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Total Protein Determination Method

Total Protein Determination Method, Total:497 items.

In the international standard classification, Total Protein Determination Method involves: Milk and milk products, Beverages, Food products in general, Processes in the food industry, Medical sciences and health care facilities in general, Animal feeding stuffs, Analytical chemistry, Products of the chemical industry, Microbiology, Cereals, pulses and derived products, Edible oils and fats. Oilseeds, Tobacco, tobacco products and related equipment, Fruits. Vegetables, Meat, meat products and other animal produce, Organic chemicals, Biology. Botany. Zoology, Tea. Coffee. Cocoa, Laboratory medicine, Sugar. Sugar products. Starch, General methods of tests and analysis for food products, Rubber and plastics products, Raw materials for rubber and plastics, Paint ingredients, Physics. Chemistry, Leather technology, Quality, Medical equipment, Farming and forestry, Fertilizers, Metalliferous minerals, Coals, Hospital equipment, Services.

VN-TCVN, Total Protein Determination Method

TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 4593-1988 Canned foods.Determination of total protein
TCVN 5537-1991 Sweetened condensed milk.Determination of total 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 7871-4-2008 Wheat and wheat ftour.Gluten content.Part 4: Determination of dry gluten from wet gluten by a rapid drying method
TCVN 7774-2007 Milk.Determination of protein content.Amido black dye-binding method (Routine method)
TCVN 7607-2007 Foodstuffs.Methods of analysis for the detection of genetically modified organisms and derived products.Protein based methods
TCVN 5282-1990 Animal feeding stuffs.Method of determination of methionine content
TCVN 4053-1985 Soil.Method for the determination of total potassium

German Institute for Standardization, Total Protein Determination 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 10466:2001-09 Determination of whey protein content in total protein of milk and milk products - Polarographic method
DIN 10472:1996 Determination of casein and whey protein contents of milk and milk products - Electrophoretic method
DIN 10470:2011-07 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
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 Determination of casein content, casein and whey protein contents in total protein of milk and milk products - Casein-phosphorus method
DIN ISO 5546:2020-12 Caseins and caseinates - Determination of pH (Reference method) (ISO 5546:2010)
DIN ISO 5550:2020-12 Caseins and caseinates - Determination of moisture content (Reference method) (ISO 5550:2006)
DIN ISO 5546:2020 Caseins and caseinates - Determination of pH (Reference method) (ISO 5546:2010)
DIN ISO 5544:2020-12 Caseins - Determination of "fixed ash" (Reference method) (ISO 5544:2008)
DIN ISO 5545:2020-12 Rennet caseins and caseinates - Determination of ash (Reference method) (ISO 5545:2008)
DIN ISO 5550:2020 Caseins and caseinates - Determination of moisture content (Reference method) (ISO 5550:2006)
DIN 10450:1983-03 Determination of free acidity of caseins; reference method
DIN ISO 5545:2020 Rennet caseins and caseinates - Determination of ash (Reference method) (ISO 5545:2008)
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 10472:1996-06 Determination of casein and whey protein contents of milk and milk products - Electrophoretic method
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 10470:1999 Determination of whey protein content and casein content in total protein of milk and milk products - Derivative spectroscopic method
DIN 58906-1:2000 Haemostaseology - Determination of fibrinogen concentration - Part 1: Reference measurement procedure for the determination of clottable fibrinogen as described by Clauss
DIN 58931:2021 Haematology - Determination of haemoglobin concentration in blood - Reference method; Text in German and English
DIN 58924:2022 Haemostaseology - Reference method for the determination of the collagen binding acitvity of the VWF; Text in German and English
DIN 58931:2021-09 Haematology - Determination of haemoglobin concentration in blood - Reference method; Text in German and English
DIN 58924:2021 Haemostaseology - Reference method for the determination of the collagen binding acitvity of the VWF; Text in German and English
DIN EN 15948:2020-12 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels; German version EN 15948:2020
DIN 58924:2022-05 Haemostaseology - Reference method for the determination of the collagen binding acitvity of the VWF; Text in German and English
DIN EN ISO 23319:2023-01 Cheese and processed cheese products, caseins and caseinates - Determination of fat content - Gravimetric method (ISO 23319:2022); German version EN ISO 23319:2022
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 EN ISO 23319:2023 Cheese and processed cheese products, caseins and caseinates - Determination of fat content - Gravimetric method (ISO 23319:2022)
DIN 58931:1995 Haematology - Determination of haemoglobin concentration in blood - Reference method
DIN 10454:1983 Determination of protein content of caseins and caseinates; reference method
DIN 58931:2010 Haematology - Determination of haemoglobin concentration in blood - Reference method; Text in German and English
DIN EN ISO 20483:2014-03 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2013); German version EN ISO 20483:2013
DIN EN ISO 21572:2020-02 Foodstuffs - Molecular biomarker analysis - Immunochemical methods for the detection and quantification of proteins (ISO 21572:2019); German version EN ISO 21572:2019
DIN EN ISO 21572:2020 Foodstuffs - Molecular biomarker analysis - Immunochemical methods for the detection and quantification of proteins (ISO 21572:2019)
DIN EN ISO 5983-1 Berichtigung 1:2009-07 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005); German version EN ISO 5983-1:2005, Corrigendum to DIN EN ISO 5983-1:2005-10; German version EN ISO 5983-1:20...
DIN EN ISO 5983-1:2005-10 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005); German version EN ISO 5983-1:2005

RU-GOST R, Total Protein Determination Method

GOST R 51470-1999 Caseins and caseinates. Method for determination of protein content
GOST R 51467-1999 Caseins and caseinates. Method for determination of pH
GOST R 51464-1999 Caseins and caseinates. Method for determination of water content
GOST 31978-2012 Caseins and caseinates. Method for determination of pH
GOST 25179-1990 Milk. Methods for determination of protein
GOST R 51468-1999 Caseins. Method for determination of free acidity
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 52993-2008 Caseins and caseinates. Determination of moisture content (Reference method)
GOST R 53974-2010 Enzyme preparations for food industry. Method for determination of proteolitic activity
GOST R 51469-1999 Caseins and caseinates. Photometric method for determination of lactose content
GOST 25011-1981 Meat and meat products. Methods of protein determination
GOST 25011-2017 Meat and meat products. Protein determination methods
GOST R 51466-1999 Caseins. Method for determination of "fixed ash" mass fraction
GOST 13979.3-1968 Oilcakes oil-meals. Methods of determination of soluble proteins
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 23327-1978 Milk. Methods for determination of the total protein content
GOST R 51454-1999 Caseins and caseinates. Method of determination of nitrate and nitrite contents
GOST 30648.2-1999 Infant milk products. Methods for determination of total protein
GOST 28074-1989 Vegetable fodder. Method for the determination of crude protein solubility
GOST 28075-1989 Vegetable fodder. Method for the determination of crude protein splitting
GOST R 54478-2011 Grain. Methods of determination quantity and quality of gluten in wheat
GOST R 53220-2008 Meat and meat products. Electrophoretic method of determination of soy proteins
GOST R 53020-2008 Wheat and wheat flour. Determination of gluten content. Part 1. Manual method
GOST 13496.4-1993 Fodder, mixed fodder and animal feed raw stuff. Methods of nitrogen and crude protein determination
GOST 31475-2012 Meat and meat products. Electrophoretic method of determination of soy proteins
GOST 13496.4-1984 Fodder, mixed fodder and animal feed raw stuff. Methods of nitrogen and crude protein determination
GOST 33600-2015 Milk and dairy products. Method for determination of the lactoferrin by high performance liquid chromatography
GOST 31477-2012 Meat and meat products. Immune method of determination of animal (pork, beef, mutton) proteins
GOST R 50466-1993 Fodder, mixed fodder and animal feed raw stuff. Methods of nitrogen and crude protein determination
GOST R 52421-2005 Fish, marine products and products of them. Method of determining the fraction of total mass of protein, fat, water, phosphorus, calcium and ash by the near-infra-red spectrometry
GOST R 53862-2010 Mixed feeds, protein-vitamin-mineral concentrates. Method for determination of the oxiacids
GOST R 51423-1999 Feedstuffs, compound feeds, feed raw materials. Method for determination of soluble nitrogen fraction of total mass after treatment with pepsin in dilute hydrochloric acid
GOST R 53213-2008 Meat and meat products. Histological method of identification of plant protein additives
GOST R 53011-2008 Mixed feeds, protein-vitamin-mineral concentrates, premixes. Methods for determination of metallomagnetic impurity
GOST R ISO 7514-2012 Method for determination of total ash
GOST 32150-2013 Food eggs and foodstuffs of processed poultry eggs. Method for determination of fatty acid composition
GOST R 53951-2010 Milk and milk-containing products. Determination of mass part of protein by Kjeldahl method
GOST ISO/TS 17837-2013 Processed cheese products. Determination of nitrogen content and crude protein calculation. Kjeldahl method
GOST 31795-2012 Fish, marine products and products of them. Method of determining the fraction of total mass of protein, fat, water, phosphorus, calcium and ash by the near-infra-red spectrometry
GOST ISO 1575-2013 Tea. Method for determination of total ash
GOST R 53514-2009 Meat and meat products. Immune method of determination of animal (pork, beef, mutton) proteins
GOST 14352-1973 Cognac spirits. Method for determination of furfural
GOST 31484-2012 Mixed feeds, protein-vitamin-mineral concentrates, premixes. Methods for determination of metallomagnetic impurity
GOST R ISO 16634-1-2011 Food products. Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content. Part 1. Oilseeds and animal feeding stuffs
GOST R 55800-2013 Starch. Method of determination total ash
GOST 14138-1976 Cognac and cognac spirits. Method for determination of higher alcohols
GOST 29113-1991 Mixed fooders, feeds protein and vitamin supplements, carbamide concentrate. Methods of determining carbamide mass portion
GOST R 54607.7-2016 Public catering services. Methods of laboratory quality control of products catering. Part 7. Determination of protein by the Kjeldahl method

AENOR, Total Protein Determination Method

UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
UNE 64012:1970 MIXED FEEDS AND RAW MATERIALS. QUANTITATIVE DETERMINATION OF RAW PROTEIN. MACROMETHOD.
UNE 32008:1995 COAL. DETERMINATION OF TOTAL SULPHUR. ESCHKA METHOD.
UNE-EN ISO 20483:2014 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2013)
UNE 33113:1975 TEST METHODS OF ALCOHOLIC BEVERAGES. DETERMINATION OF SUGAR REDUCERS AND TOTAL SUGARS IN BRANDIES, RUMS AND WHISKIES.

AT-ON, Total Protein Determination Method

ONORM DIN 10454-1993 Determination of protein content of caseins and caseinates - Reference method
ONORM DIN 10456-1993 Determination of pH of caseins and caseinates - Reference method
ONORM DIN 10453-1993 Determination of water content of caseins and caseinates - Reference method
ONORM S 1812-1982 Testing ojtextiles; quantitative analysis oj binary mixtures; casein fihres with other jibres; trypsin method
OENORM EN 15948-2020 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels
ONORM DIN 10334-1994 Determination of nitrogen content of milk according to Kjeldahl and calculation of crude protein content

CZ-CSN, Total Protein Determination Method

CSN 57 0111-12-2002 Testing methods for casein and caseinates - Determination of pH
CSN 57 0111-3-2002 Testing methods for casein and caseinates - Determination of moisture
CSN 57 0111-7-2002 Testing methods for casein and caseinates - Determination of ash
CSN 57 0111-8-2002 Testing methods for casein and caseinates - Determination of titratable acidity
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 0111 Cast.6-1985 Testing methods for casein. Determination of lactose
CSN 57 0111 Cast.10-1979 Testing methods for casein. Determination of purity
CSN 57 0111 Cast.11-1979 Testing methods for casein. Determination of colour
CSN 57 0111 Cast.4-1979 Testing methods for asein. Determination f fat content
CSN 57 0111-2-2002 Testing methods for casein and caseinates - Methods of samphng of Chemical analysis
CSN 57 0111-1-2002 Testing methods for casein and caseinates - General regulations
CSN 57 0111 Cast.9-1979 Testing methods for casein. Determination of solubility index
CSN 56 0186 Cast.12-1981 Testing methods for beer. art 12. etermination of proteins
CSN 46 7092-27-1998 Testing methods for feeding stuffs - Part 27: Determination of the protein content
CSN 46 7092-4-1998 Testing methods for feeding stuffs - Part 4: Determination of crude protein content
CSN 570111-3-2002 Testing methods for casein and caseinates - Determination of moisture
CSN 570111-7-2002 Testing methods for casein and caseinates - Determination of ash
CSN 570111-8-2002 Testing methods for casein and caseinates - Determination of titratable acidity
CSN 57 0105 Cast.5-1984 Powdered and condensed milk products. Testing methods. Determination of protein content
CSN 57 0153-1986 Testing methods for meat products and sterilized food in preserves. Determination of protein content according to Kjeldahl
CSN 56 0210 Cast.6-1985 Testing methods of alcoholic beverages. Determination of acids in wine distillate and brandy
CSN 58 0170 Cast.6-1981 Method of test for mayonnaise. Part 06. Determination of titratable acids
CSN 46 7092-5-1998 Testing methods for feeding stuffs - Part 5: Determination of soluble nitrogen content after treatment with pepsin in hydrochloric acid solution
CSN 46 7092-86-1998 Testing methods for feeding stuffs - Part 86: Determination of methionine content
CSN 58 0170 Cast.5-1981 Method of test for mayonnaise. Part 05. Determination of fat content

CEN - European Committee for Standardization, Total Protein Determination Method

EN ISO 8968-4:2001 Milk - Determination of Nitrogen Content - Part 4: Determination of Non-Protein Nitrogen Content
PREN 15948-2018 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels

International Organization for Standardization (ISO), Total Protein Determination 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)
ISO 5549:1978 Caseins and caseinates; Determination of protein content (Reference method)
ISO 5546:1979 Caseins and caseinates; Determination of pH (Reference method)
ISO 5550:2006 Caseins and caseinates - Determination of moisture content (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 5547:2008 | IDF 91:2008 Caseins — Determination of free acidity (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 5548:1980 Caseins and caseinates; Determination of lactose content; Photometric method
ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)
ISO 5550:2006 | IDF 78:2006 Caseins and caseinates — Determination of moisture content (Reference method)
ISO 5548:2004 | IDF 106:2004 Caseins and caseinates — Determination of lactose content — Photometric method
ISO 5545:2008|IDF 90:2008 Determination of abomasal casein and caseinate ash (reference method)
ISO 5543:2004 | IDF 127:2004 Caseins and caseinates — Determination of fat content — Gravimetric method (Reference method)
ISO 5545:2008 | IDF 90:2008 Rennet caseins and caseinates — Determination of ash (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 5544:2008 Caseins - Determination of " fixed ash " (Reference method)
ISO 5544:1978 Caseins; Determination of " fixed ash " (Reference method)
ISO 5544:2008 | IDF 89:2008 Caseins — Determination of " fixed ash " (Reference method)
ISO 5544:2008|IDF 89:2008 Determination of "fixed ash" of casein (reference method)
ISO 5543:2004 Caseins and caseinates - Determination of fat content - Gravimetric method (Reference method)
ISO 5543:1986 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 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 5547:2008 Caseins - Determination of free acidity (Reference method)
ISO 5547:2008|IDF 91:2008 Caseins — Determination of free acidity (Reference method)
ISO 5547:1978 Caseins; Determination of free acidity (Reference method)
ISO 8195:1987 Caseins and caseinates; Determination of nitrate and nitrite contents; Method by cadmium reduction and spectrometry
ISO 21415-4:2006 Wheat and wheat flour - Gluten content - Part 4: Determination of dry gluten from wet gluten by a rapid drying method
ISO 21415-3:2006 Wheat and wheat flour - Gluten content - Part 3: Determination of dry gluten from wet gluten by an oven drying method
ISO 23319:2022 | IDF 250 Cheese and processed cheese products, caseins and caseinates — Determination of fat content — Gravimetric method
ISO 23319:2022 | IDF 250:2022 Cheese and processed cheese products, caseins and caseinates — Determination of fat content — Gravimetric method
ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates — Determination of fat content — Gravimetric method
ISO 5542:1984 Milk; Determination of protein content; Amido black dye-binding method (Routine method)
ISO 17997-2:2004 Milk - Determination of casein-nitrogen content - Part 2: Direct method
ISO 17997-2:2004 | IDF 29-2:2004 Milk — Determination of casein-nitrogen content — Part 2: Direct method
ISO 17997-2:2004|IDF 029-2:2004 Bovine Casein - Determination of Nitrogen Content Part 2: Direct Method
ISO 5545:1978 Rennet caseins and caseinates; Determination of ash (Reference method)
ISO 17997-1:2004 Milk - Determination of casein-nitrogen content - Part 1: Indirect method (Reference method)
ISO 17997-1:2004 | IDF 29-1:2004 Milk — Determination of casein-nitrogen content — Part 1: Indirect method (Reference method)
ISO 17997-1:2004|IDF 029-1:2004 Bovine casein - Determination of nitrogen content Part 1: Indirect method (reference method)
ISO 21572:2004 Foodstuffs - Methods for the detection of genetically modified organisms and derived products - Protein based methods
ISO 21572:2013 Foodstuffs - Molecular biomarker analysis - Protein-based methods
ISO 20483:2013 Cereals and pulses.Determination of the nitrogen content and calculation of the crude protein content.Kjeldahl method
ISO 12243:2003 Medical gloves made from natural rubber latex - Determination of water-extractable protein using the modified Lowry method
ISO 13875:2005 | IDF 178:2005 Liquid milk — Determination of acid-soluble beta-lactoglobulin content — Reverse-phase HPLC method

Korean Agency for Technology and Standards (KATS), Total Protein Determination Method

KS H ISO 5546:2006 Caseins and caseinates－Determination of pH(Reference method)
KS H ISO 5549:2006 Caseins and caseinates－Determination of protein content(Reference method)
KS H ISO 5549-2006(2016) Caseins and caseinates－Determination of protein content(Reference method)
KS H ISO 5549:2021 Caseins and caseinates — Determination of protein content(Reference method)
KS H 1204-2012 Testing method for crude proteins content
KS H 1204-2001 Testing method for crude proteins content
KS J 4201-2008 Methods for quantitative analysis of serum albumin
KS H ISO 5546-2006(2016) Caseins and caseinates－Determination of pH(Reference method)
KS H ISO 5546:2021 Caseins and caseinates — Determination of pH(Reference method)
KS H ISO 5550-2007(2021) Caseins and caseinates－Determination of moisture content(Reference method)
KS H ISO 5550:2007 Caseins and caseinates－Determination of moisture content(Reference method)
KS H ISO 5548:2006 Caseins and caseinates－Determination of lactose content－Photometric method
KS H ISO 5545:2006 Rennet caseins and caseinates－Determination of ash(Reference method)
KS H ISO 5550-2007(2012) Caseins and caseinates－Determination of moisture content(Reference method)
KS H ISO 5548:2020 Caseins and caseinates－Determination of lactose content－Photometric method
KS H ISO 5543-2006(2016) Caseins and caseinates－Determination of fat content－Gravimetric method(Reference method)
KS H ISO 5545:2021 Rennet caseins and caseinates —Determination of ash(Reference method)
KS H ISO 5545-2006(2016) Rennet caseins and caseinates－Determination of ash(Reference method)
KS H 1204-2021 Testing method for crude proteins content
KS J 4202-2008 Methods for quantitative analysis of immunoglobulin
KS H ISO 5544:2006 Caseins－Determination of “fixed ash”(Reference method)
KS H ISO 5544:2021 Caseins — Determination of “fixed ash”(Reference method)
KS H ISO 5544-2006(2016) Caseins－Determination of “fixed ash”(Reference method)
KS H ISO 5543:2006 Caseins and caseinates－Determination of fat content－Gravimetric method(Reference method)
KS H ISO 5543:2021 Caseins and caseinates — Determination of fat content — Gravimetric method(Reference method)
KS J 4205-2018 Methods for quantitative analysis of immobilized trypsin
KS J 4205-2008 Methods for quantitative analysis of immobilized trypsin
KS H ISO 5547:2006 Caseins－Determination of free acidity(Reference method)
KS H ISO 5547:2021 Caseins — Determination of free acidity(Reference method)
KS H ISO 5547-2006(2016) Caseins－Determination of free acidity(Reference method)
KS J 4203-2008 Methods for quantitative analysis of monoclonal IgG
KS H ISO 8195:2001 Caseins and caseinates－Determination of nitrate and nitrite contents－Method by cadmium reduction and spectrometry
KS H ISO 8195:2006 Caseins and caseinates－Determination of nitrate and nitrite contents－Method by cadmium reduction and spectrometry
KS H ISO 5542:2006 Milk－Determination of protein content－Amido black dye-binding method(Rountine method)
KS H ISO 5542:2021 Milk — Determination of protein content — Amido black dye-binding method(Rountine method)
KS H ISO 5542-2006(2016) Milk－Determination of protein content－Amido black dye-binding method(Rountine method)
KS J ISO 21572:2009 Foodstuffs-Methods for the detection of genetically modified organisms and derived products-Protein based methods
KS J ISO 21572-2009(2019) Foodstuffs－Methods for the detection of genetically modified organisms and derived products－Protein based methods
KS P 1015-2012 Establishment of a reference material and evaluation method for troponin-based cardiovascular diagnostics
KS M ISO 12243:2007 Medical gloves made from natural rubber latex－Determination of water-extractable protein using the modified Lowry method
KS M ISO 12243-2017(2022) Medical gloves made from natural rubber latex — Determination of water-extractable protein using the modified Lowry method
KS M ISO 12243:2017 Medical gloves made from natural rubber latex — Determination of water-extractable protein using the modified Lowry method

British Standards Institution (BSI), Total Protein Determination Method

BS ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
BS ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)
BS ISO 5544:2008 Caseins - Determination of "fixed ash" (Reference method)
BS ISO 5550:2006 Caseins and caseinates - Determination of moisture content (Reference method)
BS ISO 5547:2008 Caseins - Determination of free acidity (Reference method)
BS 6248-11:1987 Caseins and caseinates. Method for determination of nitrate and nitrite contents
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 21415-4:2007 Wheat and wheat flour - Gluten content - Determination of dry gluten from wet gluten by a rapid drying method
BS ISO 5548:2004 Caseins and caseinates - Determination of lactose content - Photometric methods
BS ISO 17997-2:2005 Milk - Determination of casein-nitrogen content - Direct 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 5543:2004 Caseins and caseinates - Determination of fat content - Gravimetric method (reference method)
BS ISO 17997-1:2005 Milk - Determination of casein-nitrogen content - Indirect method (Reference method)
BS ISO 17997-2:2004 Milk. Determination of casein-nitrogen content - Direct method
BS ISO 17997-1:2004 Milk. Determination of casein-nitrogen content - Indirect method (Reference method)
20/30376375 DC BS ISO 23319. Cheese and processed cheese products, caseins and caseinates. Determination of fat content. Gravimetric method
BS EN ISO 23319:2022 Tracked Changes. Cheese and processed cheese products, caseins and caseinates. Determination of fat content. Gravimetric method
BS EN 15948:2012 Cereals. Determination of moisture and protein. Method using Near-Infrared- Spectroscopy in whole kernels
BS EN 15948:2015 Cereals. Determination of moisture and protein. Method using Near-Infrared-Spectroscopy in whole kernels
BS 6248-7:1982 Caseins and caseinates - Method for determination of protein content (reference method)
BS EN 15948:2020 Cereals. Determination of moisture and protein. Method using Near-Infrared Spectroscopy in whole kernels
BS 4317-12:1980 Methods of test for cereals and pulses - Determination of wet gluten in wheat flour
18/30374728 DC BS EN 15948. Cereals. Determination of moisture and protein. Method using Near-Infrared-Spectroscopy in whole kernels
BS 4317-16:1981 Methods of test for cereals and pulses - Determination of dry gluten in wheat flour
BS 5766-15:1997 Methods for analysis of animal feeding stuffs. Determination of soluble nitrogen content after treatment with pepsin in dilute hydrochloric acid
BS 4317-19:1990 Methods of test for cereals and pulses - Determination of protein quality of wheat by the sodium dodecyl sulphate (SDS) test
BS EN ISO 21572:2019 Foodstuffs. Molecular biomarker analysis. Immunochemical methods for the detection and quantification of proteins
BS 1741 Sec.6.1:1990 Methods for chemical analysis of liquid milk and cream. Determination of casein nitrogen content of liquid milk. Reference method
BS 1741 Sec.6.2:1990 Methods for chemical analysis of liquid milk and cream. Determination of casein nitrogen content of liquid milk. Routine method
BS EN ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Kjeldahl method
BS EN ISO 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
BS EN ISO 20483:2013 Cereals and pulses. Determination of the nitrogen content and calculation of the crude protein content. Kjeldahl method
BS ISO 12243:2003+A1:2012 Medical gloves made from natural rubber latex. Determination of water-extractable protein using the modified Lowry method
BS EN ISO 16634-1:2008 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 1: Oilseeds and animal feeding stuffs
BS 1741-6.1:1990 Methods for chemical analysis of liquid milk and cream - Determination of casein nitrogen content of liquid milk - Reference method
BS 1741-6.2:1990 Methods for chemical analysis of liquid milk and cream - Determination of casein nitrogen content of liquid milk - Routine method

Association Francaise de Normalisation, Total Protein Determination Method

NF ISO 5546:2010 Caséines et caséinates - Détermination du pH (Méthode de référence)
NF ISO 5550:2007 Caséines et caséinates - Détermination de la teneur en humidité (méthode de référence)
NF ISO 5545:2008 Caséines présure et caséinates - Détermination des cendres (Méthode de référence)
NF ISO 5544:2008 Caséines - Détermination des "cendres fixes" (Méthode de référence)
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.
NF ISO 5547:2008 Caséines - Détermination de l'acidité libre (Méthode de référence)
NF V04-387:1985 Caseins and caseinates. Determination of protein content (reference method).
NF ISO 5548:2008 Caséines et caséinates - Détermination de la teneur en lactose - Méthode photométrique
NF V04-382:1988 Caseins and caseinates. Determination of fat content. Gravimetric method (reference method).
NF V04-382:2008 Caseins and caseinates - Determination of fat content - Gravimetric method (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 V04-391*NF ISO 5544:2008 Caseins - Determination of "fixed ash" (Reference method)
NF V04-391:1985 Caseins. Determination of "fixes ash" (reference method).
NF V04-386*NF ISO 5547:2008 Caseins - Determination of free acidity (Reference method)
NF V04-386:1985 Caseins. Determination of free acidity (reference method).
NF EN ISO 8968-4:2016 Lait et produits laitiers - Détermination de la teneur en azote - Partie 4 : détermination de la teneur en azote protéique et non protéique et calcul de la teneur en protéines vraies (Méthode de référence)
NF V04-390:1988 Caseins and caseinates. Determination of nitrate and nitrite contents. Method by cadmium reduction and spectrometry.
NF EN ISO 23319:2022 Fromages et fromages fondus, caséines et caséinates - Détermination de la teneur en matière grasse - Méthode gravimétrique
NF V04-558*NF EN ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates - Determination of fat content - Gravimetric method
NF V04-385*NF ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method).
NF V04-385:1985 Caseins and caseinates. Determination of pH (reference method).
NF V04-383*NF ISO 5550:2007 Caseins and caseinates - Determination of moisture content - (Reference method).
NF V04-383:1985 Caseins and caseinates. Determination of water content (reference method).
NF V04-216:1985 Milk. Determination of protein content. Amido black dye-binding method (routine method).
NF V04-388:1985 Caseins and caseinates. Determination of lactose content. Photometric method.
NF V04-384:1985 Rennet caseins and caseinates. Determination of ash (reference method).
NF V04-216:2011 Milk - Determination of protein content - Amido black dye-binding method (routine method).
NF EN ISO 21572:2019 Produits alimentaires - Analyse des biomarqueurs moléculaires - Méthodes immunochimiques pour la détection et la quantification des protéines
NF EN ISO 20483:2014 Céréales et légumineuses - Détermination de la teneur en azote et calcul de la teneur en protéines brutes - Méthode de Kjeldahl
NF V03-768:2012 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels.
NF V03-768:2015 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels
NF V03-768*NF EN 15948:2020 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels
NF EN 15948:2020 Céréales - Détermination de la teneur en eau et en protéines - Méthode utilisant la spectroscopie dans le proche infrarouge sur des grains entiers
NF V03-750:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method.
NF V04-363:1985 Dried milk - Determination of the quantity of instant powder milk in animal feeding stuffs - Method of enzymatic coagulation of paracasein
NF V03-750*NF EN ISO 20483:2014 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
NF EN ISO 5983-1:2005 Aliments des animaux - Détermination de la teneur en azote et calcul de la teneur en protéines brutes - Partie 1 : méthode Kjeldahl
NF EN ISO 8968-1:2014 Lait et produits laitiers - Détermination de la teneur en azote - Partie 1 : méthode Kjeldahl et calcul de la teneur en protéines brutes

RO-ASRO, Total Protein Determination Method

STAS 2213/17-1976 SWEETS Determination of total proteinic content and milk proteinic substance content
STAS 9065/4-1981 MEAT AND MEAT PRODUCTS Determination of total proteins
SR 5546-1997 Caseins and caseinates - Determination of pH (Reference method)
STAS SR 13348-1-1996 Tea. Analysis methods. Determination of proteic nitrogen by the Kjeldahl method. Spectrophotometric method
SR ISO 5545:1996 Rennet caseins and caseinates - Determination of ash (Reference method)
SR ISO 5549:1996 Caseins and caseinates - Determination of protein content (Reference method)
SR ISO 589:1981 Hard coal. Determination of tqtal moisture

International Dairy Federation (IDF), Total Protein Determination Method

IDF 90-2008 Rennet caseins and caseinates - Determination of ash (Reference method)
IDF 78-2006 Caseins and caseinates. Determination of moisture content (Reference method)
IDF 89-2008 Caseins - Determination of "fixed ash" (Reference method)
IDF 91-2008 Caseins - Determination of free acidity (Reference method)
IDF 178-2005 Liquid milk - Determination of acid-soluble β-lactoglobulin content - Reverse-phase HPLC method
IDF/RM 25-2008 Milk and milk products - Determination of nitrogen content and crude protein calculation - Kjeldahl method

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Total Protein Determination Method

GB/T 14771-1993 Method for determination of protein content in foods
GB/T 6432-1994 Method for the determination of crude protein in feedstuffs
GB/T 17811-1999 Determination of digestibility in animal protein feeds--Pepsin method
GB/T 14489.2-1993 Method for determination of crude protein oilseed
GB/T 8856-1988 Method for determination of crude protein in fruit and vegetable products
GB/T 15673-1995 Method for determination of crude protein in edible fungi
GB/T 17811-2008 Determination of pepsin digestibility in animal protein feeds.Filtration method
GB/T 21318-2009 Determination of total nirogen content in animal feeding stuffs by combustion according to the Dumas principle and calculation o the crude protein content
GB/T 24318-2009 Determination of total nitrogen content in animal feeding stuffs by combustion according to the Dumas principle and calculation of the crude protein content
GB/T 5413.1-1997 Milk powder and formula foods for infant and young children--Determination of protein
GB/T 5413.2-1997 Milk powder and formula foods for infant and young children--Determination of whey protein
GB/T 21033-2007 Determination of immunoglobulin in feeds.High-performance liquid chromatogaphy
GB/T 9338-1988 Method of instrumental measurement of whiteness of fluorescent whitening agents
GB/T 21870-2008 Medical gloves made from natural rubber latex.Determination of water-extractable protein using the modified lowry method
GB/T 24870-2010 Inspection of grain and oils-Crude protein and crude fat determination in soybean-Near-infrared method
GB/T 28715-2012 Determination of acidic and neutral protease activity in feed additives.Spetrophotometric method
GB/T 2441.1-2001 Determination of urea-Determination of total nitrogen content
GB/T 12456-1990 Method for determination of total acid in foods
GB/T 23869-2009 Method for determination of the total mercury in pollen

Professional Standard - Agriculture, Total Protein Determination Method

GB/T 5009.5-1985 Determination method of protein in food
GB 8856-1988 Method for Determination of Crude Protein in Fruit and Vegetable Products
NY/T 2659-2014 Rapid determination of fat,protein,lactose and total solids in milk.Infrared spectrometry
NY/T 1678-2008 Determination of protein in milk and dairy products biuret spectrophotometry method
NY/T 2007-2011 Determination of the crude protein content in cereal and pules seeds by combustion according to the dumas principle
NY/T 4306-2023 Determination of activity of papaya and bromelain by ultraviolet spectrophotometry
NY/T 4362-2023 Determination of Feed Additive Keratinase Activity Spectrophotometric Method
NY/T 2070-2011 Determination of immunoglobulin G in bovine colostrum and its products.Spectrophotometry
GB/T 22260-2023 Determination of Anabolic Hormones in Feed by Liquid Chromatography-Tandem Mass Spectrometry
NY 146.17-1988 Determination method for total phosphorus in fruit juice
NY 146.8-1988 Method for Determination of Fruit Juice Determination of Total Ash
SN/T 1690.1-2012 New analytical methods for textile fiber composition - Part 1: Determination of soybean protein composite fiber content by nitric acid method
NY/T 1663-2008 Determination of β-lactoglobulin content in milk and dairy products SDS-PAGE electrophoresis
GB/T 5009.11-1996 Determination method of total arsenic in food
GB/T 5009.17-1996 Determination method of total mercury in food

KR-KS, Total Protein Determination Method

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 5546-2021 Caseins and caseinates — Determination of pH(Reference method)
KS H ISO 5548-2020 Caseins and caseinates－Determination of lactose content－Photometric method
KS H ISO 5545-2021 Rennet caseins and caseinates —Determination of ash(Reference method)
KS H ISO 5544-2021 Caseins — Determination of “fixed ash”(Reference method)
KS H ISO 5543-2021 Caseins and caseinates — Determination of fat content — Gravimetric method(Reference method)
KS H ISO 5547-2021 Caseins — Determination of free acidity(Reference method)
KS H ISO 8195-2001 Caseins and caseinates－Determination of nitrate and nitrite contents－Method by cadmium reduction and spectrometry
KS H ISO 5542-2021 Milk — Determination of protein content — Amido black dye-binding method(Rountine method)

IN-BIS, Total Protein Determination Method

European Committee for Standardization (CEN), Total Protein Determination Method

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)
EN ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates - Determination of fat content - Gravimetric method (ISO 23319:2022)
EN 15948:2015 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels
EN 15948:2012 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels
EN ISO 20483:2013 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method

NL-NEN, Total Protein Determination Method

NEN 3145-1966 Feeding stuffs. Methodsof analysis. Determination of crude protein
NEN 3760-1984 Cheese - Determination of the nitrogen content according to Kjeldahl - Calculation of the crude protein content
NEN 3198-1984 Milk, evaporated milk and dried milk - Determination of the nitrogen content according to Kjeldahl - Calculation of the crude protein content (reference method)

Professional Standard - Hygiene , Total Protein Determination Method

WS/T 341-2011 Reference method for haemoglobinometry in human blood
WS 341-2011 Reference method for hemoglobin determination
WS/T 42-1996 Blood.Determination of carboxyhemoglobin.Spectrophotometric method

National Health Commission of the People's Republic of China, Total Protein Determination Method

WST 341:2011 Hemoglobin measurement reference method

American Society for Testing and Materials (ASTM), Total Protein Determination Method

ASTM D3048-89(1995)e1 Standard Test Method of Assay for Alkaline Protease
ASTM D3048-89(2009) Standard Test Method of Assay for Alkaline Protease
ASTM D3048-89(2016) Standard Test Method of Assay for Alkaline Protease
ASTM D7818-12 Standard Test Method for Enumeration of Proteolytic Bacteria in Fresh (Uncured) Hides and Skins
ASTM D8238-18(2023) Standard Test Method for Immunological Assay to Quantify Extractable Guayule Natural Rubber (GNR) Proteins
ASTM D8238-18 Standard Test Method for Immunological Assay to Quantify Extractable Guayule Natural Rubber (GNR) Proteins
ASTM D5712-10 Standard Test Method for Analysis of Aqueous Extractable Protein in Natural Rubber and Its Products Using the Modified Lowry Method
ASTM E1759-95 Standard Test Method for Isoaspartic Acid in Proteins Method for the Determination of Asparagine Deamidation Products
ASTM E1759-95(2003) Standard Test Method for Isoaspartic Acid in Proteins: Method for the Determination of Asparagine Deamidation Products
ASTM D6716-08(2020) Standard Test Method for Total Ash in Wet Blue or Wet White
ASTM D6499-18(2023) Standard Test Method for Immunological Measurement of Antigenic Protein in Hevea Natural Rubber (HNR) and its Products
ASTM D6499-18 Standard Test Method for Immunological Measurement of Antigenic Protein in Hevea Natural Rubber (HNR) and its Products
ASTM D6499-16 Standard Test Method for The Immunological Measurement of Antigenic Protein in Natural Rubber and its Products
ASTM D6499-12 Standard Test Method for The Immunological Measurement of Antigenic Protein in Natural Rubber and its Products
ASTM D6499-00 Standard Test Method for the Immunological Measurement of Antigenic Protein in Natural Rubber and its Products
ASTM D6499-03 Standard Test Method for the Immunological Measurement of Antigenic Protein in Natural Rubber and its Products

Heilongjiang Provincial Standard of the People's Republic of China, Total Protein Determination Method

DB23/T 1686-2016 Determination method of metallothionein in plants

Lithuanian Standards Office , Total Protein Determination Method

LST ISO 5549:2001 Caseins and caseinates. Determination of protein content (Reference method) (identical ISO 5549:1978)
LST ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method) ( ISO 5546:2010, identical)
LST ISO 5543:2004 Caseins and caseinates. Determination of fat content. Gravimetric method (Reference method) (idt ISO 5543:2004)
LST ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method) (ISO 5545:2008, identical)
LST ISO 5548:2004 Caseins and caseinates. Determination of lactose content. Photometric method (idt ISO 5548:2004)
LST ISO 5547:2008 Caseins - Determination of free acidity (Reference method) (ISO 5547:2008, identical)
LST EN 15948-2012 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels
LST EN 15948-2021 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels
LST EN ISO 21572:2004 Foodstuffs - Methods for the detection of genetically modified organisms and derived products - Protein based methods (ISO 21572:2004)
LST EN ISO 21572:2004/AC:2005 Foodstuffs - Methods for the detection of genetically modified organisms and derived products - Protein based methods (ISO 21572:2004)
LST EN ISO 20483:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2006)

Group Standards of the People's Republic of China, Total Protein Determination Method

T/ZGKSL 009-2023 Test method for determination of collagen secreted from human cells induced by recombinant collagen
T/TDSTIA 026-2022 Determination of α-lactalbumin and β-lactoglobulin in infant formula milk powder—Gel permeation chromatography
T/ZGKSL 010-2023 Test method for absorption of recombinant collagen through the skin
T/NAIA 060-2021 Determination of true protein in feed Kjeldahl method
T/CSIQ 77001-2020 Determination of α-Lactalbumin contents in dairy products— HPLC method
T/TDSTIA 002-2021 Determination of α-lactalbumin in milk and milk products by high performance liquid chromatography
T/CIFST 006-2021 Detection of lactoferrin in foods —— enzyme-linked immunosorbent assay method
T/TDSTIA 006-2019 Determination of lactoferrin in milk and milk products by liquid chromatography
T/AHPCA 047-2023 Method for testing the anti-wrinkle and firming efficacy of cosmetics (elastase inhibition rapid assay)
T/TDSTIA 007-2019 Determination of β-lactoglobulin in milk and milk products by liquid chromatography
T/SSFS 0002-2021 Determination of IgG in milk and dairy products- Liquid chromatography method
T/TDSTIA 003-2021 High performance liquid chromatography for the determination of immunoglobulin IgG in milk and milk products
T/CCAA 70-2023 Determination of lactoferrin in bovine infant formula by liquid chromatography tandem mass spectrometry
T/TDSTIA 028-2022 Determination of osteopontin in foods for infants and young children, milk and milk products -High performance liquid chromatograph
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 - Light Industry, Total Protein Determination Method

QB/T 4363-2012 Determination of immunoglobulin egg yolk in toothpastes

Japanese Industrial Standards Committee (JISC), Total Protein Determination Method

JIS K 0605:1992 Methods for quantitative analysis of trypsin
JIS K 0606:1993 Methods for quantitative analysis of transferrin
JIS K 0610:1996 Tentative method for quantitative analysis by immunoturbidimetry of human serum albumin

Professional Standard - Tobacco, Total Protein Determination Method

YC/T 166-2003 Tobacco and tobacco products-Determination of total proteins content (Albumins)
YC/T 249-2008 Tobacco and tobacco products.Determination of protein.Continuous flow method

GOSTR, Total Protein Determination Method

GOST 34551-2019 Сonfectionery. Method for determination of mass fraction of protein
GOST 34430-2018 Enzyme preparations for food industry. Method for the determination of proteolitic activity
GOST 13496.4-2019 Fodder, мixed fodder and raw mixed fodder. Methods of nitrogen and crude protein determination
GOST 34536-2019 Milk and milk products. Determination of mass fraction of whey proteins by Kjeldahl method
GOST 34567-2019 Meat and meat products. Method for determination of moisture, fat, protein, sodium chloride and ash using near infrared spectroscopy
GOST R 58596-2019 Soils. Methods for determination of total nitrogen

ES-UNE, Total Protein Determination 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-EN ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates - Determination of fat content - Gravimetric method (ISO 23319:2022)
UNE-EN 15948:2021 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels
UNE-EN ISO 21572:2020 Foodstuffs - Molecular biomarker analysis - Immunochemical methods for the detection and quantification of proteins (ISO 21572:2019)
UNE-EN ISO 5983-1:2007/AC:2009 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005/Cor 1:2008)

Standard Association of Australia （SAA）, Total Protein Determination Method

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)

Shanghai Provincial Standard of the People's Republic of China, Total Protein Determination Method

DB31/T 138-9-1994 Total protein assay kit for clinical chemistry (biuret colorimetric method)

BE-NBN, Total Protein Determination Method

NBN T 91-253-1976 Water analysis methods - Determination of the albuminoid nitrogen

国家市场监督管理总局、中国国家标准化管理委员会, Total Protein Determination Method

GB/T 38477-2020 Determination of gene expression—Western blot
GB/T 6432-2018 Determination of crude protein in feeds—Kjeldahl method
GB/T 38163-2019 Determination of allergenic protein—LC-MS/MS method
GB/T 41366-2022 Livestock and poultry meat quality testing—Determination of moisture, protein and fat—Near-infrared spectroscopy method

AR-IRAM, Total Protein Determination Method

IRAM 15 707-1963

未注明发布机构, Total Protein Determination 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)
DIN EN ISO 21572:2004 Food – Methods for the detection of genetically modified organisms and their products – Protein methods
DIN EN ISO 21572 Berichtigung 1:2005 Food – Methods for the detection of genetically modified organisms and their products – Protein methods
BS EN ISO 5983-1:2005(2009) Animal feeding stuffs — Determination of nitrogen content and calculation of crude protein content — Part 1 : Kjeldahl method

Professional Standard - Commodity Inspection, Total Protein Determination Method

SN/T 2115-2008 Determination of the hotel nitrogen content and calculation of the crude protein content in food and feed for import and export.Combustion according to the Dumas principle
SN/T 3926-2014 Determination of protein content in dairy foods, egg foods and soy foods for export.Coomassie brilliant blue method
SN/T 1113-2002 Determination method of phycocyanin and chlorophyll content in spirulina powder for import and export
SN/T 1819-2006 Determination of latex protein in medical gloves for import and export.Modified Lowry method
SN/T 2497.20-2010 Test method of import and export dangerous chemicals-Part 20: Determination of protein content using Bradford method
SN/T 3132-2012 Detection of bovine immunoglobulin G in milk products of export.Enzyme-linked immunosorbent assay method

中华全国供销合作总社, Total Protein Determination Method

GH/T 1315-2020 Determination of casein in honey by enzyme-linked immunosorbent assay

农业农村部, Total Protein Determination Method

NY/T 3608-2020 Method for determination of collagen content in livestock and poultry bones Spectrophotometry
NY/T 3298-2018 Determination of crude protein in vegetable oils by near-infrared spectroscopy
NY/T 3870-2021 Determination of selenoamino acids in selenoproteins by liquid chromatography-atomic fluorescence spectrometry

ZA-SANS, Total Protein Determination Method

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

Professional Standard - Chemical Industry, Total Protein Determination Method

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

CU-NC, Total Protein Determination Method

NC 57-98-1-1986 Clinical Methods and Aids. Photometric Determination of Hemoglobin in Blood. Chemical Analysis Method
NC 20-06-22-1987 Medical Sciences. Photometric Determination of Cholesterols Linked to High Density Lipoproteins. Method of Chemical Analysis
NC 23-04-1968 Sulphuric acid. Determination oí total acidity. Volumetric 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, Total Protein Determination Method

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

Jiangsu Provincial Food Standard of the People's Republic of China, Total Protein Determination Method

DBS32/ 011-2016 Local food safety standards for the determination of α-lactalbumin in infant formula milk powder by gel chromatography

Jiangsu Provincial Standard of the People's Republic of China, Total Protein Determination Method

DB32/T 1823-2011 Determination of Total Cholesterol Content in Poultry Eggs by Enzyme Colorimetric Method

PL-PKN, Total Protein Determination Method

PN P04847-03-1986 Method for quantitative analysis of binary mixture of protein fibre
PN-EN 15948-2021-03 E Cereals -- Determination of moisture and protein -- Method using Near-Infrared Spectroscopy in whole kernels

ES-AENOR, Total Protein Determination Method

Danish Standards Foundation, Total Protein Determination Method

DS/ISO 17997-2:2004 Milk - Determination of casein-nitrogen content - Part 2: Direct method
DS/EN 15948:2020 Cereals – Determination of moisture and protein – Method using Near-Infrared Spectroscopy in whole kernels
DS/ISO 17997-1:2004 Milk - Determination of casein-nitrogen content - Part 1: Indirect method (Reference method)
DS/EN 15948:2012 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels
DS/ISO 13875:2007 Liquid milk - Determination of acid-soluble beta-lactoglobulin content - Reverse-phase HPLC-method
DS/EN ISO 20483:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
DS/EN ISO 5983-1/AC:2009 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method
DS/EN ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method

CH-SNV, Total Protein Determination Method

SN EN 15948-2021 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels

IT-UNI, Total Protein Determination Method

UNI EN 15948-2021 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels

Agricultural Standard of the People's Republic of China, Total Protein Determination Method

农业部783号公告-6-2006 Determination of iodinated casein in feeds.Liquid chromatography/Mass spectrometry
农业部2406号公告-8-2016 Detection of genetically modified animals and derived products.Qualitative PCR method for hLTF (Homo sapiens Lactotransferrin)
农业部1068号公告-3-2008 Determination of ten kinds of anabolic androgenic steroids in feeds.High performance liquid chromatography tandem mass spectrometry
农业部2406号公告-9-2016 Detection of genetically modified animals and derived products.Qualitative PCR method for hLALBA (Homo sapiens Lactalbumin, alpha-)

BG-BDS, Total Protein Determination Method

BGC ISO 5983:2001 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Kjeldahl method

YU-JUS, Total Protein Determination Method

JUS E.B8.034-1978 Specification of wheat for milling industry. Determination of raw protein content macro-micro method according to Kjeldahl

Hebei Provincial Standard of the People's Republic of China, Total Protein Determination Method

DB13/T 1091-2009 Determination of acid protease activity in enzyme preparations for feed - spectrophotometric method

Jilin Provincial Standard of the People's Republic of China, Total Protein Determination Method

DB22/T 1819-2013 Spectrophotometric method for the determination of acid protease activity in enzyme preparations for feed

国家药监局, Total Protein Determination Method

YY/T 1805.3-2022 Tissue engineering medical device product collagen Part 3: Collagen content detection based on characteristic peptide determination - liquid chromatography-mass spectrometry
YY/T 0616.7-2020 Disposable medical gloves Part 7: Immunological determination of antigenic protein content

IX-FAO, Total Protein Determination Method

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

American National Standards Institute （ANSI), Total Protein Determination Method

ANSI/ASAE S521-1993 Method of Determining Peanut Blanchability

Indonesia Standards, Total Protein Determination Method

SNI 13-4699-1998 Determination of total manganese (Mn-total) in manganese ores sample

Anhui Provincial Standard of the People's Republic of China, Total Protein Determination Method

DB34/T 2003-2013 Determination method of lactic acid in liquor base liquor

TH-TISI, Total Protein Determination Method

TIS 2255.1-2005 Animal feeding stuff s-determination of nitrogen content and calculation of crude protein content.part 1: kjeldahl method