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Method for Determination of Protein Content in Food

Method for Determination of Protein Content in Food, Total:128 items.

The international standard classification for "Method for Determination of Protein Content in Food" includes: food products in general , Fruits. Vegetables , Vegetables and derived products , Milk and processed milk products , Milk and milk products in general , Man-made fibres , Tobacco, tobacco products and related equipment .

The Chinese standard classification for "Method for Determination of Protein Content in Food" includes: Food sanitation , Basic standards and general methods , Other cash crops , Vegetable processing and products , Basic standard and general method on forestry , Children foods , Chemical fibre in general , Tobacco .


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

Professional Standard - Commodity Inspection

  • SN/T 5071-2018 Determination of 19 kinds of nonprotein nitrogen compounds infoodstuffs of origin for export - LC-MS/MS method
  • SN/T 3926-2014 Determination of protein content in dairy foods,egg foods and soy foods for export - Coomassie brilliant blue method

Professional Standard - Agriculture

National Health Commission of the People's Republic of China

Taiwan Provincial Standard of the People's Republic of China

  • CNS 5035-1986 Method of Test for Crude Protein in Food
  • CNS 6511-2008 Method of test for meat and meat products - Determination of crude protein content

Professional Standard - Textile

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

Group Standards of the People's Republic of China

  • T/CSIQ 77001-2020 Determination of α-Lactalbumin contents in dairy products— HPLC method
  • T/BPCT 001-2023 Determination of A2 β-casein content in cow milk and cow milk products by high performance liquid chromatography-mass spectrometry

Professional Standard - Tobacco

  • YC/T 166-2003 Tobacco and tobacco products - Determination of total proteins content(Albumins)

Czech Standards Institute (UNMZ)

  • CSN 57 0153-1986 Testing methods for meat products and sterilized food in preserves. Determination of protein content according to Kjeldahl
  • CSN 57 0111-5-2002 Testing methods for casein and caseinates - Determination of protein content
  • CSN 570111-5-2002 Testing methods for casein and caseinates - Determination of protein content
  • CSN 57 0105 Cast.5-1984 Powdered and condensed milk products. Testing methods. Determination of protein content
  • CSN 46 7092-27-1998 Testing methods for feeding stuffs - Part 27: Determination of the protein content
  • CSN 57 0111 Cast.4-1979 Testing methods for asein. Determination f fat content

Bureau of Indian Standards

  • IS 7219-1973 Methods for determination of protein in food and feed
  • 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 11888-1987 Method for determination of charred particle content in casein and caseinates
  • IS 11963-1987 Photometric method for determination of lactose content in casein and caseinate
  • IS 9487-1980 Specification for "ready-to-eat" protein-rich puffed foods
  • IS 11920-2012 Cassein and Caseinates -Determination of Moisture Content (Reference Method)
  • IS 11888-2005 Casiens And Caseinated - Determination Of Contents Of Scorched Particles And Of Extraneous Matter

Austrian Standards

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 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 EN ISO 8968-5:2002 Milk. Determination of nitrogen content. Determination of protein-nitrogen content
  • BS EN ISO 21415-4:2007 Wheat and wheat flour - Gluten content - Determination of dry gluten from wet gluten by a rapid drying method
  • BS EN ISO 8968-4:2002 Milk. Determination of nitrogen content. Determination of non-protein nitrogen content

European Committee for Standardization (CEN)

  • EN ISO 8968-4:2001 Milk - Determination of Nitrogen Content - Part 4: Determination of Non-Protein Nitrogen Content
  • 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 V03-032:2024 Foodstuffs - Determination of the nitrogen content by the Kjeldahl method and calculation of the protein content
  • 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 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 V04-387:1985 Caseins and caseinates. Determination of protein content (reference method).
  • NF ISO 5550:2007 Caseins and caseinates - Determination of moisture content (reference method)

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)

Ente Nazionale Italiano di Unificazione

  • 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 EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Determination of protein- nitrogen content
  • UNI ISO 5543:2018 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)

Standard Association of Australia (SAA)

  • 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)

German Institute for Standardization

  • DIN 10470:2011 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
  • 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 10464:1994-08 Determination of casein content, casein and whey protein contents in total protein of milk and milk products - Casein-phosphorus method
  • DIN 10464:1994 Determination of casein content, casein and whey protein contents in total protein of milk and milk products - Casein-phosphorus method
  • DIN 10470:1999 Determination of whey protein content and casein content in total protein of milk and milk products - Derivative spectroscopic method
  • DIN 10454:1983-03 Determination of protein content of caseins and caseinates; reference method
  • 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 10470:2011-07 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
  • DIN 10466:2001-09 Determination of whey protein content in total protein of milk and milk products - Polarographic 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 10466:2001 Determination of whey protein content in total protein of milk and milk products - Polarographic method
  • DIN 10453:1983-03 Determination of water content of caseins and caseinates; reference method
  • DIN 10470 E:2010 Draft Document - Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
  • DIN 10470 E:2010-05 Draft Document - Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
  • DIN 10472:1996-06 Determination of casein and whey protein contents of milk and milk products - Electrophoretic method
  • DIN 10470:1999-07 Determining of whey protein content and casein content in total protein of milk and milk products by derivative spectroscopy
  • DIN 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); German version EN ISO 8968-4:2016
  • DIN ISO 5550 E:2020-06 Caseins and caseinates - Determination of moisture content (Reference method)
  • DIN ISO 5550:2020-12 Caseins and caseinates - Determination of moisture content (Reference method) (ISO 5550:2006)
  • 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

Argentine Institute of Standardization

Spanish Association for Standardization (UNE)

  • 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)
  • 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 34871:1986 PROCESSED CHEESE PRODUCTS. DETERMINATION OF THE PROTEIN CONTENT.
  • UNE 34827:1983 DETERMINATION OF THE CASEIN CONTENT OF MILK.

Magyar Szabványügyi Testület

Korean Agency for Technology and Standards (KATS)

GCC Standardization Organization

  • 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)
  • GSO 2101:2010 Protein-Rich concentrated Nutrient Supplementary foods

International Organization for Standardization (ISO)

  • 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 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 5549:1978 Caseins and caseinates; Determination of protein content (Reference method)
  • ISO 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method

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)

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)

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

  • TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
  • TCVN 7871-3-2008 Wheat and wheat flour.Gluten content.Part 3: Determination of dry gluten from wet gluten by an oven drying method

Gosstandart of Russia

  • 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 51470-1999 Caseins and caseinates. Method for determination of protein content
  • GOST 10846-1991 Grain and products of its processing. Method for determination of protein
  • GOST 23327-1978 Milk. Methods for determination of the total protein content
  • GOST 34454-2018 Dairy products. Determination of protein content by the Kjeldahl method
  • GOST 23327-1998 Milk and milk products. Determination of mass part of total nitrogen by Kjeldahl method and determination of mass part of protein
  • GOST R 51464-1999 Caseins and caseinates. Method for determination of water content
  • GOST R 51454-1999 Caseins and caseinates. Method of determination of nitrate and nitrite contents
  • GOST R 54478-2011 Grain. Methods of determination quantity and quality of gluten in wheat
  • GOST ISO 5550-2017 Caseins and caseinates. Determination of moisture content (Reference method)

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)

Polski Komitet Normalizacyjny (PKN)

  • PN C04288-14-1987 Technical fats Methods of testing Determination of protein content

National Standardisation Body (ASRO)

  • STAS 2213/17-1976 SWEETS Determination of total proteinic content and milk proteinic substance content
  • STAS 21/6-1973 OILSEED RESIDUES Determination of protein of protein brut content
  • STAS 6356-1976 MILK AND MILK PRODUCTS Proteic substances determinat ion
  • STAS 6514-1975 FISH AND FISH PRODUCTS Determination of total proteic matters
  • SR ISO 5549:1996 Caseins and caseinates - Determination of protein content (Reference method)

Lithuanian Standards Office

  • LST ISO 5549:2001 Caseins and caseinates. Determination of protein content (Reference method) (identical ISO 5549:1978)

Indonesia Standards

  • SNI 01-2354.4-2006 Cara uji kimia - Bagian 4: Penentuan kadar protein dengan metode total nitrogen pada produk perikanan

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

South African Bureau of Standard

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

International Dairy Federation (IDF)

  • IDF 78-2006 Caseins and caseinates. Determination of moisture content (Reference method)

Tunisia Institut National de la Normalisation et de la Propriété Industrielle