Methods for determining protein molecular weight

Methods for determining protein molecular weight, Total:339 items.

The international standard classification for "Methods for determining protein molecular weight" includes: Fruits. Vegetables , food products in general , Animal feeding stuffs , Medical Sciences and health care facilities in general , Man-made fibres , Spices and condiments. Food additives .

The Chinese standard classification for "Methods for determining protein molecular weight" includes: Other cash crops , Basic standards and general methods , Cereal crop and forage crop in general , Livestock and poultry feed and additive , Food sanitation , Cereal crop and product , Sanitation in general , Basic standards and general methods , Chemical fibre in general , Basic standard and general method on forestry , Flavoring materials .

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 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 6432-1994 Method for the determination of crude protein in feedstuffs

Professional Standard - Agriculture

92药典四部-2020 0700 Other Determination Methods 0731 Determination of Protein Content
263药典三部-2020 Determination of Chemical Residues 3208 Determination of Aluminum Residues in Human Serum Albumin
220药典四部-2020 3200 Determination of Chemical Residues 3208 Determination of Aluminum Residues in Human Serum Albumin
209药典三部-2010 Appendix VII VIIK Determination of Aluminum Residues in Human Serum Albumin
203药典四部-2020 3100 Content Determination 3121 Determination of Human Albumin Polymer
218药典四部-2015 3100 Content Determination 3124 Recombinant Human Granulocyte Stimulating Factor Protein Content Determination
291药典三部-2020 Bioassay 3411 Determination of Bovine Serum Albumin Residues
245药典三部-2020 Content Determination Method 3124 Human Granulocyte Stimulating Factor Protein Content Determination Method
229药典四部-2015 3200 Determination of Chemical Residues 3208 Determination of Aluminum Residues in Human Serum Albumin
GB/T 5009.5-1985 Method for determination of protein in foods
223药典三部-2015 Content Determination Method 3121 General Principles of Human Albumin Polymer Determination Method 61
226药典三部-2015 Content Assay 3124 Recombinant Human Granulocyte Stimulating Factor Protein Assay General Rules 62
242药典三部-2020 Content Determination Method 3121 Determination of Human Albumin Polymer
220药典三部-2020 Content Determination Method 0731 Protein Content Determination Method
219药典三部-2010 Appendix Ⅷ ⅧI Determination of Bovine Serum Albumin Residues
201药典三部-2015 Content Determination Method 0731 General Principles of Protein Content Determination Method 50
247药典四部-2015 3400 Bioassay 3411 Bovine Serum Albumin Residue Determination
NY/T 3-1982 Method for determination of crude protein in cereals and beans seeds(Semi - Micro kjeldahl method)
111药典四部-2015 0700 Other Determination Methods 0731 Determination of Protein Content
206药典四部-2020 3100 Content Determination 3124 Recombinant Human Granulocyte Stimulating Factor Protein Content Determination
2330药典二部-2010 Appendix VII M Determination of protein content
215药典四部-2015 3100 Content Determination 3121 Determination of Human Albumin Polymer
240药典四部-2020 3400 Bioassay 3411 Bovine Serum Albumin Residue Determination
266药典三部-2015 Bioassay 3411 General Rules for Determination of Bovine Serum Albumin Residues 111
GB 2905-1982 Method for determination of crude protein in cereals and beans seeds (Semi-micro kjeldahls method)

Group Standards of the People's Republic of China

T/ZJBX 10-2021 Determination of the proportion of protein hydrolysates with relative molecular weight less than 1000u in protein feed
T/TDSTIA 026-2022 Determination of α-lactalbumin and β-lactoglobulin in infant formula milk powder—Gel permeation chromatography
T/ZGKSL 009-2023 Test method for determination of collagen secreted from human cells induced by recombinant collagen

农业农村部

NY/T 3608-2020 Determination of collagen content in livestock and poultry bone—Colorimetric method

Hainan Provincial Standard of the People's Republic of China

DB46/T 313-2015 Coconut Crude Protein and Crude Fat Determination

National Health Commission of the People's Republic of China

WST 341:2011 Hemoglobin measurement reference method

Professional Standard - Hygiene

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

Professional Standard - Textile

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

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

Heilongjiang Provincial Standard of the People's Republic of China

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

Professional Standard - Light Industry

QB/T 4363-2012 Determination of Immunoglobulin Egg Yolk (IgY) Activity in Toothpastes

Professional Standard - Business

SB/T 10317-1999 Measurement of proteinase activity

RU-GOST R

GOST R 51470-1999 Caseins and caseinates. Method for determination of protein content
GOST R 51464-1999 Caseins and caseinates. Method for determination of water content
GOST R 51463-1999 Rennet caseins and caseinates. Method for determination of ASH content
GOST R 51466-1999 Caseins. Method for determination of "fixed ash" mass fraction
GOST R 51467-1999 Caseins and caseinates. Method for determination of pH
GOST R 51469-1999 Caseins and caseinates. Photometric method for determination of lactose content
GOST R 52993-2008 Caseins and caseinates. Determination of moisture content (Reference method)
GOST 31978-2012 Caseins and caseinates. Method for determination of pH
GOST 25179-1990 Milk. Methods for determination of protein
GOST R 51454-1999 Caseins and caseinates. Method of determination of nitrate and nitrite contents
GOST 10846-1991 Grain and products of its processing. Method for determination of protein
GOST R 54478-2011 Grain. Methods of determination quantity and quality of gluten in wheat
GOST R 51468-1999 Caseins. Method for determination of free acidity
GOST R 54756-2011 Milk and milk products. Мethod for determination of mass portion of whey protein with Kjeldahl method
GOST R 51465-1999 Caseins and caseinates. Determination of scorched particles content
GOST 25179-2014 Milk and milk products. Method for determination of protein
GOST 30648.2-1999 Infant milk products. Methods for determination of total protein
GOST R 53020-2008 Wheat and wheat flour. Determination of gluten content. Part 1. Manual method
GOST R 53974-2010 Enzyme preparations for food industry. Method for determination of proteolitic activity
GOST 25011-1981 Meat and meat products. Methods of protein determination

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 0602:1992 Methods for quantitative analysis of serum albumin
JIS K 0605:1992 Methods for quantitative analysis of trypsin
JIS K 0606:1993 Methods for quantitative analysis of transferrin
JIS K 0603:1992 Methods for quantitative analysis of immuno globulin
JIS K 0604:2000 Proteins -- Monoclonal IgG -- Methods for quantitative analysis
JIS K 0609:1996 Methods for quantitative analysis of immobilized trypsin
JIS K 0607:2000 Proteins -- Glucoseoxydase -- Methods for quantitative analysis

International Dairy Federation (IDF)

IDF 78-2006 Caseins and caseinates. Determination of moisture content (Reference method)
IDF 90-2008 Rennet caseins and caseinates - Determination of ash (Reference method)
IDF 89-2008 Caseins - Determination of "fixed ash" (Reference method)
IDF 91-2008 Caseins - Determination of free acidity (Reference method)

Association Francaise de Normalisation

NF ISO 5550:2007 Caseins and caseinates - Determination of moisture content (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 V04-382:1988 Caseins and caseinates. Determination of fat content. Gravimetric method (reference method).
NF V04-388*NF ISO 5548:2008 Caseins and caseinates - Determination of lactose content - Photometric method.
NF ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
NF EN ISO 21572:2019 Food products - Molecular biomarker analysis - Immunochemical methods for protein detection and quantification
NF V04-387:1985 Caseins and caseinates. Determination of protein content (reference method).
NF ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)
NF ISO 5544:2008 Caseins - Determination of "fixed ashes" (Reference method)
NF ISO 5548:2008 Caseins and caseinates - Determination of lactose content - Photometric 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 V04-384*NF ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method).
NF V03-750:1999 Cereals and pulses. Determination of the nitrogen content and calculation of the raw protein content. Kjeldahl method.
NF V04-389:1985 Caseins and caseinates. Determination of scorched particles content.
NF V04-391*NF ISO 5544:2008 Caseins - Determination of "fixed ash" (Reference method)
NF EN ISO 23319:2022 Cheeses and processed cheeses, caseins and caseinates - Determination of fat content - Gravimetric method
NF V04-391:1985 Caseins. Determination of "fixes ash" (reference method).
NF ISO 5547:2008 Caseins - Determination of free acidity (Reference method)
NF V04-558*NF EN ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates - Determination of fat content - Gravimetric method
NF V04-390:1988 Caseins and caseinates. Determination of nitrate and nitrite contents. Method by cadmium reduction and spectrometry.

German Institute for Standardization

DIN ISO 5550 E:2020-06 Caseins and caseinates - Determination of moisture content (Reference method)
DIN ISO 5550:2020-12 Caseins and caseinates - Determination of moisture content (Reference method) (ISO 5550:2006)
DIN 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 Caseins and caseinates - Determination of moisture content (Reference method) (ISO 5550:2006)
DIN 10472:1996 Determination of casein and whey protein contents of milk and milk products - Electrophoretic 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 ISO 5545 E:2020-06 Rennet caseins and caseinates - Determination of ash (Reference method)
DIN ISO 5546 E:2020-08 Caseins and caseinates - Determination of pH (Reference method)
DIN EN ISO 8968-4 E:2013-09 Determination of nitrogen content of milk and milk products Part 4: Determination of protein and non-protein nitrogen content and calculation of pure protein content (Reference Method) (Draft)
DIN ISO 5544:2020-12 Caseins - Determination of "fixed ash" (Reference method) (ISO 5544:2008)
DIN 10470:2011-07 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
DIN ISO 5544 E:2020-06 Caseins - Determination of "fixed ash" (Reference method)
DIN ISO 5545:2020-12 Rennet caseins and caseinates - Determination of ash (Reference method) (ISO 5545:2008)
DIN 10470:2011 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
DIN ISO 5546:2020-12 Caseins and caseinates - Determination of pH (Reference method) (ISO 5546:2010)
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 ISO 5545:2020 Rennet caseins and caseinates - Determination of ash (Reference method) (ISO 5545:2008)
DIN 10464:1994 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 10470:1999 Determination of whey protein content and casein content in total protein of milk and milk products - Derivative spectroscopic method
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 ISO 5546:2020 Caseins and caseinates - Determination of pH (Reference method) (ISO 5546:2010)
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 10472:1996-06 Determination of casein and whey protein contents of milk and milk products - Electrophoretic method
DIN EN ISO 21415-2:2008 Wheat and wheat flour - Gluten content - Part 2: Determination of wet gluten by mechanical means (ISO 21415-2:2006); English version of DIN EN ISO 21415-2:2008-04
DIN EN ISO 21572:2020 Foodstuffs - Molecular biomarker analysis - Immunochemical methods for the detection and quantification of proteins (ISO 21572:2019)
DIN 10466:2001 Determination of whey protein content in total protein of milk and milk products - Polarographic method
DIN EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016); German version EN ISO 8968-4:2016
DIN 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 10450:1983-03 Determination of free acidity of caseins; reference method

AT-ON

ONORM DIN 10454-1993 Determination of protein content of caseins and caseinates - Reference method
ONORM DIN 10453-1993 Determination of water content of caseins and caseinates - Reference method
ONORM DIN 10456-1993 Determination of pH of caseins and caseinates - Reference method
ONORM S 1812-1982 Testing ojtextiles; quantitative analysis oj binary mixtures; casein fihres with other jibres; trypsin method

Korean Agency for Technology and Standards (KATS)

KS J 4201-2008 Methods for quantitative analysis of serum albumin
KS J 4201-2023 Methods for quantitative analysis of serum albumin
KS H 1204-2012 Testing method for crude proteins content
KS H ISO 5549:2021 Caseins and caseinates — Determination of protein content(Reference method)
KS H 1204-2001 Testing method for crude proteins content
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 5550-2007(2012) Caseins and caseinates－Determination of moisture content(Reference method)
KS J 4201-2018 Methods for quantitative analysis of serum albumin
KS H ISO 5550-2021 Caseins and caseinates－Determination of moisture content(Reference method)
KS H ISO 5543:2021 Caseins and caseinates — Determination of fat content — Gravimetric method(Reference method)
KS J 4202-2008 Methods for quantitative analysis of immunoglobulin
KS J 4202-2018 Methods for quantitative analysis of immunoglobulin
KS H ISO 5543:2006 Caseins and caseinates－Determination of fat content－Gravimetric method(Reference method)
KS J 4202-2023 Methods for quantitative analysis of immunoglobulin
KS J 4205-2018 Methods for quantitative analysis of immobilized trypsin
KS J 4205-2008 Methods for quantitative analysis of immobilized trypsin
KS J 4205-2023 Methods for quantitative analysis of immobilized trypsin
KS H ISO 5543-2006(2016) Caseins and caseinates－Determination of fat content－Gravimetric method(Reference method)
KS H ISO 5550:2007 Caseins and caseinates－Determination of moisture content(Reference method)
KS H ISO 5546:2006 Caseins and caseinates－Determination of pH(Reference method)
KS H ISO 5548:2020 Caseins and caseinates－Determination of lactose content－Photometric method
KS H 1204-2021 Testing method for crude proteins content
KS H ISO 5548:2006 Caseins and caseinates－Determination of lactose content－Photometric method
KS H ISO 5550-2007(2021) Caseins and caseinates－Determination of moisture content(Reference method)
KS J 4203-2008 Methods for quantitative analysis of monoclonal IgG
KS H ISO 5739-2006(2016) Caseins and caseinates－Determination of scorched particles content
KS H ISO 5739:2021 Caseins and caseinates — Determination of scorched particles content
KS H ISO 5545:2006 Rennet caseins and caseinates－Determination of ash(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 ISO 5546:2021 Caseins and caseinates — Determination of pH(Reference method)
KS H ISO 5544:2021 Caseins — Determination of “fixed ash”(Reference method)
KS H ISO 5546-2006(2016) Caseins and caseinates－Determination of pH(Reference method)
KS H ISO 5544:2006 Caseins－Determination of “fixed ash”(Reference method)
KS H ISO 5544-2006(2016) Caseins－Determination of “fixed ash”(Reference method)

CZ-CSN

CSN 57 0111-5-2002 Testing methods for casein and caseinates - Determination of protein content
CSN 57 0111-3-2002 Testing methods for casein and caseinates - Determination of moisture
CSN 570111-5-2002 Testing methods for casein and caseinates - Determination of protein content
CSN 57 0111 Cast.4-1979 Testing methods for asein. Determination f fat content
CSN 57 0111-12-2002 Testing methods for casein and caseinates - Determination of pH
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 46 7092-4-1998 Testing methods for feeding stuffs - Part 4: Determination of crude protein content
CSN 46 7092-27-1998 Testing methods for feeding stuffs - Part 27: Determination of the protein content
CSN 57 0111-2-2002 Testing methods for casein and caseinates - Methods of samphng of Chemical analysis
CSN 57 0111 Cast.11-1979 Testing methods for casein. Determination of colour
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 56 0186 Cast.12-1981 Testing methods for beer. art 12. etermination of proteins
CSN 57 0111-1-2002 Testing methods for casein and caseinates - General regulations
CSN 57 0105 Cast.5-1984 Powdered and condensed milk products. Testing methods. Determination of 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 57 0153-1986 Testing methods for meat products and sterilized food in preserves. Determination of protein content according to Kjeldahl

SCC

BS 6248-10:1986 Caseins and caseinates-Method for determination of fat (gravimetric reference method)
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)
BS 6248-9:1984 Caseins and caseinates-Method for the determination of scorched particles
NS-EN ISO 8968-4:2016 Milk and milk products — Determination of nitrogen content — Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016)
AENOR UNE-EN ISO 8968-4:2016 Milk and dairy products. Determination of nitrogen content. Part 4: Determination of protein and non-protein nitrogen content and calculation of true protein content (Reference method). (ISO 8968-4:2016)
DIN EN ISO 8968-4 E:2013 Draft Document - Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non protein nitrogen content and true protein content calculation (Reference method) (ISO/DIS 8968-4:2013); German version prEN ISO 8968-...
DIN 10470 E:2010 Draft Document - Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
AENOR UNE 34400-7:1967 Test methods for wheat flour. Determination of protein.
BS 5766-4:1998 Methods for analysis of animal feeding stuffs-Determination of nitrogen content and calculation of crude protein content
BS 5766-4:1981 Methods for analysis of animal feeding stuffs-Determination of nitrogen content and calculation of crude protein content
DANSK DS/ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates – Determination of fat content – Gravimetric method
DANSK DS/ISO 17997-2:2004 Milk - Determination of casein-nitrogen content - Part 2: Direct method
DANSK DS/EN ISO 21572:2019 Foodstuffs – Molecular biomarker analysis – Immunochemical methods for the detection and quantification of proteins (ISO 21572:2019)
NS-EN ISO 21572:2019 Foodstuffs - Molecular biomarker analysis - Immunochemical methods for the detection and quantification of proteins (ISO 21572:2019)

International Organization for Standardization (ISO)

ISO 5549:1978 Caseins and caseinates; Determination of protein content (Reference method)
ISO 5550:2006 | IDF 78:2006 Caseins and caseinates — Determination of moisture content (Reference method)
ISO 5543:2004 Caseins and caseinates - Determination of fat content - Gravimetric method (Reference method)
ISO 5543:2004|IDF 127:2004 Gravimetric method for determination of fat content in casein and caseinate (reference method)
ISO 5543:1986 Caseins and caseinates; Determination of fat content; Gravimetric method (Reference method)
ISO 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 5550:2006|IDF 78:2006 Caseins and caseinates — Determination of moisture content (Reference method)
ISO 5550:2006 Caseins and caseinates - Determination of moisture content (Reference method)
ISO 5543:2004 | IDF 127:2004 Caseins and caseinates — Determination of fat content — Gravimetric method (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 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 5550:1978 Caseins and caseinates; Determination of water content (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 5548:1980 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 5739:1983 Caseins and caseinates; Determination of scorched particles content
ISO 21415-2:2006 Wheat and wheat flour - Gluten content - Part 2: Determination of wet gluten by mechanical means
ISO 5545:2008 | IDF 90:2008 Rennet caseins and caseinates — Determination of ash (Reference method)
ISO 5546:1979 Caseins and caseinates; Determination of pH (Reference 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 5544:2008 | IDF 89:2008 Caseins — Determination of " fixed ash " (Reference method)
ISO 21415-2:2015 Wheat and wheat flour - Gluten content - Part 2: Determination of wet gluten and gluten index by mechanical means
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 5544:2008|IDF 89:2008 Determination of "fixed ash" of casein (reference method)
ISO 5544:1978 Caseins; Determination of " fixed ash " (Reference method)
ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates — Determination of fat content — Gravimetric method
ISO 5544:2008 Caseins - Determination of " fixed ash " (Reference method)
ISO 8195:1987 Caseins and caseinates; Determination of nitrate and nitrite contents; Method by cadmium reduction and spectrometry
ISO 21415-1:2006 Wheat and wheat flour - Gluten content - Part 1: Determination of wet gluten by a manual method
ISO 5547:2008 | IDF 91:2008 Caseins — Determination of free acidity (Reference method)
ISO 23319:2022 | IDF 250 Cheese and processed cheese products, caseins and caseinates — Determination of fat content — Gravimetric method
ISO 17997-2:2004 | IDF 29-2:2004 Milk — Determination of casein-nitrogen content — Part 2: Direct method
ISO 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
ISO 17997-2:2004 Milk - Determination of casein-nitrogen content - Part 2: Direct method
ISO 23319:2022 | IDF 250:2022 Cheese and processed cheese products, caseins and caseinates — Determination of fat content — Gravimetric method
ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter

KR-KS

KS H 1204-2022 Testing method for crude proteins content
KS H ISO 5549-2021 Caseins and caseinates — Determination of protein content(Reference method)
KS H ISO 5543-2021 Caseins and caseinates — Determination of fat content — Gravimetric method(Reference method)
KS H ISO 5548-2020 Caseins and caseinates－Determination of lactose content－Photometric method
KS H ISO 5739-2021 Caseins and caseinates — Determination of scorched particles content
KS H ISO 5545-2021 Rennet caseins and caseinates —Determination of ash(Reference method)
KS H ISO 5546-2021 Caseins and caseinates — Determination of pH(Reference method)
KS H ISO 5544-2021 Caseins — Determination of “fixed ash”(Reference method)

GOSTR

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

GSO

GSO ISO 5550:2015 Caseins and caseinates -- Determination of moisture content (Reference method)
OS GSO ISO 5550:2015 Caseins and caseinates -- Determination of moisture content (Reference 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)
GSO ISO 5543:2015 Caseins and caseinates -- Determination of fat content -- Gravimetric method (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 ISO 5544:2015 Caseins -- Determination of " fixed ash " (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)
OS GSO ISO 5548:2015 Caseins and caseinates -- Determination of lactose content -- Photometric method
GSO ISO 5548:2015 Caseins and caseinates -- Determination of lactose content -- Photometric method
BH GSO ISO 21572:2022 Foodstuffs — Molecular biomarker analysis — Immunochemical methods for the detection and quantification of proteins
GSO ISO 5739:2015 Caseins and caseinates -- Determination of contents of scorched particles and of extraneous matter
OS GSO ISO 5546:2015 Caseins and caseinates -- Determination of pH (Reference method)
GSO ISO 21572:2021 Foodstuffs — Molecular biomarker analysis — Immunochemical methods for the detection and quantification of proteins
BH GSO ISO 5546:2016 Caseins and caseinates -- Determination of pH (Reference method)
GSO ISO 5546:2015 Caseins and caseinates -- Determination of pH (Reference method)
GSO ISO 23319:2023 Cheese and processed cheese products, caseins and caseinates — Determination of fat content — Gravimetric method
BH GSO ISO 23319:2023 Cheese and processed cheese products, caseins and caseinates — Determination of fat content — Gravimetric method
BH GSO ISO 17997-2:2016 Milk -- Determination of casein-nitrogen content -- Part 2: Direct method
GSO ISO 17997-2:2014 Milk -- Determination of casein-nitrogen content -- Part 2: Direct method
OS GSO ISO 17997-2:2014 Milk -- Determination of casein-nitrogen content -- Part 2: Direct method
BH GSO ISO 5739:2016 Caseins and caseinates -- Determination of contents of scorched particles and of extraneous matter

CEN - European Committee for Standardization

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

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 N60:1970 Methods for the sampling and analysis of acid and rennet caseins

IN-BIS

IS 11888-1987 Method for determination of charred particle content in casein and caseinates
IS 11963-1987 Photometric method for determination of lactose content in casein and caseinate
IS 11962-1987 Method for determination of ash content in chymosin casein and caseinate (reference method)
IS 7481-1974 How to measure protein efficiency ratio (PER)
IS 11964-1987 Method for determination of free acidity in casein (reference method)
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

Spanish Association for Standardization (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)
UNE-EN ISO 21572:2020 Foodstuffs - Molecular biomarker analysis - Immunochemical methods for the detection and quantification of proteins (ISO 21572:2019)
UNE 64012:1970 MIXED FEEDS AND RAW MATERIALS. QUANTITATIVE DETERMINATION OF RAW PROTEIN. MACROMETHOD.
UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
UNE 34400-7:1967 TEST METHODS OF WHEAT FLOUR. PROTEIN DETERMINATION
UNE-EN ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates - Determination of fat content - Gravimetric method (ISO 23319:2022)
UNE 34827:1983 DETERMINATION OF THE CASEIN CONTENT OF MILK.

British Standards Institution (BSI)

BS ISO 5543:2004 Caseins and caseinates - Determination of fat content - Gravimetric method (reference method)
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 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)
BS ISO 5550:2006 Caseins and caseinates - Determination of moisture content (Reference method)
BS ISO 5548:2004 Caseins and caseinates - Determination of lactose content - Photometric methods
BS ISO 5544:2008 Caseins - Determination of "fixed ash" (Reference method)
BS ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
BS ISO 17997-2:2005 Milk - Determination of casein-nitrogen content - Direct method
BS 6248-11:1987 Caseins and caseinates. Method for determination of nitrate and nitrite contents
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 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 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 17997-1:2005 Milk - Determination of casein-nitrogen content - Indirect method (Reference method)
BS EN ISO 21415-1:2007 Wheat and wheat flour - Gluten content - Determination of wet gluten by a manual method
BS EN ISO 21572:2019 Foodstuffs. Molecular biomarker analysis. Immunochemical methods for the detection and quantification of proteins
BS ISO 17997-2:2004 Milk. Determination of casein-nitrogen content - Direct method
BS ISO 5547:2008 Caseins - Determination of free acidity (Reference method)
BS ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
BS EN ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates. Determination of fat content. Gravimetric method

Lithuanian Standards Office

LST ISO 5549:2001 Caseins and caseinates. Determination of protein content (Reference method) (identical ISO 5549:1978)
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 5546:2010 Caseins and caseinates - Determination of pH (Reference method) ( ISO 5546:2010, identical)

NL-NEN

NEN 3145-1966 Feeding stuffs. Methodsof analysis. Determination of crude protein

European Committee for Standardization (CEN)

EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
EN ISO 21415-2:2008 Wheat and wheat flour - Gluten content - Part 2: Determination of wet gluten by mechanical means
EN ISO 23319:2022 Cheese and processed cheese products, caseins and caseinates - Determination of fat content - Gravimetric method (ISO 23319:2022)
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)

American Society for Testing and Materials (ASTM)

ASTM RR-D11-1141 2018 D8238-Test Method for Immunological Assay to Quantify Guayule Proteins.
ASTM D3048-89(2016) Standard Test Method of Assay for Alkaline Protease
ASTM D3048-89(2009) Standard Test Method of Assay for Alkaline Protease
ASTM D3048-89(1995)e1 Standard Test Method of Assay for Alkaline Protease

VN-TCVN

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 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
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 7871-2-2008 Wheat and wheat flour.Gluten content.Part 2: Determination of wet gluten by mechanical means
TCVN 5537-1991 Sweetened condensed milk.Determination of total protein content

RO-ASRO

STAS 21/6-1973 OILSEED RESIDUES Determination of protein of protein brut content
STAS 2213/17-1976 SWEETS Determination of total proteinic content and milk proteinic substance content
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 5549:1996 Caseins and caseinates - Determination of protein content (Reference method)
SR ISO 5545:1996 Rennet caseins and caseinates - Determination of ash (Reference method)

PL-PKN

PN P04847-03-1986 Method for quantitative analysis of binary mixture of protein fibre

BE-NBN

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

TN-INNORPI

NT 14.51-1983 Determination of casein content in milk

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