenol, Resorcinol, and Melamine Adhesives
ASTM D1582-98 Standard Test Method for Nonvolatile Content of Liquid Phenol, Resorcinol, and Melamine Adhesives
ASTM D1582-98(2023) Standard Test Method for Nonvolatile Content of Liquid Phenol, Resorcinol, and Melamine Adhesives
ASTM D6143-23 Standard Test Method for Iron Content of Bisphenol A (4,4′ - Isopropylidenediphenol)
ASTM D1582-98(2011) Standard Test Method for Nonvolatile Content of Liquid Phenol, Resorcinol, and Melamine Adhesives
ASTM D1582-98(2017) Standard Test Method for Nonvolatile Content of Liquid Phenol, Resorcinol, and Melamine Adhesives
ASTM D1307-56 Method of Test for Phthalic Anhydride Content of Alkyd Resins and Esters Containing Other Dibasic Acids (Spectrophotometric)
ASTM D4590-09 Standard Test Method for Colorimetric Determination of p-tert-Butylcatechol In Styrene Monomer or AMS (alpha-Methylstyrene) by Spectrophotometry
ASTM D4590-13 Standard Test Method for Colorimetric Determination of p-tert-Butylcatechol In Styrene Monomer or AMS (alpha;ndash;Methylstyrene) by Spectrophotometry
ASTM D3160-20 Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (α–Methylstyrene)
ASTM D4590-95A Standard Test Method for Colorimetric Determination of p-tert-Butylcatechol In Styrene Monomer or AMS (alpha-Methylstyrene) by Spectrophotometry
ASTM D4590-00 Standard Test Method for Colorimetric Determination of p-tert-Butylcatechol In Styrene Monomer or AMS (alpha-Methylstyrene) by Spectrophotometry
ASTM D3160-16 Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (α&x2013;Methylstyrene)
ASTM D6143-13 Standard Test Method for Iron Content of Bisphenol A (4,4prime; - Isopropylidenediphenol)
ASTM D4590-06 Standard Test Method for Colorimetric Determination of p-tert-Butylcatechol In Styrene Monomer or AMS (alpha-Methylstyrene) by Spectrophotometry
ASTM D3160-96a Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (alpha-Methylstyrene)
ASTM D3160-03 Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (alpha-Methylstyrene)
ASTM D3160-07 Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (alpha-Methylstyrene)
ASTM D3160-12 Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (agr;ndash;Methylstyrene)
ASTM D4590-22 Standard Test Method for Colorimetric Determination of p-tert-Butylcatechol In Styrene Monomer or AMS (α–Methylstyrene) by Spectrophotometry
ASTM D6143-05 Standard Test Method for Iron Content of Bisphenol A (4,4180; - Isopropylidenediphenol)
ASTM F3414-20 Standard Test Method for Determining Ortho-Phthalate Concentration in Flooring Containing Polyvinyl Chloride
ASTM D8133-21 Standard Test Method for Determination of Low Level Phthalates in Poly(Vinyl Chloride) Plastics by Solvent Extraction—Gas Chromatography/Mass Spectrometry
ASTM D1631-10(2018)e1 Standard Test Method for Water in Phenol and Related Materials by the Iodine Reagent Method
ASTM D8133-20 Standard Test Method for Determination of Low Level Phthalates in Poly(Vinyl Chloride) Plastics by Solvent Extraction—Gas Chromatography/Mass Spectrometry
ASTM D8133-18 Standard Test Method for Determination of Low Level Phthalates in Poly(Vinyl Chloride) Plastics by Solvent Extraction—Gas Chromatography/Mass Spectrometry
ASTM D7823-18 Standard Test Method for Determination of Low Level Phthalates in Poly (Vinyl Chloride) Plastics by Thermal Desorption—Gas Chromatography/Mass Spectrometry
ASTM D7823-20 Standard Test Method for Determination of Low Level Phthalates in Poly (Vinyl Chloride) Plastics by Thermal Desorption—Gas Chromatography/Mass Spectrometry
ASTM D8133-23 Standard Test Method for Determination of Low Level Phthalates in Poly(Vinyl Chloride) Plastics by Solvent Extraction—Gas Chromatography/Mass Spectrometry
ASTM D8133-17 Standard Test Method for Determination of Low Level, Regulated Phthalates in Poly(Vinyl Chloride) Plastics by Solvent Extraction—Gas Chromatography/Mass Spectrometry
ASTM D8345-21 Standard Test Method for Determination of an Emission Parameter for Phthalate Esters and Other Non-Phthalate Plasticizers from Planar Polyvinyl Chloride Indoor Materials for Use in Mass Transfer Model
ASTM D5580-02(2007) Standard Test Method for Determination of Benzene, Toluene, Ethylbenzene, p/m-Xylene, o-Xylene, C₉ and Heavier Aromatics, and Total Aromatics in Finished Gasoline by Gas Chromatography

YU-JUS, Catechol content method

JUS H.B8.910-1997 Determination of total inhibitor content (p-tertiaiy-butylcatechol) of light hydrocarbons - Spectrophotometric method
JUS H.B8.433-1984 Di-2—ethylhexyl phthalate for industrial use. Determination of ester content (as DOP). Volumetric method.
JUS H.B8.442-1984 Phthalate estars for industrial use. Determination of ash. Gravimetric method
JUS H.B8.443-1984 Phthaiate and adi pate esters for industrial use. Determination of free alcohols content. Spectrophoto-metric method

Professional Standard - Commodity Inspection, Catechol content method

SN 0659-1997 Method for the determination of o-phenylphenol residues in vegetables for export.Liquid chromatography
SN 0597-1996 Method for the determination of o-phenylphenol and its sodium salt residues in fruits for export
SN/T 1623-2005 Inspection of thiabendazole、o-phenylphenol、diphenyl and imazalil in disposable chopsticks for import and export--Liquid chromatography
SN/T 3995-2014 Textiles for import and export.Quantitative analysis method of phthalates
SN/T 3641-2013 Determination of 4-hexylresorcinol residues in aquatic product for export
SN/T 1734-2006 Inspection of 4,6-dinitro-cresol residues in fruits for import and export--GC-MS method

Professional Standard - Chemical Industry, Catechol content method

HG 5-1342-1980 Determination method of free phenol content of phenolic resin

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会, Catechol content method

GB/T 6730.34-2017 Iron ores—Determination of tin content—Pyrocatechol violet cetyl trimet hylamine bromide spectrophotometric method
GB/T 35104-2017 Determination of plasticizers (phthalic acid esters) in fertilizer—Gas chromatography-mass spectrometry(GC-MS)

European Committee for Standardization (CEN), Catechol content method

EN ISO 14389:2022 Textiles - Determination of the phthalate content - Tetrahydrofuran method (ISO 14389:2022)
EN ISO 14389:2014 Textiles - Determination of the phthalate content - Tetrahydrofuran method
prEN ISO 14389:2021 Textiles - Determination of the phthalate content - Tetrahydrofuran method (ISO/DIS 14389:2021)

Military Standard of the People's Republic of China-General Armament Department, Catechol content method

GJB 770.310-1993 Test methods for gunpowder analysis: Determination of dinitrotoluene, dibutyl phthalate and 2-nitrodiphenylamine in double base powder by gas chromatography
GJB 770.311-1993 Test methods for gunpowder analysis: Determination of nitroglycerin, dinitrotoluene, No. 2 neutralizing agent and dibutyl phthalate in double base powder by gas chromatography
GJB 770.305-1989 Test methods for gunpowder analysis: Determination of nitroglycerin, No. 2 neutralizing agent, diphenylamine, dibutyl phthalate and dinitrotoluene in double-base propellants by reversed-phase liquid chromatography
GJB 770.304-1989 Test methods for gunpowder analysis: Determination of nitroglycerin, dinitrotoluene, No. 2 intermediate and dibutyl phthalate in double-base propellants by normal phase liquid chromatography
GJB 533.28-1988 Detection methods for 45 components of submarine cabin air. Determination of benzene, toluene, ethylbenzene, xylene, and 1,2-dichloroethane content by gas chromatography.

CU-NC, Catechol content method

NC 35-19-1968 Estimation of water content of essential oils (Cuantitative method)

Group Standards of the People's Republic of China, Catechol content method

T/PZSGXH 001-2021 Determination of free phenol content in phenolic piywood
T/AQSPMK 006-2023 Test method of artificial leather and synthetic leather—Determination of DINPcontent in plasticizers
T/AQSPMK 0006-2023 Test method of artificial leather and synthetic leather — Determination of DINPcontent in plasticizers

Indonesia Standards, Catechol content method

SNI 19-1656-1989 Water and waste water, Test method for phenol content
SNI 06-6989.30-2005 Water and wastewater - Part 30: Test methods of ammonia content with spectrophotometers by phenates

British Standards Institution (BSI), Catechol content method

BS EN ISO 14389:2014 Textiles. Determination of the phthalate content. Tetrahydrofuran method
BS 6782-16.2:2000 Binders for paints - Methods of test for alkyd resins - Determination of phthalic anhydride content
BS 6068-2.49:1995 Water quality. Physical, chemical and biochemical methods. Determination of aluminium. Spectrometric method using pyrocatechol violet
BS EN ISO 14389:2022 Tracked Changes. Textiles. Determination of the phthalate content. Tetrahydrofuran method
21/30410977 DC BS EN ISO 14389. Textiles. Determination of the phthalate content. Tetrahydrofuran method
BS EN 16956:2017 Cosmetics. Analytical methods. HPLC/UV method for the identification and assay of hydroquinone, ethers of hydroquinone and corticosteroids in skin whitening cosmetic products
BS EN 1014-3:1998 Wood preservatives - Creosote and creosoted timber - Methods of sampling and analysis - Determination of the benzo[a]pyrene content of creosote
BS EN 1014-3:2010 Wood preservatives - Creosote and creosoted timber - Methods of sampling and analysis - Determination of the benzo(a)pyrene content of creosote
BS EN 1014-4:2010 Wood preservatives - Creosote and creosoted timber - Methods of sampling and analysis - Determination of the water-extractable phenols content of creosote
BS EN 16521:2014 Cosmetics. Analytical methods. GC/MS method for the identification and assay of 12 phthalates in cosmetic samples ready for analytical injection

German Institute for Standardization, Catechol content method

DIN EN ISO 14389:2023-01 Textiles - Determination of the phthalate content - Tetrahydrofuran method (ISO 14389:2022); German version EN ISO 14389:2022
DIN EN 16956:2017-12 Cosmetics - Analytical methods - HPLC/UV method for the identification and assay of hydroquinone, ethers of hydroquinone and corticosteroids in skin whitening cosmetic products; German version EN 16956:2017
DIN EN ISO 14389:2023 Textiles - Determination of the phthalate content - Tetrahydrofuran method (ISO 14389:2022)
DIN EN ISO 14389:2014 Textiles - Determination of the phthalate content - Tetrahydrofuran method (ISO 14389:2014); German version EN ISO 14389:2014
DIN EN 1014-3:2010-11 Wood preservatives - Creosote and creosoted timber - Methods of sampling and analysis - Part 3: Determination of the benzo(a)pyrene content of creosote; German version EN 1014-3:2010

ES-UNE, Catechol content method

UNE-EN ISO 14389:2023 Textiles - Determination of the phthalate content - Tetrahydrofuran method (ISO 14389:2022)

Japanese Industrial Standards Committee (JISC), Catechol content method

JIS K 6751-2:1999 Testing methods for phthalic esters -- Part 2: Determination of acidity to phenolphthalein -- Titrimetric method
JIS K 6751-3:1999 Testing methods for phthalic esters -- Part 3: Determination of ester content -- Titrimetric method after saponification
JIS K 6751-3 ERRATUM 1:2002 Testing methods for phthalic esters -- Part 3: Determination of ester content -- Titrimetric method after saponification (Erratum 1)

ES-AENOR, Catechol content method

AENOR, Catechol content method

UNE-EN ISO 14389:2015 Textiles - Determination of the phthalate content - Tetrahydrofuran method (ISO 14389:2014)
UNE-EN 1014-3:2010 Wood preservatives - Creosote and creosoted timber - Methods of sampling and analysis - Part 3: Determination of the benzo(a)pyrene content of creosote

Professional Standard - Electricity, Catechol content method

DL/T 502.9-2006 Analytical methods of steam and water in power plants Part 9: Determination of aluminum (Spectrometric method using pyrocatechol violet)

Shandong Provincial Standard of the People's Republic of China, Catechol content method

DB37/T 339-2003 Method for Determination of Purity of Phthalic Anhydride - Differential Scanning Calorimetry (DSC)

Professional Standard - Forestry, Catechol content method

LY/T 1985-2011 Quantitative determination of pentachlorophenol in antiseptic wood and wood-based panels

KR-KS, Catechol content method

KS K 0733-2017(英文版) Test method for determination of the pentachlorophenol content in textiles and/or leathers

Jilin Provincial Standard of the People's Republic of China, Catechol content method

DB22/T 263-2018 Determination of industrial 2,4-di-tert-butylphenol content by gas chromatography with large bore capillary column
DB22/T 262-2018 Determination of industrial 2,6-di-tert-butylphenol content by gas chromatography with large bore capillary column

PL-PKN, Catechol content method

PN C89417-1990 Plastics Compounds and products from poly(vinyl chloride) Determination of phthalates content by gas chromatography method
PN Z04229-02-1992 Air purity protection ests for content of tin and its ompounds etermination of tin and its inorganic ompounds in work places y spectrophotometric method with yrocatechol violet
PN Z04016-03-1989 Air purity protection -- Tests for benzene and its homologous compounds with saturated side chain -- Determination of benzene, toluene, ethylbenzene, (m+p)-xylene, izopropylbenzene and o-xylene in ambient air (immission) by gas chromatography with sample

Professional Standard - Aviation, Catechol content method

HB 5218.15-1995 Aluminum Alloy Chemical Analysis Method Xylenol Orange Photometric Determination of Dissolved Zirconium Content
HB 5297.7-2001 Titanium Alloy Chemical Analysis Method Diphenylcarbohydrazide Spectrophotometric Determination of Chromium Content
HB 5218.19-1995 Aluminum Alloy Chemical Analysis Method Diphenylcarbazide Spectrophotometric Determination of Chromium Content
HB 5220.46-1995 Determination of bismuth content by semi-xylenol orange absorptiophotometry method for chemical analysis of superalloys

Danish Standards Foundation, Catechol content method

DS/EN 1014-3:2010 Wood preservatives - Creosote and creosoted timber - Methods of sampling and analysis - Part 3: Determination of the benzo(a)pyrene content of creosote

Lithuanian Standards Office , Catechol content method

LST EN 1014-3-2010 Wood preservatives - Creosote and creosoted timber - Methods of sampling and analysis - Part 3: Determination of the benzo(a)pyrene content of creosote

工业和信息化部, Catechol content method

YS/T 424.3-2022 Methods for chemical analysis of titanium diboride powder Part 3: Determination of iron content 1,10-phenanthroline spectrophotometric method