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Database: 365,228(8 Aug 2026)

Methods and principles of protein extraction

Methods and principles of protein extraction, Total:133 items.

The international standard classification for "Methods and principles of protein extraction" includes: Man-made fibres , food products in general , Animal feeding stuffs , Latex and raw rubber .

The Chinese standard classification for "Methods and principles of protein extraction" includes: Basic standard and general method on forestry , Chemical fibre in general , Food sanitation , Basic standards and general methods , Livestock and poultry feed and additive , Medical and foodstuff rubber products .


Fujian Provincial Standard of the People's Republic of China

  • DB35/T 1397-2013 Technical specifications for enzymatic extraction of collagen (gelatin) from fish processing by-products

Group Standards of the People's Republic of China

  • T/FDSA 0050-2024 Method for determination of the bioavailability of oral collagen protein
  • T/ZGKSL 005-2023 Quality requirements and efficacy assessment for recombinant collagen
  • T/ZGKSL 009-2023 Test method for determination of collagen secreted from human cells induced by recombinant collagen
  • T/CAB 0062-2020 Identification of type Ⅲ collagen LC-MS/MS method
  • T/CNMIA 0043-2024 Specification of facial injection techniques for tissue extraction collagen
  • T/ZGKSL 010-2023 Test method for absorption of recombinant collagen through the skin

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

Professional Standard - Chemical Industry

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

Professional Standard - Textile

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

Professional Standard - Agriculture

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

  • GB/T 17811-1999 Determination of digestibility in animal protein feeds--Pepsin method
  • GB/T 14771-1993 Method for determination of protein content in foods
  • GB/T 21870-2008 Medical gloves made from natural rubber latex - Determination of water-extractable protein using the modified Lowry method

未注明发布机构

  • PD ISO/TS 7833:2024 Nanotechnologies — Extraction method of nanomaterials from lung tissue by proteinase K digestion

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

RU-GOST R

Spanish Association for Standardization (UNE)

  • UNE 64102:1977 MIXED FEEDS AND RAW MATERIALS. TOTAL PROTEIN (RAW PROTEIN)
  • UNE 64011:1970 MIXED FEEDS AND RAW MATERIALS. QUANTITATIVE DETERMINATION OF THE 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
  • UNE 64012:1970 MIXED FEEDS AND RAW MATERIALS. QUANTITATIVE DETERMINATION OF RAW PROTEIN. MACROMETHOD.

American Society for Testing and Materials (ASTM)

  • ASTM D8238-18 Standard Test Method for Immunological Assay to Quantify Extractable Guayule Natural Rubber (GNR) Proteins
  • ASTM D8238-24 Standard Test Method for Immunological Assay to Quantify Extractable Guayule Natural Rubber (GNR) Proteins
  • ASTM D5712-05e1 Standard Test Method for Analysis of Aqueous Extractable Protein in Natural Rubber and Its Products Using the Modified Lowry Method
  • ASTM D5712-99e1 Standard Test Method for Analysis of Aqueous Extractable Protein in Natural Rubber and Its Products Using the Modified Lowry Method
  • ASTM D8238-18(2023) Standard Test Method for Immunological Assay to Quantify Extractable Guayule Natural Rubber (GNR) Proteins
  • ASTM D5712-15(2020) Standard Test Method for Analysis of Aqueous Extractable Protein in Latex, Natural Rubber, and Elastomeric Products Using the Modified Lowry Method
  • ASTM D7818-12 Standard Test Method for Enumeration of Proteolytic Bacteria in Fresh (Uncured) Hides and Skins

CZ-CSN

Standard Association of Australia (SAA)

  • AS N60:1970 Methods for the sampling and analysis of acid and rennet caseins
  • 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 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
  • AS 1918:1976 Methods for sampling eggs and egg products

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

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/DTS 7833:2023 Nanotechnologies — Extraction method of nanomaterials from lung tissue by proteinase K digestion
  • ISO/TS 7833:2024 Nanotechnologies — Extraction method of nanomaterials from lung tissue by proteinase K digestion
  • 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 Determination of pH value of casein and caseinate (standard 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 12243:2003/Amd 1:2012 Medical gloves made from natural rubber latex — Determination of water-extractable protein using the modified Lowry method — Amendment 1
  • ISO 23893-3:2013 Water quality - Biochemical and physiological measurements on fish - Part 3: Determination of vitellogenin
  • ISO 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method

Korean Agency for Technology and Standards (KATS)

AT-ON

  • ONORM DIN 10454-1993 Determination of protein content of caseins and caseinates - Reference method

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 M ISO 12243-2017 Medical gloves made from natural rubber latex — Determination of water-extractable protein using the modified Lowry method

SCC

  • BS 1417:1963 Methods for the sampling and analysis of acid casein
  • BS 1416:1962 Methods for the sampling and analysis of rennet casein
  • BS 1416:1953 Methods for the sampling and analysis of rennet casein
  • BS 1416:1948 Methods for the sampling and analysis of rennet casein
  • 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.
  • BS 6248-9:1984 Caseins and caseinates-Method for the determination of scorched particles
  • BS PD ISO/TS 7833:2024 Nanotechnologies. Extraction method of nanomaterials from lung tissue by proteinase K digestion
  • DANSK DS/ISO 23893-3:2013 Water quality - Biochemical and physiological measurements on fish - Part 3: Determination of vitellogenin
  • 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-...
  • BS 6248-10:1986 Caseins and caseinates-Method for determination of fat (gravimetric 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 23893-3:2013 Water quality. Biochemical and physiological measurements on fish. Determination of vitellogenin
  • 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)

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 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 23893-3:2013 Water quality - Biochemical and physiological measurements on fish - Part 3: vitellogenin dosage
  • NF ISO 5550:2007 Caseins and caseinates - Determination of moisture content (reference method)
  • NF T90-336-3*NF ISO 23893-3:2013 Water quality - Biochemical and physiological measurements on fish - Part 3: determination of vitellogenin

IN-BIS

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

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 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 10466:2001 Determination of whey protein content in total protein of milk and milk products - Polarographic method
  • 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 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 E:2020-06 Caseins and caseinates - Determination of moisture content (Reference 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 ISO 5550:2020-12 Caseins and caseinates - Determination of moisture content (Reference method) (ISO 5550:2006)

RO-ASRO

  • STAS 2213/17-1976 SWEETS Determination of total proteinic content and milk proteinic substance content

Danish Standards Foundation

  • DS/ISO 23893-3:2013 Water quality - Biochemical and physiological measurements on fish - Part 3: Determination of vitellogenin

Indonesia Standards

  • SNI 8076-2014 Kolagen kasar dari sisik ikan - Syarat mutu dan pengolahan

GOSTR

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

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)
  • BH GSO ISO 23893-3:2017 Water quality -- Biochemical and physiological measurements on fish -- Part 3: Determination of vitellogenin
  • GSO ISO 23893-3:2015 Water quality -- Biochemical and physiological measurements on fish -- Part 3: Determination of vitellogenin
  • OS GSO ISO 23893-3:2015 Water quality -- Biochemical and physiological measurements on fish -- Part 3: Determination of vitellogenin
  • GSO ISO 12243:2017 Medical gloves made from natural rubber latex -- Determination of water-extractable protein using the modified Lowry method

VN-TCVN

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

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)

CEN - European Committee for Standardization

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