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4-Hydroxybenzoic acid detection method

4-Hydroxybenzoic acid detection method, Total:142 items.

In the international standard classification, 4-Hydroxybenzoic acid detection method involves: Food products in general, Farming and forestry, Textile fibres, Edible oils and fats. Oilseeds, Organic chemicals, Tobacco, tobacco products and related equipment, Animal feeding stuffs, General methods of tests and analysis for food products, Products of the chemical industry, Testing of metals, Analytical chemistry, Non-metalliferous minerals, Plastics, Raw materials for rubber and plastics, Beverages, Non-ferrous metals, Inorganic chemicals, Water quality, Adhesives, Products of the textile industry, Paint ingredients, Soil quality. Pedology, Spices and condiments. Food additives, Sugar. Sugar products. Starch, Air quality, Optics and optical measurements, Materials and articles in contact with foodstuffs, Medical equipment.

Professional Standard - Agriculture, 4-Hydroxybenzoic acid detection method

237药典三部-2020 Content Determination Method 3116 Determination of Methyl p-Hydroxybenzoate and Propyl p-Hydroxybenzoate
193药典三部-2010 Appendix VI VIT Determination of Methyl p-Hydroxybenzoate and Propyl p-Hydroxybenzoate
210药典四部-2015 3100 Determination method of content 3116 Determination method of methyl p-hydroxybenzoate and propyl p-hydroxybenzoate
198药典四部-2020 3100 Determination method of content 3116 Determination method of methyl p-hydroxybenzoate and propyl p-hydroxybenzoate
218药典三部-2015 Content determination method 3116 General rules for the determination of methyl p-hydroxybenzoate and propyl p-hydroxybenzoate content 59
JAP-045 Copper terephthalate detection method
GB/T 5009.30-1996 Determination method of tert-butylhydroxyanisole (BHA) and 2,6-di-tert-butyl-p-cresol (BHT) in food
NY/T 1602-2008 Determination of butylated hydroxyanisole, butylated hydroxytoluene and tertiary butylhydroquinone content in vegetable oil. High performance liquid chromatography
水产品质量安全检验手册 7.3.3.0-2005 Chapter 7 Inspection of Additives in Aquatic Products Section 3 Determination of Preservatives in Aquatic Products 3. Determination of Parabens - Gas Chromatography (GBT 5009.31-2003)

CZ-CSN, 4-Hydroxybenzoic acid detection method

CSN 58 8772-1994 Methods of test for fats and oils Determination and detection of ethyl and propyl ester of p-hydroxybenzoic acid
CSN 65 0351-1967 Testing methods of phthalates

Professional Standard - Commodity Inspection, 4-Hydroxybenzoic acid detection method

SN/T 1303-2003 Method for the determination of benzoic acid,sorbic acid and p-hydroxybenzoates in royal jelly-Liquid chromatographic method
SN/T 1121-2002 Determination method of benzoic acid, sorbic acid and paraben preservatives in traditional Chinese medicine preparations by liquid chromatography
SN/T 4047-2014 Determination of 4-hydroxybenzoic acid ester in food for export
SN/T 4262-2015 Determination of benzoic acid、sorbic acid and p-hydroxybenzoic acid esters antiseptics in milk and dairy products for export.HPLC Method
SN/T 4137-2015 Determination of benzophenone and methyl p-hydroxybenzoate in aquatic products for export.LC-MS/MS method
SN/T 3920-2014 Determination of hydroquinone, salicylic acid,phenol,2-phenoxyethanol, methyl 4-hydroxybenzoic acid easters, dichlorophen and triclosan in cosmetics for export.Liquid chromatography method
SN/T 1625-2005 Determination of medroxyprogesterone and medroxyprogesterone acetate residues in animai orginal food for import and export
SN/T 2933-2011 Methods for the detection of chloroform, benzene, carbon tetrachloride, chloropicrin, nitrobenzene and dichlorotoluene in cosmetics
SN/T 2012-2007 Determination of benzoic acid and sorbic acid in vinegar for export and import.Liquid chromatography
SN/T 3861-2014 Determination of hexachlorovaraxrene residues in foodstuffs for export
SN/T 3529-2013 Determination of 2,4-diaminophenol,2,3-diaminophenol and 2,4-diaminoanisole in hair dyes for import and export
SN/T 1959-2007 Determination of medroxyprogesterone acetate residue in animal origin food.Enzyme linked immunosorbent assay method

AENOR, 4-Hydroxybenzoic acid detection method

UNE 84089:1994 COSMETIC RAW MATERIALS. DETERMINATION OF 2-HYDROXYBENZOICO ACID (SALICYLIC ACID) IN p-HIDROXYBENZOATES.
UNE 84715:2007 Cosmetic raw materials. Esters of p-hydroxybenzoic acid. Determination of purity by high pressure liquid chromatography.
UNE 84697:2017 Cosmetic raw materials. Sunscreens. Benzoic acid, 2-[4-(diethylamino)-2-hidroxybenzoyl]-hexylester. Determination of the purity by gas chromatography.
UNE-EN 15168:2007 Surface active agents - Determination of hydroxyl value. p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide

Professional Standard - Petrochemical Industry, 4-Hydroxybenzoic acid detection method

SH/T 1687-2000 Purified terephthalic acid(PTA)for industrial use.Determination of 4-carboxybenzaldehyde and p-toluic acid.High performance capillary electrophoresis(HPCE)
SH/T 1612.7-1995 Determination of p-carboxybenzaldehyde and p-toluic acid in industrial purified terephthalic acid by high performance liquid chromatography
SH/T 1612.6-1995 Polarographic method for determination of p-carboxybenzaldehyde content in industrial purified terephthalic acid

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, 4-Hydroxybenzoic acid detection method

GB/T 5009.31-2003 Determination of p-hydroxybenzoic acid esters in foods
GB/T 30921.1-2014 Test method of purified terephthalic acid (PTA) for industrial use.Part 1:Determination of concentrations of 4-carboxybenzaldehyde (4-CBA) and p-toluic acid (p-TOL)
GB/T 17814-2022 Determination of butyl hydroxy anisole，dibutyl hydroxy toluene，tertiary butyl hydroquinone，ethoxyquin and propyl gallate in feeds
GB/T 30933-2014 Determination of diethylamino hydroxybenzoyl hexyl benzoate as sunscreen agent in cosmetics.High performance liquid chromatography
GB/T 7717.15-1994 Acrylonitrile for industrial use-Determination of content of p-hydroxylanisole-Spectrophotometric method
GB/T 13747.18-1992 Zirconium and zirconium alloys--Determination of vanadium content--N-benzoyl-N-phenylhydroxylamine spectrophotometric method
GB/T 12009.3-1989 Polymethylene polyphenyl isocyanate--Determination of viscosity
GB/T 6609.10-1986 Methods for the chemical analysis of aluminium oxide--The N-benzoyl-N-phenylhydroxylamine extraction photometric method for the determination of vanadic oxide content
GB/T 14074.17-1993 Test methods for wood adhesives and their resins - Determination of hydroxymethyl content
GB/T 12009.4-1989 Polymethylene polyphenyl isocyanate--Determination of isocyanato content
GB/T 6489.2-2001 Phthalate esters for industrial use-Methods of test--Determination of acidity
GB/T 6609.18-1986 Methods for the chemical analysis of aluminium oxide--The N,N-dimethyl-P-phenylenediamine photometric method for the determination of sulfate content
GB/T 7383-1997 Non-ionic surface active agents--Polyalkoxylated derivatives--Determination of hydroxyl value--Phthalic anhydride method
GB/T 18932.18-2003 Method for the determination of hydroxymethylfurfural in honey-HPLC-UV detection method
GB/T 30921.5-2016 Test method of purified terephthalic acid (PTA) for industrial use.Part 5:Determination of acid number
GB/T 6609.10-2004 Chemical analysis methods and determination of physical performance of alumina Determination of vanadic oxide content-N-benzoyI-N-phenylhydroxylamine extraction photometric method

Shandong Provincial Standard of the People's Republic of China, 4-Hydroxybenzoic acid detection method

DB37/T 1100-2008 Determination of parabens in food
DB37/T 3028-2017 Determination of 4 paraben preservatives in cosmetics by gas chromatography
DB37/T 3035-2017 Determination of antioxidants butylhydroxyanisole (BHA), butylated hydroxytoluene (BHT) and tert-butylhydroquinone (TBHQ) in cosmetics by gas chromatography

Taiwan Provincial Standard of the People's Republic of China, 4-Hydroxybenzoic acid detection method

CNS 9027-1982 Method of Test for Feed Additives: Determination of Dibutyl Hydroxy Toluene(BHT) and Butyl Hydroxy Anisol(BHA)

Korean Agency for Technology and Standards (KATS), 4-Hydroxybenzoic acid detection method

KS K 0149-2018 Testing method for BHT(Butylated Hydroxy Toluene) in textile
KS H ISO 6463:2007 Animal and vegetable fats and oils－Determination of butylhydroxyanisole(BHA) and butylhydroxytoluene(BHT)－Gas-liquid chromatographic method
KS M ISO 3451-2:2007 Plastics－Determination of ash－Part 2：Poly(alkylene terephthalate) materials
KS M 1912-2009 Phthalic anhydride for industrial use－Methods of test－Determination of maleic anhydride content－Polarographic method
KS M ISO 4327:2003 Non-ionic surface active agents-Polyalkoxylated derivatives －Determination of hydroxyl value-Phthalic anhydride method
KS I ISO 15913:2021 Water quality — Determination of selected phenoxyalkanoic herbicides, including bentazones and hydroxybenzonitriles by gas chromatography and mass spectrometry after solid phase extraction and derivat
KS I ISO 15913-2006(2016) Water quality－Determination of selected phenoxyalkanoic herbicides,including bentazones and hydroxybenzonitriles by gas chromatographyand mass spectrometry after solid phase extraction and derivatizat
KS M ISO 4327-2003(2018) Non-ionic surface active agents-Polyalkoxylated derivatives －Determination of hydroxyl value-Phthalic anhydride method

Yunnan Provincial Food Standard of the People's Republic of China, 4-Hydroxybenzoic acid detection method

DBS53/ 014-2013 Determination of Parabens in Food by High Performance Liquid Chromatography

British Standards Institution (BSI), 4-Hydroxybenzoic acid detection method

BS 684-2.36:1983 Methods of analysis of fats and fatty oils. Other methods. Determination of butylhydroxyanisole (BHA) and butylhydroxytoluene (BHT)
BS 684 Sec.2.36:1983 Methods of analysis of fats and fatty oils. Other methods. Determination of butylhydroxyanisole (BHA) and butylhydroxytoluene (BHT)
BS 2782-4 Method 470B:1999 Methods of testing plastics. Chemical properties. Determination of ash of polyalkylene terephthalates
BS EN 15168:2006 Surface active agents - Determination of hydroxyl value - p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide

Professional Standard - Tobacco, 4-Hydroxybenzoic acid detection method

YC/T 423-2011 Determination of benzoic acid,sorbic acid,methylparaben,ethylparaben,propylparaben and butylparaben in tobacco flavourings and casings.High performance liquid chromatographic method

American Society for Testing and Materials (ASTM), 4-Hydroxybenzoic acid detection method

ASTM D7881-19 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Reverse Voltage Mode
ASTM D7881-20 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Reverse Voltage Mode
ASTM D7881-20e1 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Reverse Voltage Mode
ASTM D7883-19 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Weak Anion Exchange High Performance Liquid Chromatography
ASTM D7883-20 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Weak Anion Exchange High Performance Liquid Chromatography
ASTM D7884-13 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Reverse Phase High Performance Liquid Chromatography
ASTM E18-08 Standard Test Methods for Rockwell Hardness of Metallic Materials
ASTM E1899-97 Standard Test Method for Hydroxyl Groups Using Reaction with p-Toluenesulfonyl Isocyanate (TSI) and Potentiometric Titration with Tetrabutylammonium Hydroxide
ASTM E18-08a Standard Test Methods for Rockwell Hardness of Metallic Materials
ASTM E1899-23 Standard Test Method for Hydroxyl Groups Using Reaction with p-Toluenesulfonyl Isocyanate (TSI) and Potentiometric Titration with Tetrabutylammonium Hydroxide
ASTM E1899-16 Standard Test Method for Hydroxyl Groups Using Reaction with p-Toluenesulfonyl Isocyanate (TSI) and Potentiometric Titration with Tetrabutylammonium Hydroxide
ASTM D7883-13 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Weak Anion Exchange High Performance Liquid Chromatography
ASTM D7881-13 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Reverse Voltage Mode
ASTM D7882-13 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Normal Voltage Mode
ASTM D7409-07 Standard Test Method for Carboxyl End Group Content of Polyethylene Terephthalate (PET) Yarns
ASTM D740-94(2001) Standard Specification for Methyl Ethyl Ketone
ASTM D7409-15(2020) Standard Test Method for Carboxyl End Group Content of Polyethylene Terephthalate (PET) Yarns
ASTM E2866-21 Standard Test Method for Determination of Diisopropyl Methylphosphonate, Ethyl Methylphosphonic Acid, Isopropyl Methylphosphonic Acid, Methylphosphonic Acid, and Pinacolyl Methylphosphonic Acid in Soi
ASTM D4275-02 Standard Test Method for Determination of Butylated Hydroxy Toluene (BHT) in Polymers of Ethylene and Ethylene-Vinyl Acetate (EVA) Copolymers By Gas Chromatography
ASTM D4275-96 Standard Test Method for Determination of Butylated Hydroxy Toluene (BHT) in Polymers of Ethylene and Ethylene-Vinyl Acetate (EVA) Copolymers By Gas Chromatography
ASTM D4275-09 Standard Test Method for Determination of Butylated Hydroxy Toluene (BHT) in Polymers of Ethylene and Ethylenex2013;Vinyl Acetate (EVA) Copolymers By Gas Chromatography
ASTM D5932-08(2013)e1 Standard Test Method for Determination of 2,4-Toluene Diisocyanate (2,4-TDI) and 2,6-Toluene Diisocyanate (2,6-TDI) in Air (with 9-(N-Methylaminomethyl) Anthracene Method) (MAMA) in the Workplace
ASTM D4274-99 Standard Test Methods for Testing Polyurethane Raw Materials Determination of Hydroxyl Numbers of Polyols
ASTM D4274-05 Standard Test Methods for Testing Polyurethane Raw Materials: Determination of Hydroxyl Numbers of Polyols
ASTM D4590-06 Standard Test Method for Colorimetric Determination of p-tert-Butylcatechol In Styrene Monomer or AMS (alpha-Methylstyrene) by Spectrophotometry
ASTM D4275-17 Standard Test Method for Determination of Butylated Hydroxy Toluene (BHT) in Polymers of Ethylene and Ethylene–Vinyl Acetate (EVA) Copolymers by Gas Chromatography
ASTM D8031-16 Standard Test Method for Acid Number of Terephthalic Acid (TA) by Automatic Potentiometric Titration
ASTM D8032-16 Standard Test Method for Acid Number of Terephthalic Acid by Color-Indicator Titration
ASTM D5932-96 Standard Test Method for Determination of 2,4-Toluene Diiso cyanate (2,4-TDI) and 2,6-Toluene Diiso cyanate (2,6-TDI) in Air (with 9-(N-Methylaminomethyl) Anthracene Method) (MAMA) in the Workplace
ASTM D5932-96(2002) Standard Test Method for Determination of 2,4-Toluene Diiso cyanate (2,4-TDI) and 2,6-Toluene Diiso cyanate (2,6-TDI) in Air (with 9-(N-Methylaminomethyl) Anthracene Method) (MAMA) in the Workplace
ASTM D7884-19 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Reverse Phase High Performance Liquid Chromatography
ASTM D7884-20 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Reverse Phase High Performance Liquid Chromatography
ASTM D8032-20 Standard Test Method for Acid Number of Terephthalic Acid by Color-Indicator Titration

National Health Commission of the People's Republic of China, 4-Hydroxybenzoic acid detection method

GB 5009.31-2016 Determination of Parabens in Food in National Food Safety Standards

International Organization for Standardization (ISO), 4-Hydroxybenzoic acid detection method

ISO 6463:1982 Animal and vegetable fats and oils; Determination of butylhydroxyanisole (BHA) and butylhydroxytoluene (BHT); Gas-liquid chromatographic 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 1897-9:1977 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 1897-8:1977 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 1897-12:1983 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 1897-6:1977 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 1897-1:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part I : General
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 1897-3:1977 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 1897-4:1977 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 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 4327:1979/Cor 1:1980 Non-ionic surface active agents; Polyalkoxylated derivatives; Determination of hydroxyl value; Phthalic anhydride method
ISO 4327:1979 Non-ionic surface active agents; Polyalkoxylated derivatives; Determination of hydroxyl value; Phthalic anhydride method

TR-TSE, 4-Hydroxybenzoic acid detection method

TS 1950-1975 PHENOL, o—CEESOL, m—CRESOL, p—CRESOL, CRESYLIC ACID AND XYLENOLS FOR INDUSTRIAL USE DETERMINATION OF WATER BY THE DEAN AND STARK METHOD
TS 1949-1975 PHENOL, o - CRESOL, m - CRESOL, p - CRESOL, CRESYLIC ACID AND XYLENOLS FOR INDUSTRIAL USE DETERMINATION OF VVATER BY THE KARL FISCHER METHOD
TS 1871-1975 ALUMINIUM OXIDE PRIMARILY USED FOR THE PRODUCTION OF ALUMINIUM DETERMINATION OF VANAD?UM CONTENT PHOTOMETRIC METHOD USING N-BENZOYL-N-PHENYLHYDROXYLAMINE

国家质量监督检验检疫总局, 4-Hydroxybenzoic acid detection method

SN/T 4442-2016 Detection methods for nitrobenzene, nitrotoluene and dinitrotoluene in imported and exported cosmetics

VN-TCVN, 4-Hydroxybenzoic acid detection method

TCVN 6350-1998 Animal and vegetable fats and oils.Determination of butylhydroxyanisole (BHA) and butylhydroxytoluene (BHT).Gas liquid chromatographic method

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, 4-Hydroxybenzoic acid detection method

GB/T 35948-2018 Determination of seven parabens in cosmetics—High performance liquid chromatography
GB/T 35173-2017 Characterisation and testing methods of recycled poly (ethylene terephthalate)(PET)

Association Francaise de Normalisation, 4-Hydroxybenzoic acid detection method

NF T20-667:1984 Polyglycols for industrial use. Determination of hydroxyl number. Phthalic anhydride esterification method.
NF EN 15168:2007 Agents de surface - Détermination de l'indice d'hydroxyle - Méthode à la p-toluènesulfonylisocyanate (TSI) et dosage potentiomètrique avec l'hydroxyde de tétrabutylammonium

Professional Standard - Geology, 4-Hydroxybenzoic acid detection method

DZ/T 0064.67-1993 Groundwater quality testing method Determination of sulfide by p-aminodimethylaniline colorimetric method

Professional Standard - Chemical Industry, 4-Hydroxybenzoic acid detection method

HG/T 3031-1989(1997) Determination of ash of polyalkylene terephthalates
HG/T 3031-1989 Determination of ash of polyalkylene terephthalates

RU-GOST R, 4-Hydroxybenzoic acid detection method

GOST 25261-1982 Polyethers and polyesters for polyurethanes. Method of hydroxyl value determination

Group Standards of the People's Republic of China, 4-Hydroxybenzoic acid detection method

T/NAIA 083-2021 Determination of Hydroxybenzoic Acids in Wine by High Performance Liquid Chromatography

Danish Standards Foundation, 4-Hydroxybenzoic acid detection method

DS/EN 15168:2007 Surface active agents - Determination of hydroxyl value - p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide

Lithuanian Standards Office , 4-Hydroxybenzoic acid detection method

LST EN 15168-2007 Surface active agents - Determination of hydroxyl value - p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide

American National Standards Institute （ANSI), 4-Hydroxybenzoic acid detection method

ANSI/ASTM D4275:1991 Test Method for Determination of Butylated Hydroxytoluene (BHT) in Polymers of Ethylene and EthyleneVinyl Acetate (EVA) Copolymers by Gas Chromatography (08.03)

KR-KS, 4-Hydroxybenzoic acid detection method

KS M ISO 4327-2003(2023) Non-ionic surface active agents-Polyalkoxylated derivatives －Determination of hydroxyl value-Phthalic anhydride method
KS I ISO 15913-2021 Water quality — Determination of selected phenoxyalkanoic herbicides, including bentazones and hydroxybenzonitriles by gas chromatography and mass spectrometry after solid phase extraction and derivat

Professional Standard - Military and Civilian Products, 4-Hydroxybenzoic acid detection method

WJ 2122-1993 Determination of water quality 2,4-dihydroxy-1,3,5-trinitrobenzene (stephanic acid) by reversed-phase ion-pair liquid chromatography

Professional Standard - Coal, 4-Hydroxybenzoic acid detection method

MT/T 371-1994 Determination method of sulfur ion in coal mine water p-aminodimethylaniline colorimetric method

Military Standard of the People's Republic of China-General Armament Department, 4-Hydroxybenzoic acid detection 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

German Institute for Standardization, 4-Hydroxybenzoic acid detection method

DIN EN 15168:2007-02 Surface active agents - Determination of hydroxyl value - p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide; German version EN 15168:2006

YU-JUS, 4-Hydroxybenzoic acid detection method

JUS H.Z1.190-1984 Tastfng of industriai waters. Determination ofsulphideconttnt.Colorimetric mathod with p-amino-N:N-di- methylaniline

NL-NEN, 4-Hydroxybenzoic acid detection method

NEN 6346-1980 Test methods for vegetable and animal oils and fats - Determination of the p-anisidine value

European Committee for Standardization (CEN), 4-Hydroxybenzoic acid detection method

EN 15168:2006 Surface active agents - Determination of hydroxyl value - p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide

海关总署, 4-Hydroxybenzoic acid detection method

SN/T 5323-2021 Determination of the migration amount of parabens in food contact materials, polymer materials, plastics, liquid chromatography-tandem mass spectrometry

Professional Standard - Medicine, 4-Hydroxybenzoic acid detection method

YY/T 1913-2023 Method for determination of 2,2-bis(4-hydroxyphenyl)propane (bisphenol A) residue in medical polycarbonate materials