National standard determination method of benzoic acid

National standard determination method of benzoic acid, Total:339 items.

The international standard classification for "National standard determination method of benzoic acid" includes: food products in general , Organic acids , Plastics , Esters , Textiles in general , Paints and varnishes , Milk and milk products in general , Chemical analysis , Protection against dangerous goods , Protection against crime , Tobacco, tobacco products and related equipment .

The Chinese standard classification for "National standard determination method of benzoic acid" includes: Food sanitation , Basic organic chemicals , Organic chemicals in general , Milk and dairy products , Basic standards and general methods for synthetic resin and plastic , Chemical additive , Basic standards and general methods , Basic standards and general methods , Basic standard and general method for coating , Sugar refining , TCM pharmaceutics , Culture, education and drawing instruments, notebooks and cards , Marking, packaging, transport and storage in general , Crime judging technology , Labor sanitation , Tobacco curing in general .

Professional Standard - Agriculture

GB/T 5009.29-1996 Method for determination of sorbic acid and benzioc acid in foods
210药典四部-2015 3100 Determination method of content 3116 Determination method 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
198药典四部-2020 3100 Determination method of content 3116 Determination method of methyl p-hydroxybenzoate and propyl p-hydroxybenzoate
237药典三部-2020 Content Determination Method 3116 Determination 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
NY/T 2297-2012 Determination of Benzoic Acid and Sorbic Acid in Feeds - High Performance Liquid Chromatography
JAP-045 Copper terephthalate detection method
JAP-072 Method for the detection of todiuron

Professional Standard - Petrochemical Industry

SH/T 1612.2-1995 Determination for acid value of industrial purified terephthalic acid
SH/T 1480-1992 Determination of volatile content of dimethyl terephthalate (vacuum drying method)
SH/T 1544-1993 Determination of iron content in dimethyl terephthalate
SH/T 1478-1992 Determination of transesterification rate of dimethyl terephthalate
SH/T 1612.6-1995 Polarographic method for determination of p-carboxybenzaldehyde content in industrial purified terephthalic acid
SH/T 1479-1992 Colorimetric determination of dimethyl terephthalate (platinum-cobalt label)
SH/T 1481-1992 Determination of crystallization point of dimethyl terephthalate
SH/T 1612.7-1995 Determination for p-formylbenzoic acid and p-toluic acid in industrial purified terephthalic acid
SH/T 1477-1992 Determination of Dimethyl Terephthalate Ash
SH/T 1545-1993 Determination of acid value of dimethyl terephthalate
SH/T 1687-2000 Purified terephthalic acid(PTA)for industrial use - Determination of 4-aCrboxybenzaldehyde and ?p?-toluic acid - High performance capillary electrophoresis(HPCE)

未注明发布机构

ASTM RR-D16-1073 2019 D7884-Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Reverse Phase High Performance Liquid Chromatography
ASTM RR-D16-1072 2019 D7883-Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Weak Anion Exchange High Performance Liquid Chromatography
ASTM D3606-24 Standard Test Method for Determination of Benzene and Toluene in Spark Ignition Fuels by Gas Chromatography
ASTM RR-D16-1076 2020 D7881-Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Reverse Voltage Mode
ASTM RR-D16-1064 2018 D8063-Test Method for Water in Purified Terephthalic Acid (PTA) by Volumetric Karl Fischer Titration
ASTM RR-D02-1329 1994 D5580- 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
ASTM RR-D22-1030 2003 D5836-Test Method for Determination of 2,4-Toluene Diisocyanate (2,4-TDI) and 2,6-Toluene Diisocyanate (2,6-TDI) in Workplace Atmospheres (1-2 PP Method)
ASTM RR-D16-1070 2019 D7881-Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Reverse Voltage Mode
ASTM RR-D02-1814 2015 D5580-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
ASTM RR-D16-1058 2016 D8032-Test Method for Acid Number of Terephthalic Acid by Color-Indicator Titration
ASTM RR-D16-2000 2020 D8032-Standard Test Method for Acid Number of Terephthalic Acid by Color-Indicator Titration
ASTM RR-D02-1363 1995 D5580- 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
ASTM RR-D02-1815 2015 D5580-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
ASTM RR-D16-2001 2020 D7882-Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Normal Voltage Mode
ASTM RR-D16-1048 2013 D7884-Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Reverse Phase High Performance Liquid Chromatography
ASTM RR-D16-1047 2013 D7883-Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Weak Anion Exchange High Performance Liquid Chromatography
ASTM RR-D16-2003 2020 D7884 - Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Reverse Phase High Performance Liquid Chromatography
ASTM RR-D02-2016 2021 D5580 - Standard Test Method for Determination of Benzene, Toluene, Ethylbenzene, p/mXylene, o-Xylene, C9 and Heavier Aromatics, and Total Aromatics in Finished Gasoline by Gas Chromatography
ASTM RR-D02-2004 2020 ASTM D3606- Standard Test Method for Determination of Benzene and Toluene in Spark Ignition Fuels by Gas Chromatography
ASTM RR-D16-1057 2016 D8031-Test Method for Acid Number of Terephthalic Acid (TA) by Automatic Potentiometric Titration
ASTM RR-D16-2002 2020 D7883-Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Weak Anion Exchange High Performance Liquid Chromatography
ASTM RR-D16-1049 2013 D7881-Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Reverse Voltage Mode
ASTM RR-D16-1067 2018 D8207-Test Method for Determination of Metals in Purified Terephthalic Acid (PAT) by Atomic Absorption (AA) Spectrometry
ASTM RR-D16-1050 2013 D7882-Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Capillary Electrophoresis with Normal Voltage Mode

National Health Commission of the People's Republic of China

GB 1886.183-2016 National Food Safety Standard - Food Additives - Benzoic Acid
GB 5009.28-2016 National Food Safety Standard — Determination of Benzoic Acid, Sorbic Acid and Saccharin Sodium in Foods
GB 1886.184-2016 National Food Safety Standard - Food Additives - Sodium Benzoate
GB 1886.288-2016 National Food Safety Standard - Food Additives - ethyl benzoate
GB 5009.271-2016 National Food Safety Standard - Determination of Phthalates in Food
GB 1886.289-2016 National Food Safety Standard - Food Additives - benzyl benzoate
GB 5009.31-2016 National Food Safety Standard - foodtuffs - Determination of p - hydroxybenzoic acid esters in foodtuffs

Professional Standard - Chemical Industry

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

Taiwan Provincial Standard of the People's Republic of China

CNS 12229-1988 Method of Test for Benzoic Acid
CNS 6198-1980 Determination of Acidity of Tritolyl Phosphate for Industrial Use(Volumetric Method)
CNS 4011-1983 Method of Test for Phthalic Ester
CNS 6199-1980 Determination of Apparent Free Phenols Content of Tritolyl Phosphate for Industrial Use(Volumetric Method)

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

GB/T 5009.29-2003 Determination of sorbic acid and benzioc acid in foods
GB/T 6489.3-2001 Phthalate esters for industrial use-Methods of test-Determination of ester content-Titrimetric method after saponification
GB/T 21703-2008 Determination of benzoic and sorbic acid in milk and dairy products
GB/T 12009.3-1989 Polymethylene polyphenyl isocyanate-Determination of viscosity
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 23990-2009 Determination of the contents of benzene toluene ethylbenzene and xylene in coatings by gas chromatography
GB/T 21911-2008 Determination of phthalate esters in foods
GB/T 20388-2006 Textiles - Determination of the content of phthalates
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 20388-2016 Textiles—Determination of the phthalate content—Tetrahydrofuran method
GB 31604.30-2016 National Food Safety Standard - Food Contact Materials and Articles - Determination of the Content and Migration of Phthalate Esters
GB 21703-2010 National food safety standard Determination of benzoic acid and sorbic acid in milk and milk products
GB/T 30921.5-2016 Test method of purified terephthalic acid (PTA) for industrial use—Part 5:Determination of acid number

国家质量监督检验检疫总局

SN/T 4373-2015 Determination of maleic anhydride in phthalic anhydride―Gas chromatography method
SN/T 3147-2017 Determination of epinephrine and isoprinosine in feeds-Liquid chromatography-tandem mass spectrometry (LC-MS/MS)

Professional Standard - Commodity Inspection

SN/T 3995-2014 Textiles for import and export - Quantitative analysis method of phthalates
SN/T 2251-2009 Determination of benzene, toluene, xylene and toluene diisocyanates in solvent coatings - Headspace-GC-MS method
SN/T 2935-2011 Determination of benzene,toluene,xylene and phthalic acid esters in solvent coatings for import and export-Gas chromatography
SN/T 4006-2013 Determination of phthalates in leather products
SN/T 1121-2002 Determination of benzoic acid||sorbic acid and parabens in Chinese traditional medicine preparation-Liquid chromatographic method
SN/T 2553-2010 Determination of benzene,toluene,xylene isomers,free toluene diisocynate and phthalate plasticizers in adhesives used in building for import and export
SN/T 2187-2008 Determination of benzene, toluene, xylene and toluene diisocyanates in solvent coatings - Derivative reaction-gas chromatography 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 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 2012-2007 Determination of benzoic acid and sorbic acid in vinegar for export and import-Liquid chromatography

国家市场监督管理总局、中国国家标准化管理委员会

GB/T 38229-2019 Test method for hazard classification of tricresyl phosphate
GB/T 39765-2021 Determination of benzene,methylbenzene,ethylbenzene,dimethybenzene in stationery—Gas chromatographic method

海关总署

SN/T 5320-2021 Food contact materials Polymer materials Determination of 1,2,4-benzenetricarboxylic acid, isophthalic acid, terephthalic acid and pathalic acid in food simulants - High performance liquid chromatography

Professional Standard - Public Safety Standards

GA/T 204-1999 Methods of qualitative and quantitative analysis for benzene toluene ethyl benzene dimethyl benzene in blood and urine

Shandong Provincial Standard of the People's Republic of China

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

Professional Standard - Hygiene

WS/T 149-1999 Workplace air. Determination of dibutyl phthalate and di-n-octyl phthalate. High-performance liquid chromatography method

Professional Standard - Tobacco

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

检验方法与规程专业（理化）

GB 31604.21-2016 National Food Safety Standard - Food Contact Materials and Articles - Determination of Migration of Terephthalic Acid

Chongqing Provincial Standard of the People's Republic of China

DB50/T 862-2018 Determination of methanol, acetaldehyde, benzene, toluene, ethylbenzene and xylene in car perfume by gas chromatography

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

GJB 770.310-1993 Test methods for gunpowder analysis: Determination of dinitrotoluene, dibutyl phthalate and 2-nitrodiphenylamine in double base powder by gas chromatography

Group Standards of the People's Republic of China

T/CHBAS 7-2021 Determination method of trifluoromethanesulfonic acid

Professional Standard - Environmental Protection

HJ/T 72-2001 W ater quality - Determination of phthalate(dimethyl dibutyl dioctyl) - Liquid chromatography

Hunan Provincial Standard of the People's Republic of China

DB43/T 644-2011 Determination of Benzene, Toluene and Xylene in Adhesives

CZ-CSN

CSN 58 8773-1994 Methods of test for fats and oils Determination and detection of benzoic acid
CSN 58 8774-1994 Methods of test for fats and oils Spectrophotometric determination of benzoic acid
CSN 65 0351-1967 Testing methods of phthalates
CSN 58 8772-1994 Methods of test for fats and oils Determination and detection of ethyl and propyl ester of p-hydroxybenzoic acid
CSN 66 3312-1980 Phthalic anhydride. Determtaation of maleic anhydride conteait
CSN 66 2122-1987 Petroleum toluene. Methods of testing
CSN 66 3315-1980 Phthalic anhydride. Measurement of colour stability.
CSN 66 8102 Cast.25-1997 Smokeless powder. Test Methods. Determination of 2,4 Nitrotoluene

Korean Agency for Technology and Standards (KATS)

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 1991-2011 Determination of phthalates contents in polymer materials
KS M 3003-2008(2018) Test method for phthalic acid ester
KS M 3003-1987 Test method for phthalic acid ester
KS M 1910-2009 Phthalic anhydride for industrial use－Methods of test－Determination of free acidity－Potentiometric method
KS M 1908-2009 Phthalic anhydride for industrial use－Methods of test－Measurement of colour stability
KS M 1913-2002(2007) Phthalic anhydride for industrial use－Methods of test－Determination of ash
KS M 3003-2023 Test method for phthalic acid ester
KS M 1910-2002(2007) Phthalic anhydride for industrial use－Methods of test－Determination of free acidity－Potentiometric method
KS M 3003-2008 Test method for phthalic acid ester
KS M 1909-2009 Phthalic anhydride for industrial use－Methods of test－Measurement of colour after treatment with sulphuric acid
KS M 1916-2009 Phthalic anhydride for industrial use－Methods of test－Determination of iron content－2,2′-bipyridyl photometric method
KS M 1678-2008(2018) Test method for benzeneㆍtolueneㆍxylene
KS M 1909-2002(2007) Phthalic anhydride for industrial use－Methods of test－Measurement of colour after treatment with sulphuric acid
KS M 1908-2002(2007) Phthalic anhydride for industrial use－Methods of test－Measurement of colour stability
KS M 5515-1984 Test methods for Phthalic anhydride of alkyd RESIN
KS M 1913-2009 Phthalic anhydride for industrial use－Methods of test－Determination of ash
KS M 1907-2009 Phthalic anhydride for industrial use－Methods of test－Measurement of colour of the molten material
KS M 1678-2023 Test method for benzeneㆍtolueneㆍxylene
KS M 1912-2002(2007) Phthalic anhydride for industrial use－Methods of test－Determination of maleic anhydride content－Polarographic method
KS M 1907-2002(2007) Phthalic anhydride for industrial use－Methods of test－Measurement of colour of the molten material
KS M 1025-2016 Phthalate pH standard solutions
KS M 1914-2009 Phthalic anhydride for industrial use－Methods of test－Determination of impurities oxidizable in the cold by potassium permanganate－Iodometric method
KS M ISO 3451-2:2007 Plastics－Determination of ash－Part 2：Poly(alkylene terephthalate) materials

RU-GOST R

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 33839-2016 Confectionery. Method for determination of mass fraction of benzoic acid
GOST 30059-1993 Non-alcoholic drinks. Methods for determination of aspartame, saccharin, caffeine and sodium benzoate
GOST 24445.10-1992 Phthalic anhydride for industrial use. Method for determination of iron content
GOST 24445.8-1992 Phthalic anhydride for industrial use. Method for determination of ash
GOST 24445.6-1992 Phthalic anhydride for industrial use. Method for determination of colour stability
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 24445.5-1980 Phtalic anhydride. Method of determination of melt colouring
GOST 24445.4-1992 Phthalic anhydride for industrial use. Method for determination of 1,4-naphthaquinone
GOST 32532-2013 Phtalic anhydride. Determination in air
GOST 32457-2013 Phthalic anhydride. Determination in air
GOST 30669-2000 Products of fruits and vegetables processing. Gas chromatographic method for determination of benzoic acid content
GOST 32535-2013 Toluylene diisocyanate. Determination in air
GOST R ISO 14389-2016 Textiles. Determination of the phthalate content. Tetrahydrofuran method
GOST 11235-1975 Phenolformaldehyde resins. Methods for determination of free phenol

American Society for Testing and Materials (ASTM)

ASTM D7884-24 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Reverse Phase High Performance Liquid Chromatography
ASTM D7884-13 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p -Toluic Acid in Purified Terephthalic Acid by Reverse Phase High Performance Liquid Chromatography
ASTM D7884-23 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p -Toluic Acid in Purified Terephthalic Acid by Reverse Phase High Performance Liquid Chromatography
ASTM D8031-16(2024) Standard Test Method for Acid Number of Terephthalic Acid (TA) by Automatic Potentiometric Titration
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 D5836-95 Standard Test Method for Determination of 2,4-Toluene Diisocyanate (2,4-TDI) and 2,6-Toluene Diisocyanate (2,6-TDI) in Workplace Atmospheres (1-2 PP Method)
ASTM D4471-00 Standard Test Method for Pyridine Bases in Cresylic Acid by Direct Titration
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 D4471-00(2004) Standard Test Method for Pyridine Bases in Cresylic Acid by Direct Titration
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 D4471-18 Standard Test Method for Pyridine Bases in Cresylic Acid by Direct Titration
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 D5836-20 Standard Test Method for Determination of 2,4-Toluene Diisocyanate (2,4-TDI) and 2,6-Toluene Diisocyanate (2,6-TDI) in Workplace Atmospheres (1-2 PP Method)
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 D5836-08 Standard Test Method for Determination of 2,4-Toluene Diisocyanate (2,4-TDI) and 2,6-Toluene Diisocyanate (2,6-TDI) in Workplace Atmospheres (1-2 PP Method)
ASTM D5836-03 Standard Test Method for Determination of 2,4-Toluene Diisocyanate (2,4-TDI) and 2,6-Toluene Diisocyanate (2,6-TDI) in Workplace Atmospheres (1-2 PP Method)
ASTM D8032-20 Standard Test Method for Acid Number of Terephthalic Acid by Color-Indicator Titration
ASTM D2023-89(1995)e1 Standard Test Method of Analysis for Sodium Toluene Sulfonate in Detergents
ASTM D8062-22 Standard Specification for Purified Terephthalic Acid (PTA) with Low p -Toluic Acid
ASTM D847-96(2000) Standard Test Method for Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas, and Similar Industrial Aromatic Hydrocarbons
ASTM D847-96 Standard Test Method for Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas, and Similar Industrial Aromatic Hydrocarbons
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 D847-16 Standard Test Method for Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas, and Similar Industrial Aromatic Hydrocarbons
ASTM D847-23 Standard Test Method for Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas, and Similar Industrial Aromatic Hydrocarbons
ASTM D847-15 Standard Test Method for Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas, and Similar Industrial Aromatic Hydrocarbons
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 D2690-98 Standard Test Method for Isophthalic Acid in Alkyd and Polyester Resins
ASTM D5836-08(2013) Standard Test Method for Determination of 2,4-Toluene Diisocyanate (2,4-TDI) and 2,6-Toluene Diisocyanate (2,6-TDI) in Workplace Atmospheres (1-2 PP Method)
ASTM D847-08 Standard Test Method for Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas, and Similar Industrial Aromatic Hydrocarbons
ASTM D8062-21 Standard Specification for Purified Terephthalic Acid (PTA) with Low p -Toluic Acid
ASTM D1399-95(2000) Standard Test Method for Unsaponifiable Contents of Tricresyl Phosphate
ASTM D847-04 Standard Test Method for Acidity of Benzene, Toluene, Xylenes, Solvent Naphthas, and Similar Industrial Aromatic Hydrocarbons
ASTM D8062-19 Standard Specification for Purified Terephthalic Acid (PTA) with Low p -Toluic Acid
ASTM D4471-10 Standard Test Method for Pyridine Bases in Cresylic Acid by Direct Titration
ASTM D3627-96 Standard Test Method for Color of Cresylic Acids ("C" Series Standards)
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 D1721-97(2001) Standard Test Method for Permanganate Time of Tricresyl Phosphate
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 D1721-97 Standard Test Method for Permanganate Time of Tricresyl Phosphate
ASTM D1721-97(2007) Standard Test Method for Permanganate Time of Tricresyl Phosphate
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 D8063-18 Standard Test Method for Water in Purified Terephthalic Acid (PTA) by Volumetric Karl Fischer Titration
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 D5348-95(2019) Standard Test Method for Determination of the Moisture Content of Sulfonated and Sulfated Oils by Distillation with Xylene
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 F3414-20 Standard Test Method for Determining Ortho-Phthalate Concentration in Flooring Containing Polyvinyl Chloride
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 D5580-02 Standard Test Method for Determination of Benzene, Toluene, Ethylbenzene, p/m -Xylene, o -Xylene, C ₉ and Heavier Aromatics, and Total Aromatics in Finished Gasoline by Gas Chromatography
ASTM D5580-00 Standard Test Method for Determination of Benzene, Toluene, Ethylbenzene, p/m -Xylene, o -Xylene, C ₉ and Heavier Aromatics, and Total Aromatics in Finished Gasoline by Gas Chromatography
ASTM D5580-15 Standard Test Method for Determination of Benzene, Toluene, Ethylbenzene, p/m -Xylene, o -Xylene, C 9 and Heavier Aromatics, and Total Aromatics in Finished Gasoline by Gas Chromatography
ASTM D2023-89(2016) Standard Test Method of Analysis for Sodium Toluene Sulfonate in Detergents
ASTM D2023-89(2003) Standard Test Method of Analysis for Sodium Toluene Sulfonate in Detergents
ASTM D5580-02(2007) Standard Test Method for Determination of Benzene, Toluene, Ethylbenzene, p/m -Xylene, o -Xylene, C ₉ and Heavier Aromatics, and Total Aromatics in Finished Gasoline by Gas Chromatography
ASTM D5580-13 Standard Test Method for Determination of Benzene, Toluene, Ethylbenzene, p/m -Xylene, o -Xylene, C 9 and Heavier Aromatics, and Total Aromatics in Finished Gasoline by Gas Chromatography
ASTM D8207-18 Standard Test Method for Determination of Metals in Purified Terephthalic Acid (PAT) by Atomic Absorption (AA) Spectrometry
ASTM D3606-22 Standard Test Method for Determination of Benzene and Toluene in Spark Ignition Fuels by Gas Chromatography
ASTM D3606-20e1 Standard Test Method for Determination of Benzene and Toluene in Spark Ignition Fuels by Gas Chromatography
ASTM D5606-17 Standard Specification for Toluene for Toluene Diisocyanate (TDI) Feedstock
ASTM D5606-09(2013) Standard Specification for Toluene for Toluene Diisocyanate (TDI) Feedstock
ASTM D5606-01(2006)e1 Standard Specification for Toluene for Toluene Diisocyanate (TDI) Feedstock
ASTM D2462-22 Standard Test Method for Moisture in Wool by Distillation With Toluene
ASTM D7304-22a Standard Test Method for Determination of Denatonium Benzoate in Engine Coolant by HPLC
ASTM D5606-01 Standard Specification for Toluene for Toluene Diisocyanate (TDI) Feedstock
ASTM D2023-89(2009) Standard Test Method of Analysis for Sodium Toluene Sulfonate in Detergents
ASTM D1468-93(1996) Standard Test Method for Volatile Matter in Tricresyl Phosphate
ASTM D5606-09 Standard Specification for Toluene for Toluene Diisocyanate (TDI) Feedstock
ASTM D5932-20 Standard Test Method for Determination of 2,4-Toluene Di iso cyanate (2,4-TDI) and 2,6-Toluene Di iso cyanate (2,6-TDI) in Air (with 9-(N-Methylaminometh
ASTM D4660-23 Standard Test Methods for Polyurethane Raw Materials: Determination of the Isomer Content of Toluenediisocyanate
ASTM D7304-22 Standard Test Method for Determination of Denatonium Benzoate in Engine Coolant by HPLC
ASTM D6563-11 Standard Test Method for Benzene, Toluene, Xylene (BTX) Concentrates Analysis by Gas Chromatography
ASTM D3606-17 Standard Test Method for Determination of Benzene and Toluene in Spark Ignition Fuels by Gas Chromatography
ASTM D5606-16 Standard Specification for Toluene for Toluene Diisocyanate (TDI) Feedstock
ASTM D5606-19 Standard Specification for Toluene for Toluene Diisocyanate (TDI) Feedstock
ASTM D3606-20 Standard Test Method for Determination of Benzene and Toluene in Spark Ignition Fuels by Gas Chromatography
ASTM D2462-13 Standard Test Method for Moisture in Wool by Distillation With Toluene
ASTM D2462-90(2008) Standard Test Method for Moisture in Wool by Distillation With Toluene
ASTM D4660-18 Standard Test Methods for Polyurethane Raw Materials: Determination of the Isomer Content of Toluenediisocyanate
ASTM D8062-23 Standard Specification for Purified Terephthalic Acid (PTA) with Low p -Toluic Acid
ASTM D6854-03 Standard Test Method for Silica8212; n -Dibutyl Phthalate Absorption Number
ASTM D1468-93(2001) Standard Test Method for Volatile Matter in Tricresyl Phosphate
ASTM D5606-98 Standard Specification for Toluene for Toluene Diisocyanate (TDI) Feedstock
ASTM D6563-05e1 Standard Test Method for Benzene, Toluene, Xylene (BTX) Concentrates Analysis by Gas Chromatography
ASTM D3852-99 Standard Practice for Sampling and Handling Phenol, Cresols, and Cresylic Acid
ASTM D3606-21 Standard Test Method for Determination of Benzene and Toluene in Spark Ignition Fuels by Gas Chromatography
ASTM D5348-95(2012) Standard Test Method for Determination of the Moisture Content of Sulfonated and Sulfated Oils by Distillation with Xylene
ASTM D6854-03(2008) Standard Test Method for Silica x2014; n -Dibutyl Phthalate Absorption Number
ASTM D6563-12 Standard Test Method for Benzene, Toluene, Xylene (BTX) Concentrates Analysis by Gas Chromatography
ASTM D6563-05 Standard Test Method for Benzene, Toluene, Xylene (BTX) Concentrates Analysis by Gas Chromatography

GSO

OS GSO 173:1994 METHODS OF TEST FOR BENZOIC ACID, SODIUM BENZOATE AND POTASSIUM BENZOATE USED IN PRESERVATION OF FOODSTUFFS
GSO 173:1994 METHODS OF TEST FOR BENZOIC ACID, SODIUM BENZOATE AND POTASSIUM BENZOATE USED IN PRESERVATION OF FOODSTUFFS
BH GSO ASTM D5580:2023 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
GSO ASTM D5580:2023 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

International Organization for Standardization (ISO)

ISO 1389-6:1977 Phthalic anhydride for industrial use; Methods of test; Part VI : Determination of phthalic anhydride content; Titrimetric 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 1897-11:1983 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 1897-7:1977 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 1897-9:1977 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 1897-13:1983 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 1897-12:1983 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 1897-10:1982 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 1897-2:1977 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/R 1903:1971 Determination of density of industrial liquefied phenol, m-cresol, toluic acid and xylenol at 20°C
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 1389-5:1977 Phthalic anhydride for industrial use; Methods of test; Part V : Determination of free acidity; Potentiometric method
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 1897-4:1977 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 1389-8:1977 Phthalic anhydride for industrial use; Methods of test; Part VIII : Determination of ash
ISO 1385-2:1977 Phathalate esters for industrial use; Methods of test; Part II : Measurement of colour after heat treatment (Diallyl phthalate excluded)
ISO/DTS 16465:2023 Determination of phthalates in vegetable oils
ISO/CD TS 16465 Determination of phthalates in vegetable oils
ISO 1385-3:1977 Phthalate esters for industrial use; Methods of test; Part III : Determination of ash
ISO 1389-4:1977 Phthalic anhydride for industrial use; Methods of test; Part IV : Measurement of colour after treatment with sulphuric acid
ISO 1389-3:1977 Phthalic anhydride for industrial use; Methods of test; Part III : Measurement of colour stability
ISO 1385-4:1977 Phthalate esters for industrial use; Methods of test; Part IV : Determination of acidity to phenolphthalein; Titrimetric method

SCC

UNE 70105-6:1985 PHTHALIC ANHYDRIDE FOR INDUSTRIAL USE. METHODS OF TEST. PART 6: DETERMINATION OF PHTHALIC ANHYDRIDE CONTENT. TITRIMETRIC METHOD
NS 9023:1981 Phenol, o-cresol, m-cresol, p-cresol; cresylic acid and xylenols for industrial use — Methods of test — Part 8: Determination of o-cresol content (Cresylic acid and xylenols only)
AENOR UNE 70105-6:1985 Phthalic anhydride for industrial use. Determination of phthalic anhydride content. Volumetric method.
NS 9024:1981 Phenol, o-cresol, m-cresol, p-cresol; cresylic acid and xylenols for industrial use — Method of test — Part 9: Determination of m-cresol content (cresylic acid only)
AENOR UNE 7038:1952 DETERMINATION OF ACIDITY IN BENZENE, TOLUENE, XYLENE AND SIMILAR INDUSTRIAL AROMATIC HYDROCARBONS
UNE-EN 15777:2010 Textiles - Test method for phthalates
DANSK DS/EN 15777:2009 Textiles - Test method for phthalates
NS-EN 15777:2009 Textiles — Test method for phthalates
DIN EN 15777 E:2008 Draft Document - Textiles - Method of test for phthalates; German version prEN 15777:2008
NS 9017:1981 Phenol, o-cresol, m-cresol, p-cresol; cresylic acid and xylenols for industrial use — Methods of test — Part 2: Determination of water — Dean and Stark method
UNE 70105-5:1985 PHTHALIC ANHYDRIDE FOR INDUSTRIAL USE. METHODS OF TEST. PART 5: DETERMINATION OF FREE ACIDITY. POTENTIOMETRIC METHOD
AENOR UNE 70105-5:1985 Phthalic anhydride for industrial use. Determination of free acidity. Potentiometric method.
AENOR UNE 70105-7:1986 Phthalic anhydride for industrial use. Determination of maleic anhydride. Polarographic method.
NS 9027:1981 Tritolyl phosphate for industrial use — Determination of acidity to phenol red — Volumetric method
NS 9018:1981 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
AENOR UNE 70105-1:1985 Phthalic anhydride for industrial use. Test methods. Generalities.
08/30175755 DC BS EN 15777. Textiles. Test methods for phthalates
NS 9016:1981 Phenol, o-cresol, m-cresol, p-cresol; cresylic acid and xylenols for industrial use — Methods of test — Part 1: General
DANSK DS/EN 17298:2019 Animal feeding stuffs – Methods of sampling and analysis – Determination of benzoic and sorbic acid by High Performance Liquid Chromatography (HPLC)
NS-EN 17298:2019 Animal feeding stuffs — Methods of sampling and analysis — Determination of benzoic and sorbic acid by High Performance Liquid Chromatography (HPLC)
UNE 70105-7:1986 PHTHALIC ANHYDRIDE FOR INDUSTRIAL USE. METHODS OF TEST. PART 7. DETERMINATION OF MALEIC ANHYDRIDE CONTENT. POLAROGRAPHIC METHOD

YU-JUS

JUS H.B8.416-1985 Phthalic anhydride for industrial use. Determination of maleic, citraconic, benzoicandO-toluicacid content. Gas chromatographic method
JUS H.B8.421-1985 Maleic anhydride for industrial use. Determination of benzoic and O-toluic acid and citraconic and phthalic anhydride contents. Gas chromatographic method
JUS H.B8.419-1985 Phthalic anhydride for industrial use. Determination of benzoic, o-toluic and p-toluic acids and ph thalide content. Gas chromatographic method
JUS H.B8.433-1984 Di-2—ethylhexyl phthalate for industrial use. Determination of ester content (as DOP). Volumetric method.
JUS H.B8.441-1984 Fhthalate esters (diallyl phthalate excluded) for industrial use. Measurement of coiour after heat treatment in Hazen units. Colorimetric method

BE-NBN

NBN T 04-277-1985 Phenol,cresols, cresylic acid and xylenols for industrial use - Determination of water - Dean and Stark method
NBN T 04-247-1983 Tritolyl phosphate for industrial use - Determination of acidity to phenol red-Volumetric method
NBN T 04-282-1985 Cresylic acid and xylenols for industrial use- Measurement of colour
NBN T 04-283-1985 Cresylic acid and xylenols for industrial use- Determination of -cresol content
NBN T 04-276-1985 Phenol,cresols,cresylic acid and xylenols for industrial use - Methods of test-General

HU-MSZT

MSZ KGST 1676-1979 Determination of phthalic acid content in hydrogenated phthalic acid
MSZ KGST 1680-1979 Determination of heat resistance of phthalic acid
MSZ KGST 1677-1979 Determination of Maleic Acid Content of Hydroxated Phthalic Acid
MSZ KGST 1675-1979 Determination of total acid content of hydroxide phthalic acid

PL-PKN

PN A04016-1962 Food products. Determination of benzoic oc'd confents
PN Z04208-02-1989 Air purity protection Tests for phtalic acid esters Determination of methyl phtalate in work places by gas ?hromatography

KR-KS

KS M 3003-2008(2023) Test method for phthalic acid ester
KS M 1678-2008(2023) Test method for benzeneㆍtolueneㆍxylene

TR-TSE

TS 1960-1975 CRESYLIC ACID AND XYLENOLS FOR INDUSTRIAL USE MEASUREMENT OF COLOUR
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 1961-1975 CRESYLIC ACID AND XYLENOLS FOR INDUSTRIAL USE DETERMINATION OF o-CRE?OL CONTENT
TS 1957-1975 CRESYLIC ACID AND XYLENOLS FOR INDUSTRIAL USE DETERMINATION OF DISTILLATION RANGE
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 1858-1975 TRITOLYL PHOSPHATE FOR INDUSTRIAL USE - LIST OF METHODS OF TEST
TS 1859-1975 TRITOLYL PHOSPHATE FOR INDUSTRIAL USE - DETERMINATION OF ACIDITY TO PHENOL RED - VOLUMETRIC METHOD
TS 1958-1975 CRESYLIC ACID AND XYLENOLS FOR INDUSTRIAL USE DETERMINATION OF RESIDUE ON DISTILLATION
TS 1962-1975 CRESYLIC ACID FOR INDUSTRIAL USE DETERMINATION OF m-CRESOL CONTENT
TS 1951-1975 PHENOL, o . CRESOL, m - CRESOL, p - CRESOL, CRESYLIC ACID AND XYLENOLS FOR INDUSTRIAL USE DETERMINATION OF NATURAL OILS AND PYRIDINE BASES
TS 1954-1975 LIQUEFIED PHENOL, m-CRESOL, CRESYLIC ACID AND XYLENOLS FOR INDUSTRIAL USE DETERMINATION OF DENSITY AT 20°C
TS 1138-1972 PHTHALIC ANHYDRIDE FOR INDUSTRIAL USE METHODS OF TEST

Japanese Industrial Standards Committee (JISC)

JIS K 6751-2:1999 Testing methods for phthalic esters -- Part 2: Determination of acidity to phenolphthalein -- Titrimetric method
JIS K 6751:1995 Testing method for phthalic ester
JIS K 1603:1985 Testing methods for polymethylene polyphenyl polyisocyanate (testing methods for polymeric MDI)
JIS K 0450-30-10:2006 Testing method for phthalic acid esters in industrial water and wastewater
JIS K 0450-30-10:2002 Testing method for phthalic acid esters in industrial water and wastewater
JIS K 6751-3:1999 Testing methods for phthalic esters -- Part 3: Determination of ester content -- Titrimetric method after saponification

UNKNOWN

BJS 202305 Determination of 2-methoxybenzoic acid, 2′-methoxyacetophenone, 4-hydroxyphenyllactic acid and 3-phenyllactic acid in Manuka honey

RO-ASRO

STAS 6182/39-1975 WINE Determination of benzoic acid
SR 2567-3-1997 Soft drinks - Methods of analysis - Determination of sodium benzoate content

AENOR

UNE 84089:1994 COSMETIC RAW MATERIALS. DETERMINATION OF 2-HYDROXYBENZOICO ACID (SALICYLIC ACID) IN p-HIDROXYBENZOATES.

Association Francaise de Normalisation

NF T20-722:1984 Cresylic acid and xylenols for industrial use. Methods of test.
NF EN 17298:2019 Animal foodstuffs - Methods of sampling and analysis - Determination of benzoic acid and sorbic acid by high pressure liquid chromatography (HPLC)
NF EN ISO 14389:2022 Textiles - Determination of phthalate content - Tetrahydrofuran method
NF V18-218*NF EN 17298:2019 Animal feeding stuffs - Methods of sampling and analysis - Determination of benzoic and sorbic acid by high performance liquid chromatography (HPLC)

VN-TCVN

TCVN 7810-2007 Fruit and vegetable products.Determination of benzoic acid content (benzoic acid contents greater than 200 mg per litre or per kilogram).Molecular absorption spectrometry method

German Institute for Standardization

DIN EN 17298:2019-11 Animal feeding stuffs - Methods of sampling and analysis - Determination of benzoic and sorbic acid by High Performance Liquid Chromatography (HPLC); German version EN 17298:2019

European Committee for Standardization (CEN)

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

British Standards Institution (BSI)

BS EN 17298:2019 Animal feeding stuffs. Methods of sampling and analysis. Determination of benzoic and sorbic acid by High Performance Liquid Chromatography (HPLC)
BS 6782-16.2:2000 Binders for paints - Methods of test for alkyd resins - Determination of phthalic anhydride content

ES-UNE

UNE-EN 17298:2020 Animal feeding stuffs - Methods of sampling and analysis - Determination of benzoic and sorbic acid by High Performance Liquid Chromatography (HPLC)

GOST

GOST 33451-2015 Package. Determination of the content of dioctyl phthalate, dibutyl phthalate by gas chromatography in model media
GOST 33450-2015 Package. Determination of dimethyl terephthalate content by gas chromatography in air

Lithuanian Standards Office

LST EN 15777-2009 Textiles - Test method for phthalates

Danish Standards Foundation

DS/EN 15777:2009 Textiles - Test method for phthalates

(U.S.) Ford Automotive Standards

FORD FLTM AM 106-1-2001 DETERMINATION OF BENZOATE AND TRIAZOLE IN COOLANT BY LIQUID CHROMATOGRAPHY

CEN - European Committee for Standardization

PREN 17298-2018 Animal feeding stuffs: Methods of sampling and analysis - Determination of benzoic and sorbic acid by High Pressure Liquid Chromatography (HPLC)

Others: Determination method of German standard pH value,Determination method of sodium benzoate content,Determination method of benzoic acid sorbic acid,Determination method of benzoic acid content,Determination method of p-hydroxybenzoic acid,Determination method of benzoic acid,Ultraviolet Determination Method of Benzoic Acid,Benzoic acid liquid phase determination method,Determination method of sodium benzoate