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Database: 365,228(8 Aug 2026)

protein analyzer

protein analyzer, Total:218 items.

The international standard classification for "protein analyzer" includes: Man-made fibres , Animal feeding stuffs , Edible oils and fats. Oilseeds , food products in general , Fruits. Vegetables , General methods of tests and analysis for food products , Textiles in general , Laboratory medicine , Protection against crime , Biology. Botany. Zoology .

The Chinese standard classification for "protein analyzer" includes: Chemical fibre in general , Chemical fibre , Livestock and poultry feed and additive , Oil crop and product , Basic standards and general methods , Food processing and products in general , Other cash crops , Food sanitation , Basic standards and general methods , Melon, fruit and vegetable planting and product , Silk and silk fabric in general , Cereal crop and product , Medical laboratory equipment , Cereal crop and forage crop in general , Fire-fighting equipment and devices , Crime judging technology , Environmental Condition and General Test Method , Basic standard and general method on forestry .


工业和信息化部/国家能源局

Professional Standard - Textile

Jilin Provincial Standard of the People's Republic of China

  • DB22/T 2002-2014 Protein Rapid Detector in Milk and Milk Powder
  • DB22/T 294-2020 Method for identification of adulteration of crude protein in corn gluten meal

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

  • GB/T 8856-1988 Method for determination of crude protein in fruit and vegetable products
  • GB/T 17811-1999 Determination of digestibility in animal protein feeds--Pepsin method
  • GB/T 19495.8-2004 Detection of genetically modified plants and derived products-Protein based methods
  • GB/T 14489.2-1993 Method for determination of crude protein in oilseed
  • GB/T 5511-1985 Inspection of grain and oilseeds--Methods for determination of crude protein
  • GB/T 44214-2024 Test method for non-protein content in silk
  • GB/T 17811-2008 Determination of pepsin digestibility in animal protein feeds - Filtration method
  • GB/T 15673-1995 Method for determination of crude protein in edible fungi
  • GB/T 14771-1993 Method for determination of protein content in foods
  • GB/T 5009.5-2003 Determination of protein in foods

Professional Standard - Agriculture

Taiwan Provincial Standard of the People's Republic of China

  • CNS 2770-5-1986 Method of Test for Feeds : Determination of Crude Protein
  • CNS 3449-1988 Methods of Test for Milk and Milk Products: The Quantitive Analysis of Protein
  • CNS 5035-1986 Method of Test for Crude Protein in Food
  • 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 2713-1978 Method for Determining of Digest Protein of Feather Meal

Professional Standard - Medicine

Group Standards of the People's Republic of China

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 3926-2014 Determination of protein content in dairy foods,egg foods and soy foods for export - Coomassie brilliant blue method

National Metrological Technical Specifications of the People's Republic of China

  • JJF 1841-2020 Calibration Specification for Glycohemoglobin Analyzers
  • JJF 2057-2023 Calibration Specification for C-reactive Protein Analyzers
  • JJF 2116-2024 Calibration Specification for Specific Protein Analyzers

Professional Standard - Public Safety Standards

  • GA/T 819-2009 Analytical method of acid dyes on the protein fibers
  • GA/T 52-1993 Quality grading for protein-foam fire extinguishing agent and fluoroprotein-foam fire extinguishing agent

国家市场监督管理总局、中国国家标准化管理委员会

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 34800-2017 Detection method of activity and impurity of proteinase K
  • GB/T 35809-2018 Method for analysis of forestry biomass—Determination of protein content

Hebei Provincial Standard of the People's Republic of China

Japanese Industrial Standards Committee (JISC)

CZ-CSN

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 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl 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 5546:1979 Caseins and caseinates; Determination of pH (Reference method)
  • ISO 5550:2006 Caseins and caseinates - Determination of moisture content (Reference method)
  • ISO 5546:2010|IDF 115:2010 Determination of pH value of casein and caseinate (standard method)
  • ISO 5550:2006|IDF 78:2006 Caseins and caseinates — Determination of moisture content (Reference method)
  • ISO 5546:2010 | IDF 115:2010 Caseins and caseinates — Determination of pH (Reference method)
  • ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
  • 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 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)
  • ISO 5545:2008|IDF 90:2008 Determination of abomasal casein and caseinate ash (reference method)
  • ISO 5550:2006 | IDF 78:2006 Caseins and caseinates — Determination of moisture content (Reference method)
  • ISO 5550:1978 Caseins and caseinates; Determination of water content (Reference method)
  • ISO 5548:1980 Caseins and caseinates; Determination of lactose content; Photometric method

KR-KS

AT-ON

Lithuanian Standards Office

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

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)
  • AS N60:1970 Methods for the sampling and analysis of acid and rennet caseins
  • AS K89:1953 Protein adhesives for plywood

Society of Automotive Engineers (SAE)

Association Francaise de Normalisation

  • NF V04-387:1985 Caseins and caseinates. Determination of protein content (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 V04-221-4*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 V04-384*NF ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method).
  • NF V04-388*NF ISO 5548:2008 Caseins and caseinates - Determination of lactose content - Photometric method.

Spanish Association for Standardization (UNE)

  • UNE 64102:1977 MIXED FEEDS AND RAW MATERIALS. TOTAL PROTEIN (RAW 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 34081:1975 ANALYSIS METHODS FOR CHOCOLATES. MILK PROTEINS.
  • UNE 34400-7:1967 TEST METHODS OF WHEAT FLOUR. PROTEIN DETERMINATION

German Institute for Standardization

  • DIN 10466:2001 Determination of whey protein content in total protein of milk and milk products - Polarographic 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 10470:1999 Determination of whey protein content and casein content in total protein of milk and milk products - Derivative spectroscopic 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 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 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 10472:1996 Determination of casein and whey protein contents of milk and milk products - Electrophoretic method
  • DIN ISO 5546 E:2020-08 Caseins and caseinates - Determination of pH (Reference method)
  • DIN ISO 5546:2020-12 Caseins and caseinates - Determination of pH (Reference method) (ISO 5546:2010)
  • DIN 10470:2011-07 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method

RU-GOST R

  • GOST 10846-1991 Grain and products of its processing. Method for determination of protein
  • GOST 25179-1990 Milk. Methods for determination of protein
  • GOST R 51470-1999 Caseins and caseinates. Method for determination of protein content
  • GOST R 57476-2017 Bird food protein. Specifications
  • GOST 25179-2014 Milk and milk products. Method for determination of protein
  • GOST 25011-1981 Meat and meat products. Methods of protein determination
  • GOST 20264.2-1988 Enzyme preparations. Methods for determination of proteolytic activity
  • GOST 25011-2017 Meat and meat products. Protein determination methods
  • GOST R 51467-1999 Caseins and caseinates. Method for determination of pH
  • GOST 31978-2012 Caseins and caseinates. Method for determination of pH
  • GOST 30131-1996 Oil-cake and ground oil-cake. Determination of moisture, oil and protein by infrared reflectance
  • GOST R 51454-1999 Caseins and caseinates. Method of determination of nitrate and nitrite contents
  • GOST R 57475-2017 Dried egg protein after extraction lysozyme. Specifications
  • GOST R 51464-1999 Caseins and caseinates. Method for determination of water content
  • GOST 33956-2016 Albumine and pastes from albumin. Specifications
  • GOST R 52993-2008 Caseins and caseinates. Determination of moisture content (Reference method)
  • GOST 13496.4-1984 Fodder, mixed fodder and animal feed raw stuff. Methods of nitrogen and crude protein determination
  • GOST 13979.3-1968 Oilcakes oil-meals. Methods of determination of soluble proteins
  • GOST R 51466-1999 Caseins. Method for determination of "fixed ash" mass fraction
  • GOST 13496.4-1993 Fodder, mixed fodder and animal feed raw stuff. Methods of nitrogen and crude protein determination

RO-ASRO

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 2101:2010 Protein-Rich concentrated Nutrient Supplementary foods
  • OS GSO ISO 5546:2015 Caseins and caseinates -- Determination of pH (Reference method)
  • GSO ISO 5546:2015 Caseins and caseinates -- Determination of pH (Reference method)
  • BH GSO ISO 5546:2016 Caseins and caseinates -- Determination of pH (Reference method)
  • GSO OIML R146-3:2021 Protein measuring instruments for cereal grain and oilseeds Part 3: Test report format
  • BH GSO OIML R146-3:2022 Protein measuring instruments for cereal grain and oilseeds Part 3: Test report format
  • GSO 1374:2021 Edible Casein And Caseinates
  • BH GSO 1374:2022 Edible Casein And Caseinates
  • OS GSO ISO 5548:2015 Caseins and caseinates -- Determination of lactose content -- Photometric method
  • OS GSO ISO 5543:2015 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)
  • BH GSO ISO 5543:2016 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)
  • BH GSO OIML R146-1:2022 Protein measuring instruments for cereal grain and oilseeds Part 1: Metrological and technical requirements
  • GSO OIML R146-1:2021 Protein measuring instruments for cereal grain and oilseeds Part 1: Metrological and technical requirements
  • GSO ISO 5550:2015 Caseins and caseinates -- Determination of moisture content (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 21415-4:2007 Wheat and wheat flour - Gluten content - Determination of dry gluten from wet gluten by a rapid drying method
  • BS ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
  • 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 5550:2006 Caseins and caseinates - Determination of moisture content (Reference method)
  • BS ISO 5548:2004 Caseins and caseinates - Determination of lactose content - Photometric methods

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 34400-7:1967 Test methods for wheat flour. Determination of protein.
  • AENOR UNE 77059:2002 Water quality. Determination of aluminum. Colorimetric method with eriochromocyanin R.
  • BS 6248-10:1986 Caseins and caseinates-Method for determination of fat (gravimetric reference method)
  • 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-...
  • AENOR UNE 23053:1971 BLOOD TRANSFUSION. ALBUMIN
  • BS 6248-9:1984 Caseins and caseinates-Method for the determination of scorched particles

IN-BIS

  • IS 9095-1979 Specifications for protein gummies
  • IS 7482-1989 Protein Drinks—Specifications
  • IS 7481-1974 How to measure protein efficiency ratio (PER)
  • 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 8665-1977 Specification for protein fortified bread
  • IS 7219-1973 Methods for determination of protein in food and feed
  • IS 13650-1993 Glass containers for proteinized food
  • IS 7487-1986 Specifications for protein-rich cookies
  • IS 6557-1972 Protein Flakes Specifications Not Food Quality

HU-MSZT

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

CU-NC

American Society for Testing and Materials (ASTM)

  • ASTM D7818-12 Standard Test Method for Enumeration of Proteolytic Bacteria in Fresh (Uncured) Hides and Skins
  • ASTM D6188-17 Standard Test Method for Viscosity of Cellulose by Cuprammonium Ball Fall

CEN - European Committee for Standardization

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

PT-IPQ

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

Danish Standards Foundation

  • DS/ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter

CH-SNV

International Dairy Federation (IDF)

  • IDF 107-2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter