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Database: 365,228(8 Aug 2026)

Protein detection method

Protein detection method, Total:219 items.

The international standard classification for "Protein detection method" includes: General methods of tests and analysis for food products , Biology. Botany. Zoology , Meat and meat products , food products in general , Fruits. Vegetables , Chemical reagents , Animal feeding stuffs , Cereals, pulses and derived products , Edible oils and fats. Oilseeds , Man-made fibres , Laboratory medicine , Medical Sciences and health care facilities in general , Protection against crime .

The Chinese standard classification for "Protein detection method" includes: Basic standards and general methods , Environmental Condition and General Test Method , Biochemical reagent and clinical analysis reagent , Meat processing and products , Food processing and products in general , Food sanitation , Basic standards and general methods , Other cash crops , Livestock and poultry feed and additive , Cereal crop and forage crop in general , Oil crop and product , Melon, fruit and vegetable planting and product , Basic standard and general method on forestry , Basic Subject in general , Chemical fibre in general , Sanitation in general , Crime judging technology .


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

  • GB/T 34800-2017 Detection method of activity and impurity of proteinase K
  • GB/T 15673-1995 Method for determination of crude protein in edible fungi
  • GB/T 24901-2010 Inspection of grain and oils—Determination of crude protein in maize—Near-infrared method
  • GB/T 14771-1993 Method for determination of protein content in foods
  • GB/T 24870-2010 Inspection of grain and oils—Crude protein and crude fat determination in soybean—Near-infrared method
  • GB/T 14489.2-2008 Inspection of grain and oils—Determination of crude protein in oilseeds
  • GB/T 17811-1999 Determination of digestibility in animal protein feeds--Pepsin method
  • GB/T 6432-1994 Method for the determination of crude protein in feedstuffs
  • GB/T 41366-2022 Livestock and poultry meat quality testing—Determination of moisture,protein and fat—Near-infrared spectroscopy method
  • GB/T 8856-1988 Method for determination of crude protein in fruit and vegetable products
  • GB/T 24897-2010 Inspection of grain and oils—Crude protein determination in rice—Near-infrared method
  • GB/T 5009.5-1985 Method for determination of protein in foods
  • GB/T 46117-2025 Inspection of grain and oils—Determination of water-soluble protein in soya bean
  • GB/T 14489.2-1993 Method for determination of crude protein in oilseed
  • GB/T 35534-2017 Examination methods of pancreatic digest of casein
  • GB/T 35809-2018 Method for analysis of forestry biomass—Determination of protein content
  • GB/T 24899-2010 Inspection of grain and oils—Determination of crude protein in wheat—Near-infrared method
  • GB/T 19495.8-2004 Detection of genetically modified plants and derived products-Protein based methods
  • GB/T 5511-1985 Inspection of grain and oilseeds--Methods for determination of crude protein
  • GB/T 40225-2021 Determination of actin antibody—Western blotting method
  • GB/T 17811-2008 Determination of pepsin digestibility in animal protein feeds - Filtration method
  • GB/T 33410-2016 Determination of the activity of protease K in biochemical reagents
  • GB/T 24871-2010 Inspection of grain and oils—Crude protein determination in wheat flour—Near-infrared method
  • GB 8856-1988 Method for Determination of Crude Protein in Fruit and Vegetable Products
  • GB/T 17811-2025 Determination of pepsin digestibility for animal-derived protein feeds—Filtration method

Jilin Provincial Standard of the People's Republic of China

  • DB22/T 2987-2019 Technical specifications for the detection of Bt protein expression in insect-resistant corn
  • DB22/T 294-2020 Method for identification of adulteration of crude protein in corn gluten meal
  • DB22/T 2002-2014 Protein Rapid Detector in Milk and Milk Powder

Taiwan Provincial Standard of the People's Republic of China

  • CNS 3449-2007 Method of test for milk and milk products - Determination of protein
  • CNS 2770-5-1986 Method of Test for Feeds : Determination of Crude Protein
  • CNS 6511-2008 Method of test for meat and meat products - Determination of crude protein content
  • CNS 5035-1986 Method of Test for Crude Protein in Food
  • CNS 3449-1988 Methods of Test for Milk and Milk Products: The Quantitive Analysis of Protein
  • CNS 2770.5-1986 Method of Test for Feeds : Determination of Crude Protein

Professional Standard - Commodity Inspection

  • SN/T 0803.9-1999 Oil bearing materials for import and export—Method for the determination of crude protein
  • SN/T 0800.3-1999 Cereals and feedstuffs for import and export - Method for the determination of crude protein
  • SN/T 2545-2010 Testing Method of Thermal Denaturation Protein in Animal Derived Food

Group Standards of the People's Republic of China

  • T/CVMA 17-2020 Newcastle disease virus V protein antibody indirect ELISA detection method
  • T/CSTM 00956-2024 Globular protein-Determination of apparent molecular weight-Solution nuclear magnetic resonance spectrometry
  • T/ZGKSL 009-2023 Test method for determination of collagen secreted from human cells induced by recombinant collagen
  • T/SDAQI 010-2021 The rapid detection of allergens (α-lactalbumin and β-lactoglobulin) in milk
  • T/QGCML 2180-2023 Western Blot detection technical specifications
  • T/SHNX 001-2025 Determination of lactoferrin, α-lactalbumin and β-lactoglobulin in raw bovine milk by liquid chromatography-tandem mass spectrometry

Professional Standard - Textile

  • FZ/T 50018-2013 Determination of the protein content of the protein viscose fiber

Tianjin Provincial Standard of the People's Republic of China

  • DB12/T 347-2007 Near-infrared rapid detection method of crude protein content in wheat and corn

Professional Standard - Machinery

Professional Standard - Agriculture

Professional Standard - Medicine

  • YY/T 1847-2022 Anti-human globulin reagents(column agglutination technique, CAT)

Professional Standard - Hygiene

Professional Standard - Public Safety Standards

  • GA/T 765-2020 Methods for detection of human hemoglobin—Rapid test strip
  • GA 765-2008 Detection method of human hemoglobin—Rapid test strip

Professional Standard - Chemical Industry

  • HG/T 3645-1999 Method for the determination of aqueous extractable protein in natural rubber gloves using the Lowry method

National Health Commission of the People's Republic of China

Liaoning Provincial Standard of the People's Republic of China

  • DB21/T 2591-2016 Detection method of foot-and-mouth disease virus non-structural protein monoclonal antibody blocking ELISA

Fujian Provincial Standard of the People's Republic of China

  • DB35/T 1334-2013 Enzyme-linked immunosorbent assay for the detection of non-structural protein antibodies against foot-and-mouth disease

Standard Association of Australia (SAA)

  • AS 1871.9:1976 List of methods for examination of waters Nitrogen (albuminoid)
  • AS ISO 8968.4:2021 Milk and milk products — Determination of nitrogen content, Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)

Czech Standards Institute (UNMZ)

Indonesia Standards

  • SNI 14-1037-1989 Kertas dan karton, Cara uji lapisan salut berperekat protein
  • SNI 14-1038-1989 Kertas dan karton, Cara uji kualitatip kasein dan protein kedelai

German Institute for Standardization

  • DIN 10454:1983-03 Determination of protein content of caseins and caseinates; reference method
  • DIN EN ISO 21572 Berichtigung 1:2005 Food – Methods for the detection of genetically modified organisms and their products – Protein methods
  • DIN EN ISO 21572:2004 Food – Methods for the detection of genetically modified organisms and their products – Protein methods
  • DIN EN ISO 8968-4:2016-09 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016); German version EN ISO 8968-4:2016
  • DIN 10466:2001 Determination of whey protein content in total protein of milk and milk products - Polarographic method
  • DIN 10456:1989-04 Determination of pH of caseins and caseinates; reference method
  • DIN ISO 5546:2020-12 Caseins and caseinates - Determination of pH (Reference method) (ISO 5546:2010)
  • DIN EN ISO 8968-4 E:2013-09 Determination of nitrogen content of milk and milk products Part 4: Determination of protein and non-protein nitrogen content and calculation of pure protein content (Reference Method) (Draft)
  • DIN ISO 5546 E:2020-08 Caseins and caseinates - Determination of pH (Reference method)
  • DIN 10470:2011 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
  • DIN 10464:1994-08 Determination of casein content, casein and whey protein contents in total protein of milk and milk products - Casein-phosphorus method
  • DIN EN ISO 8968-4 E:2013 Draft Document - Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non protein nitrogen content and true protein content calculation (Reference method) (ISO/DIS 8968-4:2013); German version prEN ISO 8968-...
  • DIN ISO 5550 E:2020-06 Caseins and caseinates - Determination of moisture content (Reference method)
  • DIN 10470:1999 Determination of whey protein content and casein content in total protein of milk and milk products - Derivative spectroscopic method
  • DIN ISO 5545:2020-12 Rennet caseins and caseinates - Determination of ash (Reference method) (ISO 5545:2008)
  • DIN 10464:1994 Determination of casein content, casein and whey protein contents in total protein of milk and milk products - Casein-phosphorus method
  • DIN 10453:1983-03 Determination of water content of caseins and caseinates; reference method
  • DIN 10452:1983-03 Determination of ash of rennet caseins and caseinates; reference method
  • DIN ISO 5550:2020-12 Caseins and caseinates - Determination of moisture content (Reference method) (ISO 5550:2006)
  • DIN ISO 5545 E:2020-06 Rennet caseins and caseinates - Determination of ash (Reference method)

Japanese Industrial Standards Committee (JISC)

  • JIS K 0602:2000 Proteins -- Serum albumin -- Methods for quantitative analysis
  • JIS K 0605:2000 Proteins -- Trypsin -- Methods for quantitative analysis
  • JIS K 0606:2000 Proteins -- Transferrin -- Methods for quantitative analysis
  • JIS K 0603:2000 Proteins -- Immunoglobulin -- Methods for quantitative analysis
  • JIS K 0604:2000 Proteins -- Monoclonal IgG -- Methods for quantitative analysis

Austrian Standards

Magyar Szabványügyi Testület

Gosstandart of Russia

  • GOST 25179-1990 Milk. Methods for determination of protein
  • GOST R 51470-1999 Caseins and caseinates. Method for determination of protein content
  • GOST 25011-1981 Meat and meat products. Methods of protein determination
  • GOST 25179-2014 Milk and milk products. Method for determination of protein
  • GOST 25011-2017 Meat and meat products. Protein determination methods
  • GOST 34551-2019 Сonfectionery. Method for determination of mass fraction of protein
  • GOST R 51467-1999 Caseins and caseinates. Method for determination of pH
  • GOST 31978-2012 Caseins and caseinates. Method for determination of pH
  • GOST 10846-1991 Grain and products of its processing. Method for determination of protein
  • GOST ISO 8968-4-2021 Milk and dairy products. Determination of nitrogen content. Part 4. Determination of protein and non-protein nitrogen content and calculation of true protein content (reference method)..
  • GOST R 51464-1999 Caseins and caseinates. Method for determination of water content
  • GOST R 51466-1999 Caseins. Method for determination of "fixed ash" mass fraction
  • GOST ISO 5550-2017 Caseins and caseinates. Determination of moisture content (Reference method)
  • GOST 13979.3-1968 Oilcakes oil-meals. Methods of determination of soluble proteins
  • GOST R 51454-1999 Caseins and caseinates. Method of determination of nitrate and nitrite contents
  • GOST ISO 21572-2009 Food products Analytical methods for the detection of genetically modified organisms and derivative products Protein based methods
  • GOST ISO 5548-2016 Caseins and caseinates. Photometric method for determining the mass fraction of lactose
  • GOST 28075-1989 Vegetable fodder. Method for the determination of crude protein splitting
  • GOST R 54478-2011 Grain. Methods of determination quantity and quality of gluten in wheat
  • GOST 20264.2-1988 Enzyme preparations. Methods for determination of proteolytic activity

Korean Agency for Technology and Standards (KATS)

  • KS H 1204-2012 Testing method for crude proteins content
  • KS H 1204-2001 Testing method for crude proteins content
  • KS H 1204-2022 Testing method for crude proteins content
  • KS H 1204-2021 Testing method for crude proteins content
  • KS H ISO 5549:2021 Caseins and caseinates — Determination of protein content(Reference method)
  • KS H ISO 5549:2006 Caseins and caseinates-Determination of protein content(Reference method)
  • KS H ISO 5549-2021 Caseins and caseinates — Determination of protein content(Reference method)
  • KS H ISO 5549-2006(2016) Caseins and caseinates-Determination of protein content(Reference method)
  • KS J ISO 21572-2019 Foodstuffs-Methods for the detection of genetically modified organisms and derived products-Protein based methods
  • KS P 1015-2012 Establishment of a reference material and evaluation method for troponin-based cardiovascular diagnostics
  • KS J ISO 21572:2009 Foodstuffs-Methods for the detection of genetically modified organisms and derived products-Protein based methods
  • KS J ISO 21572-2009(2019) Foodstuffs-Methods for the detection of genetically modified organisms and derived products-Protein based methods
  • KS J ISO 21572-2024 Foodstuffs-Methods for the detection of genetically modified organisms and derived products-Protein based methods
  • KS H ISO 5546:2006 Caseins and caseinates-Determination of pH(Reference method)

American Society for Testing and Materials (ASTM)

  • ASTM F831-83 Net Protein Ratio (NPR) Test Method
  • ASTM D7818-12 Standard Test Method for Enumeration of Proteolytic Bacteria in Fresh (Uncured) Hides and Skins
  • ASTM F830-83 Method for preparing meat, by-products and meat products for determining protein efficiency ratio or net protein ratio

International Organization for Standardization (ISO)

  • ISO 5549:1978 Caseins and caseinates; Determination of protein content (Reference method)
  • ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
  • ISO 21572:2004 Foodstuffs - Methods for the detection of genetically modified organisms and derived products - Protein based methods
  • ISO 21572:2013 Foodstuffs - Molecular biomarker analysis - Protein-based methods
  • ISO 8968-4:2016 | IDF 20-4:2016 Milk and milk products — Determination of nitrogen content — Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
  • ISO 5546:2010 | IDF 115:2010 Caseins and caseinates — Determination of pH (Reference method)
  • ISO 5546:2010|IDF 115:2010 Determination of pH value of casein and caseinate (standard method)
  • ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
  • ISO 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method

Bureau of Indian Standards

  • IS 7481-1974 How to measure protein efficiency ratio (PER)
  • IS 18836-2024 Milk and Milk Products - Determination of Nitrogen Content - Determination of Protein and Non-Protein Nitrogen Content and True Protein Content Calculation (Reference Method)
  • IS 7219-1973 Methods for determination of protein in food and feed
  • IS 11962-1987 Method for determination of ash content in chymosin casein and caseinate (reference method)
  • IS 11962-2012 Rennet Caseins and Caseinates—— Determination of Ash (Reference Method)
  • IS 11920-2012 Cassein and Caseinates -Determination of Moisture Content (Reference Method)
  • IS/ISO 21572-2019 Foodstuffs-Molecular Biomarker Analysis- Immunochemical Methods for the Detection and Quantification of Proteins
  • IS 11963-1987 Photometric method for determination of lactose content in casein and caseinate
  • IS 11888-2005 Casiens And Caseinated - Determination Of Contents Of Scorched Particles And Of Extraneous Matter

GCC Standardization Organization

  • GSO 2505:2016 Method of tests for soya protein products
  • GSO ISO 8968-4:2021 Milk and milk products — Determination of nitrogen content — Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)

Spanish Association for Standardization (UNE)

  • AENOR UNE 34400-7:1967 Test methods for wheat flour. Determination of protein.
  • UNE-EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016)
  • UNE 34400-7:1967 TEST METHODS OF WHEAT FLOUR. PROTEIN DETERMINATION
  • UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
  • AENOR UNE-EN ISO 8968-4:2016 Milk and dairy products. Determination of nitrogen content. Part 4: Determination of protein and non-protein nitrogen content and calculation of true protein content (Reference method). (ISO 8968-4:2016)
  • UNE-EN ISO 21572:2004 Foodstuffs - Methods for the detection of genetically modified organisms and derived products - Protein based methods (ISO 21572:2004)
  • UNE 34081:1975 ANALYSIS METHODS FOR CHOCOLATES. MILK PROTEINS.

South African Bureau of Standard

  • SANS 21572:2005 Foodstuffs - Methods for the detection of genetically modified organisms and derived products - Protein based methods

Lithuanian Standards Office

  • LST ISO 5549:2001 Caseins and caseinates. Determination of protein content (Reference method) (identical ISO 5549:1978)
  • LST EN ISO 21572:2004/AC:2005 Foodstuffs - Methods for the detection of genetically modified organisms and derived products - Protein based methods (ISO 21572:2004)
  • LST EN ISO 21572:2004 Foodstuffs - Methods for the detection of genetically modified organisms and derived products - Protein based methods (ISO 21572:2004)

British Standards Institution (BSI)

  • BS EN ISO 8968-4:2016 Milk and milk products. Determination of nitrogen content. Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
  • BS EN ISO 21572:2004 Foodstuffs. Methods for the detection of genetically modified organisms and derived products. Protein based methods
  • BS 6248-10:1986 Caseins and caseinates-Method for determination of fat (gravimetric reference method)
  • BS 6248-9:1984 Caseins and caseinates-Method for the determination of scorched particles
  • BS ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
  • BS EN ISO 8968-4:2016(2017) Milk and milk products — Determination of nitrogen content Part 4 : Determination of protein and non - protein nitrogen content and true protein content calculation (Reference method)
  • BS ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)

Ente Nazionale Italiano di Unificazione

  • UNI 22632:2002 Oilseeds - Vegetable proteins content - Determination of total proteins (biuret method)
  • UNI EN ISO 21572:2006 Foodstuffs - Methods for the detection of genetically modified organisms and derived products - Protein based methods
  • UNI EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
  • UNI ISO 5543:2018 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)
  • UNI EN ISO 21572:2019 Foodstuffs - Molecular biomarker analysis - Immunochemical methods for the detection and quantification of proteins
  • UNI 22629:2002 Oilseeds - Vegetable proteins content - Determination of soluble proteins (Bradford method)

The Directorate General of Specifications and Metrology (DGSM)

Danish Standards Foundation

  • DANSK DS/EN ISO 8968-4:2016 Milk and milk products – Determination of nitrogen content – Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)

Association Francaise de Normalisation

  • NF V04-387:1985 Caseins and caseinates. Determination of protein content (reference method).
  • NF V04-221-4*NF EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4 : determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
  • NF ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
  • NF EN ISO 21572:2019 Food products - Molecular biomarker analysis - Immunochemical methods for protein detection and quantification
  • NF EN ISO 8968-4:2016 Milk and dairy products - Determination of nitrogen content - Part 4: determination of protein and non-protein nitrogen content and calculation of true protein content (Reference method)
  • NF ISO 5550:2007 Caseins and caseinates - Determination of moisture content (reference method)

Standards Norway

  • NS-EN ISO 8968-4:2016 Milk and milk products — Determination of nitrogen content — Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016)
  • NS-EN ISO 21572:2004 Foodstuffs - Methods for the detection of genetically modified organisms and derived products - Protein based methods (ISO 21572:2004)

National Standardisation Body (ASRO)

  • STAS 21/6-1973 OILSEED RESIDUES Determination of protein of protein brut content
  • STAS 2213/17-1976 SWEETS Determination of total proteinic content and milk proteinic substance content
  • STAS SR 13348-1-1996 Tea. Analysis methods. Determination of proteic nitrogen by the Kjeldahl method. Spectrophotometric method
  • STAS 6182/44-1977 WIN E Determination of proteins

Kingdom of Bahrain Testing and Metrology Directorate

  • BH GSO ISO 8968-4:2022 Milk and milk products — Determination of nitrogen content — Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)

European Committee for Standardization (CEN)

  • EN ISO 8968-4:2001 Milk - Determination of Nitrogen Content - Part 4: Determination of Non-Protein Nitrogen Content

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

  • TCVN 7607-2007 Foodstuffs.Methods of analysis for the detection of genetically modified organisms and derived products.Protein based methods
  • TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content

Swedish Institute for Standards

  • SS-EN ISO 8968-4:2017 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016)

International Dairy Federation (IDF)

  • IDF 90-2008 Rennet caseins and caseinates - Determination of ash (Reference method)
  • IDF 78-2006 Caseins and caseinates. Determination of moisture content (Reference method)

Society of Automotive Engineers (SAE)

  • SAE AMS1800B Foam, Fire Extinguishing Liquid Protein and Fluoroprotein
  • SAE AMS1800-2011 FOAM, FIRE EXTINGUISHING LIQUID Protein and Fluoroprotein
  • SAE AMS1800 Foam, Fire Extinguishing Liquid Protein and Fluoroprotein
  • SAE AMS1800A Foam, Fire Extinguishing Liquid Protein and Fluoroprotein

Argentine Institute of Standardization

Clinical and Laboratory Standards Institute

  • CLSI C64-2021 Quantitative Measurement of Proteins and Peptides by Mass Spectrometry