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Database: 365,228(8 Aug 2026)

Determination of Fluorine in Tea

Determination of Fluorine in Tea, Total:153 items.

The international standard classification for "Determination of Fluorine in Tea" includes: Tea , Farming and forestry , Pesticides and other agrochemicals in general , General methods of tests and analysis for food products , food products in general , Tobacco, tobacco products and related equipment .

The Chinese standard classification for "Determination of Fluorine in Tea" includes: Tea products , Cash crop in general , Pesticide management and application method , Basic standards and general methods , Food sanitation , Tobacco curing in general , Beverages in general .


Professional Standard - Agriculture

  • NY/T 1960-2010 Determination of magnetic metals content in tea
  • NY/T 3173-2017 Determination of 9,10-anthraquinone in tea-Gas chromatography-tandem mass spectrometry
  • NY 1500.17.6-2007 Maximum Residue Limits for Pesticides - Cyhalothrin - Tea Leaves (Finished Tea)
  • NY/T 1721-2009 Determination of propargite residues in tea by GC
  • NY/T 838-2004 Test method of Fluorine in tea -- Electrode method for selection of Fluorine ion
  • NY 661-2003 Maximum residue limits of cyfluthrin and flucythrinate in tea
  • NY/T 3631-2020 Determination of theobromine and theophylline in tea—High performance-liquid chromatography
  • NY/T 1724-2009 Determination of imidacloprid residue in tea by HPLC
  • NY 659-2003 Resudue limits for chromium, cadmium, mercury, arsenic and fluoride in tea

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

  • GB/T 23376-2009 Determination of pesticides residues in tea - GC/MS method
  • GB/T 8313-2018 Determination of total polyphenols and catechins content in tea
  • GB/T 23193-2008 Determination of theanine in tea - High performance liquid chromatography
  • GB/T 5009.176-2003 Determination of dicofol residues in tea,fruits,edible evgetable oils
  • GB/T 21729-2008 Determination of selenium content in tea
  • BJS 202404 Determination of 60 compounds including paracetamol in alcoholic beverages, beverages, tea and tea substitutes
  • BJS 201914 Determination of chlorothiophene in tea by liquid chromatography-tandem mass spectrometry
  • GB/T 14456.2-2018(英文版) Green tea—Part 2:Dayezhong green tea
  • GB/T 30483-2013 Determination of theaflavins in tea-High performance liquid chromatography
  • GB/T 23379-2009 Determination of imidacloprid residues in fruits,vegetables and teas—High performance liquid chromatographic method
  • GB/T 8313-2008 Determination of total polyphenols and catechins content in tea
  • GB/T 23193-2017 Determination of theanine in tea-Using high performance liquid chromatography
  • GB/T 14456.3-2016 Green tea—Part 3: Green tea made from medium and small-leaf varieties
  • GB/T 22290-2008 Determination of rare earth elements in tea by inductively coupled plasma mass spectrometry
  • BJS 201714 Determination of 18 compounds including diflunisal in beverages, tea and related products
  • GB/T 21136-2007 Threshed tobacco—Determination of stem content
  • BJS 201910 Determination of Art Green (Lead Chrome Green) in Tea
  • GB/T 14456.3-2016(英文版) Green tea—Part 3:Green tea made from medium and small leaf varieties

Group Standards of the People's Republic of China

  • T/GZTPA 0003-2019 Determination of gibberellic acid residues in tea and green tea by liquid chromatography-mass spectrometry/mass spectrometry
  • T/CITS 0112-2024 Determination of aroma substances in tea-Gas chromatography-mass spectrometr
  • T/FQIA 003-2022 Determination of pesticide residues of chlornitrofen,fluoronitrofen, 2,4-dichlorophenyl benzenesulfonate, cycloprate, kinoprene and hydroprene in tea by gas chromatography-tandem mass spectrometry
  • T/CTMA 007-2020 Determination of Imidaclothiz Residue in Tea Liquid Chromatography-Tandem Mass Spectrometry
  • T/GZTPA 0004-2019 Determination of Various Pesticide Residues in Tea by Liquid Chromatography
  • T/CSTEA 00051-2022 Determination of Methoprene, Methoprene, Diclofenac, Flufenur and Pyramid in Tea Gas Chromatography-Mass Spectrometry Method
  • T/GZTPA 0011-2021 Determination of Fatty Acids in Guizhou Tea by Gas Chromatography-Mass Spectrometry
  • T/FQIA 004-2022 Determination of Dalapon, 2,3,6-TBA residues in tea by liquid chromatography - tandem mass spectrometry method
  • T/CSTEA 00053-2022 Determination of Methyl Bromide Residue in Tea Headspace Gas Chromatography Method
  • T/FQIA 006-2022 Determination of Methyl bromide residues in tea - Headspace gas chromatography-mass spectrometry
  • T/CAQI 272-2022 Determination of Aflatoxin B1 in Tea and Tea Products
  • T/NAIA 0188-2023 Determination of total flavonoids content in wolfberry leaves and wolfberry tea
  • T/GZTPA 0009-2021 Determination of Flavor Volatile Compounds in Guizhou Tea by Gas Chromatography-Mass Spectrometry
  • T/SXSF 13-2025 Determination of Phenolic Content in Hippophae Rhamnoides Leaves and Tea Spectrophotometrically
  • T/FQIA 012-2024 Determination of 30 Pesticide Residues in Fresh Tea Leaves- Liquid Chromatography-tandem Mass Spectrometry Method
  • T/KJFX 001-2017 Rapid Determination of Chlorpyrifos in Tea by Raman Spectroscopy
  • T/FQIA 007-2022 Determination of Chlorthal residues in tea by gas chromatography -tandem mass spectrometry method
  • T/HYCX 002-2024 Hakka small-leaf black tea
  • T/GZTSS 1-2021 Method for determination of theanine,theobromine constituents in tea by Near-infrared diffuse reflectance spectroscopy

Professional Standard - Commodity Inspection

  • SN/T 2072-2008 Determination of tetradifon residues in tea for import and export
  • SN/T 5358-2021 Determination of imidaclothiz residue in tea for export HPLC-MS/MS method
  • SN/T 0925-2000 Method for the determination of tea total ash of for import and export
  • SN/T 0915-2000 Method for the determination of caffeine in tea for import and export
  • SN/T 0920-2000 Method for the determination of water extract of tea for import and export
  • SN/T 0913-2000 Method for the determination of crude fibre in tea for import and export
  • SN/T 1594-2019 Determination of buprofezin residue in tea and herbal tea for export
  • SN/T 0914-2000 Method for the determination of dust and broken tea content in tea for import and export
  • SN/T 0919-2000 Method for the determination of moisture of tea for import and export

Professional Standard - Supply and Marketing Cooperative

  • GH/T 1126-2016 Technical Regulations for Control of Fluoride Content in Tea

Fujian Provincial Standard of the People's Republic of China

Anhui Provincial Standard of the People's Republic of China

  • DB34/T 2818-2017 Determination of chlorothialine residues in fresh tea leaves by liquid chromatography-tandem mass spectrometry
  • DB34/T 3301-2018 Determination of glufosinate-ammonium residues in fresh tea leaves by liquid chromatography-tandem mass spectrometry
  • DB34/T 2890-2017 Rapid Determination of Main Quality Components in Tea-Near Infrared Spectroscopy

Professional Standard - Tobacco

Yunnan Provincial Standard of the People's Republic of China

German Institute for Standardization

British Standards Institution (BSI)

  • BS ISO 18447:2021 Tea. Determination of theaflavins in black tea. Method using high performance liquid chromatography
  • BS ISO 19563:2017 Determination of theanine in tea and instant tea in solid form using high-performance liquid chromatography
  • BS ISO 14502-1:2005(2006) Determination of substances characteristic of green and black tea — Part 1 : Content of total polyphenols in tea — Colorimetric method using Folin - Ciocalteu reagent
  • BS 6049-4:1981 Methods of test for tea-Determination of total ash
  • BS 6049-3:1990 Method of test for tea.-Determination of water extract
  • BS 6049-6:1981 Methods of test for tea-Determination of acid-insoluble ash

Korean Agency for Technology and Standards (KATS)

International Organization for Standardization (ISO)

Association Francaise de Normalisation

COMMISSION FOR THE STANDARDS, METROLOGY AND QUALITY OF VIETNAM (STAMEQ)

  • TCVN 5616-1991 Tea.Method for the determination of broken and dust contents

Bureau of Indian Standards

The Directorate General of Specifications and Metrology (DGSM)

  • OS GSO ISO 1576:2002 Methods of examination and teat for tea-determination of the total ash-water.
  • OS GSO ISO 14502-1:2008 Determination of substances characteristic of green and black tea- part1: content of total polyphenols in tea - colorimetric method using Folin-Ciocalteu reagent
  • OS GSO ISO 1575:2002 METHODS OF TEST FOR TEA DETERMINATION OF TOTAL ASH
  • OS GSO ISO 1577:2002 Methods of examination and teat for tea-determination of the acid soluble and insoluble ash.
  • OS GSO ISO 1573:2002 METHODS OF TEST FOR TEA DETERMINATION OF LOSS IN MASS AT 103?C
  • OS GSO ISO 1578:2002 Methods of examination and teat for tea-determination of water insoluble and insoluble ash.

Kingdom of Bahrain Testing and Metrology Directorate

GCC Standardization Organization

  • GSO ISO 15598:2014 Tea -- Determination of crude fibre content
  • GSO ISO 1578:2002 Methods of examination and teat for tea-determination of water insoluble and insoluble ash.
  • GSO ISO 1577:2002 Methods of examination and teat for tea-determination of the acid soluble and insoluble ash.
  • GSO ISO 14502-1:2008 Determination of substances characteristic of green and black tea- part1: content of total polyphenols in tea - colorimetric method using Folin-Ciocalteu reagent
  • GSO ISO 1574:2002 METHODS OF TEST FOR TEA – DETERMINATION OF WATER EXTRACT
  • GSO ISO 9768:2007 Tea- Methods of test Determination of water extract

National Standardisation Body (ASRO)

Austrian Standards