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Database: 365,228(8 Aug 2026)

Methods for Validating Proteins

Methods for Validating Proteins, Total:142 items.

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

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


Professional Standard - Textile

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

Professional Standard - Commodity Inspection

  • SN/T 0800.3-1999 Cereals and feedstuffs for import and export - Method for the determination of crude protein
  • SN/T 0803.9-1999 Oil bearing materials for import and export—Method for the determination of crude protein

Professional Standard - Agriculture

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

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

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 2770-5-1986 Method of Test for Feeds : Determination of Crude Protein
  • 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

Professional Standard - Ministry of Public Security Logo

  • GN 14-1982 Test methods for protein foam fire extinguishing agents and fluoroprotein foam fire extinguishing agents

Jilin Provincial Standard of the People's Republic of China

  • DB22/T 294-2020 Method for identification of adulteration of crude protein in corn gluten meal

Professional Standard - Public Safety Standards

  • GA/T 819-2009 Analytical method of acid dyes on the protein fibers

未注明发布机构

  • DIN ISO 5550 E:2020-06 Caseins and caseinates - Determination of moisture content (Reference method)
  • DIN EN ISO 21572:2004 Food – Methods for the detection of genetically modified organisms and their products – Protein methods
  • 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 EN ISO 21572 Berichtigung 1:2005 Food – Methods for the detection of genetically modified organisms and their products – Protein methods

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

SCC

  • AS 1871.9:1976 List of methods for examination of waters Nitrogen (albuminoid)
  • UNE 34400-7:1967 TEST METHODS OF WHEAT FLOUR. PROTEIN DETERMINATION
  • AENOR UNE 34400-7:1967 Test methods for wheat flour. Determination of protein.
  • 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)
  • AS N60:1970 Methods for the sampling and analysis of acid and rennet caseins
  • 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)
  • BS 6248-9:1984 Caseins and caseinates-Method for the determination of scorched particles
  • BS 6248-10:1986 Caseins and caseinates-Method for determination of fat (gravimetric reference 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-...
  • 12/30228371 DC BS ISO 15625. Protein fibres. Electronic test method for defects and evenness of raw silk

CZ-CSN

Korean Agency for Technology and Standards (KATS)

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
  • JIS K 0607:2000 Proteins -- Glucoseoxydase -- Methods for quantitative analysis
  • JIS K 0602:1992 Methods for quantitative analysis of serum albumin

AT-ON

RU-GOST R

American Society for Testing and Materials (ASTM)

  • ASTM D6188-17 Standard Test Method for Viscosity of Cellulose by Cuprammonium Ball Fall
  • ASTM E1470-92(1998) Standard Test Method for Characterization of Proteins by Electrophoretic Mobility
  • ASTM E1470-92(2006) Standard Test Method for Characterization of Proteins by Electrophoretic Mobility
  • ASTM D7818-12 Standard Test Method for Enumeration of Proteolytic Bacteria in Fresh (Uncured) Hides and Skins
  • ASTM D5712-99 Standard Test Method for the Analysis of Aqueous Extractable Protein in Natural Rubber and Its Products Using the Modified Lowry Method
  • ASTM D8238-18 Standard Test Method for Immunological Assay to Quantify Extractable Guayule Natural Rubber (GNR) Proteins

KR-KS

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 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 Caseins and caseinates - Determination of pH (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)

IN-BIS

  • IS 7481-1974 How to measure protein efficiency ratio (PER)
  • IS 7219-1973 Methods for determination of protein in food and feed
  • IS 2006-1988 Methods for the quantitative chemical analysis of binary mixtures of protein fibers and certain other non-protein fibers
  • IS 11962-1987 Method for determination of ash content in chymosin casein and caseinate (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 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)

GOSTR

  • GOST 34551-2019 Сonfectionery. Method for determination of mass fraction of protein

AENOR

  • UNE 34081:1975 ANALYSIS METHODS FOR CHOCOLATES. MILK PROTEINS.
  • UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).

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 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 2300.1.8.1:1988 Methods of chemical and physical testing for the dairying industry - General methods and principles - Analytical quality assurance of instrumental methods - Protein in milk

ES-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)

GSO

  • GSO 2505:2016 Method of tests for soya protein products
  • OS GSO 2505:2016 Method of tests for soya protein products
  • 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 8968-4:2021 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

German Institute for Standardization

  • 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 10470:2011 Milk and milk products - Determination of whey protein content and casein content in total protein - 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 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 ISO 5550:2020-12 Caseins and caseinates - Determination of moisture content (Reference method) (ISO 5550:2006)
  • DIN ISO 5546:2020-12 Caseins and caseinates - Determination of pH (Reference method) (ISO 5546:2010)

Association Francaise de Normalisation

  • 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 V04-387:1985 Caseins and caseinates. Determination of protein content (reference method).
  • NF ISO 5546:2010 Caseins and caseinates - Determination of pH (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 ISO 5550:2007 Caseins and caseinates - Determination of moisture content (reference method)

RO-ASRO

  • 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

VN-TCVN

  • TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content

IX-FAO

  • CAC/GL 74-2010 Guidelines on performance criteria and validation of methods for detection, identification and quantification of specific dna sequences and specific proteins in foods
  • CAC/GL 74-2010(En) Guidelines for performance standards and validation methods for the detection, identification and quantification of specific DNA sequences and specific proteins in foods

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)

European Committee for Standardization (CEN)

  • EN ISO 21572:2013 Foodstuffs - Molecular biomarker analysis - Protein-based methods
  • EN ISO 21572:2019 Foodstuffs - Molecular biomarker analysis - Immunochemical methods for the detection and quantification of proteins (ISO 21572:2019)

AR-IRAM

CEN - European Committee for Standardization

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