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Database: 365,228(8 Aug 2026)

protein quantification

protein quantification, Total:223 items.

The international standard classification for "protein quantification" includes: food products in general , Man-made fibres , Animal feeding stuffs , Fruits. Vegetables , Edible oils and fats. Oilseeds , Tobacco, tobacco products and related equipment .

The Chinese standard classification for "protein quantification" includes: Food sanitation , Cereal crop and product , Chemical fibre in general , Livestock and poultry feed and additive , Other cash crops , Oil crop and product , Basic standards and general methods , Medical apparatus and devices in general , Tobacco , Fire-fighting equipment and devices , Medical and foodstuff rubber products , Basic standard and general method on forestry .


Professional Standard - Agriculture

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 3449-1988 Methods of Test for Milk and Milk Products: The Quantitive Analysis of Protein

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/ZJBX 10-2021 Determination of the proportion of protein hydrolysates with relative molecular weight less than 1000u in protein feed
  • T/CIET 350-2024 Quality requirements for collagen casings
  • T/NAHIEM 72-2023 Quality requirements for medical collagen products
  • T/ZGKSL 012-2023 Quality requirements for collagen products

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

Hebei Provincial Standard of the People's Republic of China

国家药监局

  • YY/T 0616.7-2020 Medical gloves for single use—Part 7:Test method for the immunological measurement of antigenic protein

Professional Standard - Tobacco

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

Professional Standard - Public Safety Standards

  • GA/T 52-1993 Quality grading for protein-foam fire extinguishing agent and fluoroprotein-foam fire extinguishing agent

Professional Standard - Commodity Inspection

  • SN/T 1819-2006 Determination of latex protein in medical gloves for import and export-Modified Lowry method
  • SN/T 3926-2014 Determination of protein content in dairy foods,egg foods and soy foods for export - Coomassie brilliant blue method

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

  • GB/T 35809-2018 Method for analysis of forestry biomass—Determination of protein content

Spanish Association for Standardization (UNE)

  • UNE 64011:1970 MIXED FEEDS AND RAW MATERIALS. QUANTITATIVE DETERMINATION OF THE RAW PROTEIN
  • UNE 64 011 Determination of the quality of Kjeldahl semi-trace crude protein in compound feed and its initial materials
  • UNE 64 012 Determination of the quality of crude protein in compound feed and its initial materials (by macroscopic method)
  • 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 34-871-1986 Processed cheese. Determination of protein content
  • UNE 34871:1986 PROCESSED CHEESE PRODUCTS. DETERMINATION OF THE PROTEIN CONTENT.
  • UNE 64102:1977 MIXED FEEDS AND RAW MATERIALS. TOTAL PROTEIN (RAW PROTEIN)
  • UNE 34827:1983 DETERMINATION OF THE CASEIN CONTENT OF MILK.

RO-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 6182/44-1977 WIN E Determination of proteins
  • STAS 6514-1975 FISH AND FISH PRODUCTS Determination of total proteic matters
  • STAS SR 4895-6-1997 Tobacco and tobacco prodocts Determination of total proteins content (albumines)

Japanese Industrial Standards Committee (JISC)

Korean Agency for Technology and Standards (KATS)

International Organization for Standardization (ISO)

  • ISO 5549:1978 Caseins and caseinates; Determination of protein content (Reference method)
  • 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 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
  • ISO 5739:2003|IDF 107:2003 Determination of casein and caseinate coke particles and foreign matter content
  • ISO 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
  • ISO 8968-5:2001 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
  • ISO 5550:2006|IDF 78:2006 Caseins and caseinates — Determination of moisture content (Reference method)
  • ISO 8968-5:2001|IDF 20-5:2001 Determination of milk nitrogen content Part 5: Determination of protein nitrogen content
  • ISO 5739:1983 Caseins and caseinates; Determination of scorched particles content
  • ISO 5550:2006 Caseins and caseinates - Determination of moisture content (Reference method)
  • ISO 8968-5:2001 | IDF 20-5:2001 Milk — Determination of nitrogen content — Part 5: Determination of protein-nitrogen content
  • ISO 5548:2004 Caseins and caseinates - Determination of lactose content - Photometric method
  • ISO 5548:2004|IDF 106:2004 Caseins and caseinates — Determination of lactose content — Photometric method
  • ISO 5548:2004 | IDF 106:2004 Caseins and caseinates — Determination of lactose content — Photometric method
  • ISO 8968-4:2001 Milk - Determination of nitrogen content - Part 4: Determination of non-protein-nitrogen content
  • ISO 5550:1978 Caseins and caseinates; Determination of water content (Reference method)
  • ISO 8968-4:2001|IDF 20-4:2001 Determination of milk nitrogen content Part 4: Determination of non-protein nitrogen content
  • ISO 5550:2006 | IDF 78:2006 Caseins and caseinates — Determination of moisture content (Reference method)
  • ISO 5548:1980 Caseins and caseinates; Determination of lactose content; Photometric method
  • ISO 5543:2004 | IDF 127:2004 Caseins and caseinates — Determination of fat content — Gravimetric method (Reference method)
  • ISO 5983:1979 Animal feeding stuffs; Determination of nitrogen content and calculation of crude protein content
  • ISO 5543:2004 Caseins and caseinates - Determination of fat content - Gravimetric method (Reference method)
  • ISO 5543:2004|IDF 127:2004 Gravimetric method for determination of fat content in casein and caseinate (reference method)
  • ISO 5543:1986 Caseins and caseinates; Determination of fat content; Gravimetric method (Reference method)
  • ISO 5739:2003 | IDF 107:2003 Caseins and caseinates — Determination of contents of scorched particles and of extraneous matter
  • ISO 5542:1984 Milk; Determination of protein content; Amido black dye-binding method (Routine method)
  • ISO 20418-1:2018 Textiles - Qualitative and quantitative proteomic analysis of some animal hair fibres - Part 1: Peptide detection using LC-ESI-MS with protein reduction

KR-KS

  • KS H ISO 5549-2021 Caseins and caseinates — Determination of protein content(Reference method)
  • KS H 1204-2022 Testing method for crude proteins content
  • KS H ISO 5739-2021 Caseins and caseinates — Determination of scorched particles content
  • KS H ISO 5548-2020 Caseins and caseinates-Determination of lactose content-Photometric method
  • KS H ISO 5543-2021 Caseins and caseinates — Determination of fat content — Gravimetric method(Reference method)
  • KS K ISO 20418-3-2023 Textiles — Qualitative and quantitative proteomic analysis of some animal hair fibres — Part 3: Peptide detection using LC-MS without protein reduction

AT-ON

German Institute for Standardization

  • DIN 10464:1994 Determination of casein content, casein and whey protein contents in total protein of milk and milk products - Casein-phosphorus method
  • DIN EN ISO 8968-4:2016-09 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 10470:2011 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
  • DIN 10466:2001 Determination of whey protein content in total protein of milk and milk products - Polarographic 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:2013-09 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 10470:1999 Determination of whey protein content and casein content in total protein of milk and milk products - Derivative spectroscopic method
  • 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 10470:2011-07 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
  • DIN 10472:1996 Determination of casein and whey protein contents of milk and milk products - Electrophoretic method
  • DIN EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content (ISO 8968-5:2001); German version EN ISO 8968-5:2001
  • 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 10466:2001-09 Determination of whey protein content in total protein of milk and milk products - Polarographic method
  • DIN EN ISO 8968-4:2002 Milk - Determination of nitrogen content - Part 4: Determination of the non-protein-nitrogen content (ISO 8968-4:2001); German version EN ISO 8968-4:2001
  • DIN EN ISO 21415-4:2007 Wheat and wheat flour - Gluten content - Part 4: Determination of dry gluten from wet gluten by a rapid drying method (ISO 21415-4:2006); German version EN ISO 21415-4:2007
  • DIN 10454:1983 Determination of protein content of caseins and caseinates; reference method

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 ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
  • BS EN ISO 8968-5:2002 Milk. Determination of nitrogen content. Determination of protein-nitrogen content
  • BS EN ISO 8968-4:2002 Milk. Determination of nitrogen content. Determination of non-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 ISO 5550:2006 Caseins and caseinates - Determination of moisture content (Reference method)
  • BS ISO 5548:2004 Caseins and caseinates - Determination of lactose content - Photometric methods
  • BS EN ISO 21415-3:2007 Wheat and wheat flour - Gluten content - Determination of dry gluten from wet gluten by an oven drying method
  • BS ISO 5543:2004 Caseins and caseinates - Determination of fat content - Gravimetric method (reference method)

GSO

  • 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)
  • 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)
  • GSO ISO 8968-5:2014 Milk -- Determination of nitrogen content -- Part 5: Determination of protein-nitrogen content
  • OS GSO ISO 8968-5:2014 Milk -- Determination of nitrogen content -- Part 5: Determination of protein-nitrogen content
  • OS GSO ISO 5548:2015 Caseins and caseinates -- Determination of lactose content -- Photometric method
  • BH GSO ISO 5543:2016 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)
  • OS GSO ISO 5543:2015 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)
  • GSO ISO 5550:2015 Caseins and caseinates -- Determination of moisture content (Reference method)
  • GSO ISO 5543:2015 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)
  • GSO ISO 5548:2015 Caseins and caseinates -- Determination of lactose content -- Photometric method
  • OS GSO ISO 5550:2015 Caseins and caseinates -- Determination of moisture content (Reference method)
  • BH GSO ISO 5739:2016 Caseins and caseinates -- Determination of contents of scorched particles and of extraneous matter
  • GSO ISO 5739:2015 Caseins and caseinates -- Determination of contents of scorched particles and of extraneous matter
  • GSO 2101:2010 Protein-Rich concentrated Nutrient Supplementary foods

Lithuanian Standards Office

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

Association Francaise de Normalisation

  • 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 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 V04-389:1985 Caseins and caseinates. Determination of scorched particles content.
  • NF V04-388*NF ISO 5548:2008 Caseins and caseinates - Determination of lactose content - Photometric method.
  • NF V04-221-5:2002 Milk - Determination of nitrogen content - Part 5 : determination of protein-nitrogen content.
  • NF V04-382:1988 Caseins and caseinates. Determination of fat content. Gravimetric method (reference method).
  • NF ISO 5548:2008 Caseins and caseinates - Determination of lactose content - Photometric method
  • NF ISO 5550:2007 Caseins and caseinates - Determination of moisture content (reference method)
  • NF V04-221-4:2002 Milk - Determination of nitrogen content - Part 4 : determination of non-protein nitrogen content.
  • NF V18-100:1977 Animal feeding stuffs.determination of nitrogen for the calcultion of crude protein content.
  • NF EN ISO 20418-3:2020 Textiles - Qualitative and quantitative proteomic analysis of certain animal fibers - Part 3: detection of peptides by LC-MS without protein reduction
  • NF V04-382:2008 Caseins and caseinates - Determination of fat content - Gravimetric method (Reference method).
  • NF EN ISO 20418-1:2018 Textiles - Qualitative and quantitative proteomic analysis of certain animal fibers - Part 1: detection of peptides by LC ESI MS with protein reduction

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)

CZ-CSN

  • 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 46 7092-27-1998 Testing methods for feeding stuffs - Part 27: Determination of the protein content

SCC

  • 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)
  • 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)
  • 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)
  • 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 10470 E:2010 Draft Document - Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
  • BS 6248-10:1986 Caseins and caseinates-Method for determination of fat (gravimetric reference method)
  • DANSK DS/ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
  • AENOR UNE 34400-7:1967 Test methods for wheat flour. Determination of protein.

RU-GOST R

  • 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 R 51454-1999 Caseins and caseinates. Method of determination of nitrate and nitrite contents
  • GOST 25179-1990 Milk. Methods for determination of protein
  • GOST R 51464-1999 Caseins and caseinates. Method for determination of water content
  • GOST R 51465-1999 Caseins and caseinates. Determination of scorched particles content
  • GOST 13496.4-1984 Fodder, mixed fodder and animal feed raw stuff. Methods of nitrogen and crude protein determination
  • GOST R 52993-2008 Caseins and caseinates. Determination of moisture content (Reference method)
  • GOST R 51469-1999 Caseins and caseinates. Photometric method for determination of lactose content
  • GOST 13496.4-1993 Fodder, mixed fodder and animal feed raw stuff. Methods of nitrogen and crude protein determination
  • GOST R 51466-1999 Caseins. Method for determination of "fixed ash" mass fraction
  • GOST R 54478-2011 Grain. Methods of determination quantity and quality of gluten in wheat
  • GOST R 51463-1999 Rennet caseins and caseinates. Method for determination of ASH content
  • GOST 25179-2014 Milk and milk products. Method for determination of protein
  • GOST R 53951-2010 Milk and milk-containing products. Determination of mass part of protein by Kjeldahl method
  • GOST 23327-1978 Milk. Methods for determination of the total protein content

PL-PKN

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

GOSTR

  • GOST 34551-2019 Сonfectionery. Method for determination of mass fraction of protein
  • GOST 34454-2018 Dairy products. Determination of protein content by the Kjeldahl method
  • GOST 13496.4-2019 Fodder, мixed fodder and raw mixed fodder. Methods of nitrogen and crude protein determination

Danish Standards Foundation

  • DS/ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
  • DS/EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
  • DS 2253:1983 Water quality. Determination of aerobic proteclytic bacteria at 30 centigrades

CEN - European Committee for Standardization

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

International Dairy Federation (IDF)

  • IDF 107-2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
  • IDF 20-5-2001 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
  • IDF 78-2006 Caseins and caseinates. Determination of moisture content (Reference method)
  • IDF 20-4-2001 Milk - Determination of nitrogen content - Part 4: Determination of non-protein-nitrogen content

HU-MSZT

  • MNOSZ 17619-1954 Definition of the concept of protein content in preserved foods
  • MSZ 6830/5-1981 Determination of feed nutrition for livestock herds, determination of digestible protein content

European Committee for Standardization (CEN)

  • 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)

IN-BIS

  • IS 2006-1988 Methods for the quantitative chemical analysis of binary mixtures of protein fibers and certain other non-protein fibers
  • IS 1167-1965 Casein specifications (food quality)
  • IS 7481-1974 How to measure protein efficiency ratio (PER)
  • IS 6557-1972 Protein Flakes Specifications Not Food Quality
  • IS 11888-1987 Method for determination of charred particle content in casein and caseinates

PT-IPQ

  • NP 1986-1991 Milks Determination of protein content. Kjeldahl technique

Society of Automotive Engineers (SAE)

VN-TCVN

  • TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
  • TCVN 7253-2003 Tobacco and tobacco products.Determination of nitrogen 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
  • TCVN 5537-1991 Sweetened condensed milk.Determination of total protein content
  • TCVN 5461-1991 Synthetic detergents.Determination of proteinous activity
  • TCVN 7871-4-2008 Wheat and wheat ftour.Gluten content.Part 4: Determination of dry gluten from wet gluten by a rapid drying method

CU-NC

South African Bureau of Standard

  • SANS 8968-5:2006 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
  • SANS 8968-4:2006 Milk - Determination of nitrogen content Part 4: Determination of non-protein-nitrogen content

CH-SNV

TN-INNORPI

AR-IRAM