Textural methods for determining protein gels

Textural methods for determining protein gels, Total:305 items.

The international standard classification for "Textural methods for determining protein gels" includes: Man-made fibres , food products in general , animal produce in general , Animal feeding stuffs , Edible oils and fats. Oilseeds , Fruits. Vegetables , Latex and raw rubber , Plastics , General methods of tests and analysis for food products , Milk and processed milk products , Biology. Botany. Zoology , Medical Sciences and health care facilities in general , Medical equipment .

The Chinese standard classification for "Textural methods for determining protein gels" includes: Chemical fibre in general , Food sanitation , Livestock and poultry product , Basic standards and general methods , Livestock and poultry feed and additive , Oil crop and product , Melon, fruit and vegetable planting and product , Other cash crops , Medical and foodstuff rubber products , Basic standards and general methods for synthetic resin and plastic , Cereal crop and forage crop in general , Basic standards and general methods , Food processing and products in general , Children foods , Environmental Condition and General Test Method , Basic standard and general method on forestry , Sanitation in general , Medical laboratory equipment .

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/FDSA 0050-2024 Method for determination of the bioavailability of oral collagen protein
T/CNHFA 003-2022 Qualitative detection of bovine milk casein in milk and dairy products— Capillary gel electrophoresis method
T/ZGKSL 010-2023 Test method for absorption of recombinant collagen through the skin
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/CAB 0062-2020 Identification of type Ⅲ collagen LC-MS/MS method
T/ZGKSL 005-2023 Quality requirements and efficacy assessment for recombinant collagen

Professional Standard - Textile

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

Professional Standard - Agriculture

176药典三部-2010 Appendix Ⅵ ⅥB protein assay
201药典三部-2015 Content Determination Method 0731 General Principles of Protein Content Determination Method 50
NY/T 1663-2008 Determination of β-lactoglobulin content in milk and dairy products SDS - PAGE electrophoresis
GB/T 5009.5-1985 Method for determination of protein in foods
GB 8856-1988 Method for Determination of Crude Protein in Fruit and Vegetable Products
2330药典二部-2010 Appendix VII M Determination of protein content
111药典四部-2015 0700 Other Determination Methods 0731 Determination of Protein Content
220药典三部-2020 Content Determination Method 0731 Protein Content Determination Method
92药典四部-2020 0700 Other Determination Methods 0731 Determination of Protein Content

未注明发布机构

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)
ASTM RR-D11-1141 2018 D8238-Test Method for Immunological Assay to Quantify Guayule Proteins.
DIN ISO 5545 E:2020-06 Rennet caseins and caseinates - Determination of ash (Reference method)
DIN ISO 5550 E:2020-06 Caseins and caseinates - Determination of moisture content (Reference method)
DIN ISO 5546 E:2020-08 Caseins and caseinates - Determination of pH (Reference method)
ASTM RR-D11-1139 2016 D6499-Test Method for Immunological Measurement of Antigenic Protein in Hevea Natural Rubber (HNR) and its Products
DIN ISO 5544 E:2020-06 Caseins - Determination of "fixed ash" (Reference method)

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

GB/T 5009.5-2003 Determination of protein in foods
GB/T 19495.8-2004 Detection of genetically modified plants and derived products-Protein based methods
GB/T 8856-1988 Method for determination of crude protein in fruit and vegetable products
GB/T 7193.6-1987 Unsaturated polyester resin--Determination of gel time at 25 Centigrade
GB/T 17811-1999 Determination of digestibility in animal protein feeds--Pepsin method
GB/T 5511-1985 Inspection of grain and oilseeds--Methods for determination of crude protein
GB/T 14771-1993 Method for determination of protein content in foods
GB/T 5413.1-1997 Milk powder and formula foods for infant and young children-Determination of protein
GB/T 12007.7-1989 Determination of gelation time of epoxide resins
GB/T 21870-2008 Medical gloves made from natural rubber latex - Determination of water-extractable protein using the modified Lowry method
GB/T 15673-1995 Method for determination of crude protein in edible fungi
GB/T 14489.2-1993 Method for determination of crude protein in oilseed
GB 12007.7-1989 Determination of gelation time of epoxide resins
GB/T 6432-1994 Method for the determination of crude protein in feedstuffs
GB/T 17811-2008 Determination of pepsin digestibility in animal protein feeds - Filtration method

Professional Standard - Chemical Industry

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

Jiangsu Provincial Standard of the People's Republic of China

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

国家市场监督管理总局、中国国家标准化管理委员会

GB/T 38482-2021 Determination of animal type Ⅰ collagen—Polyacrylamide gel electrophoresis

Professional Standard - Commodity Inspection

SN/T 1819-2006 Determination of latex protein in medical gloves for import and export-Modified Lowry method
SN/T 3926-2014 Determination of protein content in dairy foods,egg foods and soy foods for export - Coomassie brilliant blue method

Taiwan Provincial Standard of the People's Republic of China

CNS 2770-5-1986 Method of Test for Feeds : Determination of Crude Protein
CNS 2770.5-1986 Method of Test for Feeds : Determination of Crude Protein
CNS 3449-2007 Method of test for milk and milk products - Determination of protein

Hebei Provincial Standard of the People's Republic of China

DB13/T 1098-2009 Determination of protein in feed

农业农村部

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

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

Guangdong Provincial Standard of the People's Republic of China

DB44/T 1274-2013 Determination of Gel Strength of Frozen Surimi by Texture Analyzer

Professional Standard - Hygiene

WS 341-2011 Reference method for hemoglobin determination
WS/T 341-2011 Reference method for haemoglobinometry in human blood

National Health Commission of the People's Republic of China

WST 341:2011 Hemoglobin measurement reference method

国家药监局

YY/T 1805.3-2022 Tissue engineering medical device products—Collagen protein—Part 3:Quantification of collagen based on marker peptide detection—Liquid chromatography-mass spectrometry
YY/T 1790-2021 Fibrin/fibrinogen degradation products testing kit(Iatex immunoturbidimetry)

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

RU-GOST R

GOST 25179-1990 Milk. Methods for determination of protein
GOST R 51463-1999 Rennet caseins and caseinates. Method for determination of ASH content
GOST R 51470-1999 Caseins and caseinates. Method for determination of protein content
GOST 25179-2014 Milk and milk products. Method for determination of protein
GOST R 51467-1999 Caseins and caseinates. Method for determination of pH
GOST 25011-1981 Meat and meat products. Methods of protein determination
GOST 25011-2017 Meat and meat products. Protein determination methods
GOST R 51464-1999 Caseins and caseinates. Method for determination of water content
GOST 10846-1991 Grain and products of its processing. Method for determination of protein
GOST 31978-2012 Caseins and caseinates. Method for determination of pH
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 R 51454-1999 Caseins and caseinates. Method of determination of nitrate and nitrite contents
GOST 28074-1989 Vegetable fodder. Method for the determination of crude protein solubility
GOST R 54478-2011 Grain. Methods of determination quantity and quality of gluten in wheat
GOST 28075-1989 Vegetable fodder. Method for the determination of crude protein splitting
GOST R 51468-1999 Caseins. Method for determination of free acidity
GOST R 53761-2009 Milk. The identification of protein composition by use the electrophoresis in polyakrilamide gel
GOST 20264.2-1988 Enzyme preparations. Methods for determination of proteolytic activity
GOST R 54756-2011 Milk and milk products. Мethod for determination of mass portion of whey protein with Kjeldahl method
GOST R 52993-2008 Caseins and caseinates. Determination of moisture content (Reference method)
GOST 13496.4-1984 Fodder, mixed fodder and animal feed raw stuff. Methods of nitrogen and crude protein determination
GOST 13496.4-1993 Fodder, mixed fodder and animal feed raw stuff. Methods of nitrogen and crude protein determination
GOST R 53974-2010 Enzyme preparations for food industry. Method for determination of proteolitic activity
GOST 23327-1978 Milk. Methods for determination of the total protein content
GOST 22181-2015 Unsaturated polyester resins. Methods for determination of gel time at ambient temperature
GOST R 51469-1999 Caseins and caseinates. Photometric method for determination of lactose content
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 33528-2015 Milk and milk products. Identification of protein composition by use of electrophoresis in polyacrylamide gel

AT-ON

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

British Standards Institution (BSI)

BS ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (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 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
BS EN ISO 8968-4:2016(2017) Milk and milk products — Determination of nitrogen content Part 4 : Determination of protein and non - protein nitrogen content and true protein content calculation (Reference method)
BS ISO 5544:2008 Caseins - Determination of "fixed ash" (Reference method)
BS ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
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 12243:2003+A1:2012 Medical gloves made from natural rubber latex. Determination of water-extractable protein using the modified Lowry method
BS 6248-11:1987 Caseins and caseinates. Method for determination of nitrate and nitrite contents
BS ISO 5547:2008 Caseins - Determination of free acidity (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 17997-2:2005 Milk - Determination of casein-nitrogen content - Direct method
BS 5350-B5:1976 Methods of test for adhesives - Determination of gelation time
BS EN ISO 8968-5:2002 Milk. Determination of nitrogen content. Determination of protein-nitrogen content

IN-BIS

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 7219-1973 Methods for determination of protein in food and feed
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 2006-1988 Methods for the quantitative chemical analysis of binary mixtures of protein fibers and certain other non-protein fibers
IS 11964-1987 Method for determination of free acidity in casein (reference method)
IS 6504-1979 Methods for quantitative chemical analysis of ternary mixtures of viscose rayon, cotton and protein fibers

Korean Agency for Technology and Standards (KATS)

KS H 1204-2012 Testing method for crude proteins content
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 5549:2021 Caseins and caseinates — Determination of protein content(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 H ISO 5546:2006 Caseins and caseinates－Determination of pH(Reference method)
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 5550-2007(2021) Caseins and caseinates－Determination of moisture content(Reference method)
KS H ISO 5546:2021 Caseins and caseinates — Determination of pH(Reference method)
KS H ISO 5739:2006 Caseins and caseinates－Determination of scorched particles content
KS M ISO 12243:2017 Medical gloves made from natural rubber latex — Determination of water-extractable protein using the modified Lowry method
KS H ISO 5550:2007 Caseins and caseinates－Determination of moisture content(Reference 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 H ISO 5548:2006 Caseins and caseinates－Determination of lactose content－Photometric method
KS M ISO 12243:2007 Medical gloves made from natural rubber latex－Determination of water-extractable protein using the modified Lowry method
KS H ISO 5550-2021 Caseins and caseinates－Determination of moisture content(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 5545:2006 Rennet caseins and caseinates－Determination of ash(Reference method)

Japanese Industrial Standards Committee (JISC)

JIS K 0602:2000 Proteins -- Serum albumin -- Methods for quantitative analysis
JIS K 0605:2000 Proteins -- Trypsin -- Methods for quantitative analysis
JIS K 0606:2000 Proteins -- Transferrin -- Methods for quantitative analysis
JIS K 0603:2000 Proteins -- Immunoglobulin -- Methods for quantitative analysis
JIS K 0604:2000 Proteins -- Monoclonal IgG -- Methods for quantitative analysis
JIS K 0607:2000 Proteins -- Glucoseoxydase -- Methods for quantitative analysis
JIS K 0605:1992 Methods for quantitative analysis of trypsin

Association Francaise de Normalisation

NF ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (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 V04-387:1985 Caseins and caseinates. Determination of protein content (reference method).
NF EN ISO 8968-4:2016 Milk and dairy products - Determination of nitrogen content - Part 4: determination of protein and non-protein nitrogen content and calculation of true protein content (Reference method)
NF ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
NF V03-715:1981 Common wheat and {durum} wheat. Splitting of gliadin-type proteins by starch-gel electrophoresis for varietal identification.
NF ISO 5550:2007 Caseins and caseinates - Determination of moisture content (reference method)
NF ISO 5544:2008 Caseins - Determination of "fixed ashes" (Reference method)
NF V03-722:1990 {durum}. Identification of variety by electrophoresis of proteins in polyacrylamide gel containing sodium docecylsulfate.
NF ISO 5547:2008 Caseins - Determination of free acidity (Reference method)
NF V04-384*NF ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method).
NF V04-384:1985 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 5548:2008 Caseins and caseinates - Determination of lactose content - Photometric method

CZ-CSN

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 0111-3-2002 Testing methods for casein and caseinates - Determination of moisture
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 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 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 0105 Cast.5-1984 Powdered and condensed milk products. Testing methods. Determination of protein content
CSN 57 0111-1-2002 Testing methods for casein and caseinates - General regulations
CSN 57 0111 Cast.4-1979 Testing methods for asein. Determination f fat content
CSN 57 0153-1986 Testing methods for meat products and sterilized food in preserves. Determination of protein content according to Kjeldahl
CSN 57 0111-2-2002 Testing methods for casein and caseinates - Methods of samphng of Chemical analysis
CSN 57 0111 Cast.9-1979 Testing methods for casein. Determination of solubility index

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 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 M ISO 12243-2017 Medical gloves made from natural rubber latex — Determination of water-extractable protein using the modified Lowry method
KS H ISO 5548-2020 Caseins and caseinates－Determination of lactose content－Photometric method

German Institute for Standardization

DIN ISO 5545:2020-12 Rennet caseins and caseinates - Determination of ash (Reference method) (ISO 5545:2008)
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 10466:2001 Determination of whey protein content in total protein of milk and milk products - Polarographic method
DIN 58924:2022 Haemostaseology - Reference method for the determination of the collagen binding acitvity of the VWF; Text in German and English
DIN ISO 5546:2020-12 Caseins and caseinates - Determination of pH (Reference method) (ISO 5546:2010)
DIN 58924:2021 Haemostaseology - Reference method for the determination of the collagen binding acitvity of the VWF; Text in German and English
DIN 10470:2011 Milk and milk products - Determination of whey protein content and casein content in total protein - 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 ISO 5550:2020-12 Caseins and caseinates - Determination of moisture content (Reference method) (ISO 5550:2006)
DIN 58924:2022-05 Haemostaseology - Reference method for the determination of the collagen binding acitvity of the VWF; Text in German and English
DIN 10464:1994 Determination of casein content, casein and whey protein contents in total protein of milk and milk products - Casein-phosphorus method
DIN 10464:1994-08 Determination of casein content, casein and whey protein contents in total protein of milk and milk products - Casein-phosphorus method
DIN ISO 5546:2020 Caseins and caseinates - Determination of pH (Reference method) (ISO 5546:2010)
DIN 10470:1999 Determination of whey protein content and casein content in total protein of milk and milk products - Derivative spectroscopic method
DIN ISO 5544:2020-12 Caseins - Determination of "fixed ash" (Reference method) (ISO 5544:2008)
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 ISO 5550:2020 Caseins and caseinates - Determination of moisture content (Reference method) (ISO 5550:2006)
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 10450:1983-03 Determination of free acidity of caseins; reference method
DIN 10470:2011-07 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method

International Organization for Standardization (ISO)

ISO 5549:1978 Caseins and caseinates; Determination of protein content (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 8968-4:2016 | IDF 20-4:2016 Milk and milk products — Determination of nitrogen content — Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
ISO 5546:2010 | IDF 115:2010 Caseins and caseinates — Determination of pH (Reference method)
ISO 5546:2010|IDF 115:2010 Determination of pH value of casein and caseinate (standard method)
ISO 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
ISO 5546:1979 Caseins and caseinates; Determination of pH (Reference method)
ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
ISO 12243:2003 Medical gloves made from natural rubber latex - Determination of water-extractable protein using the modified Lowry method
ISO 5739:2003|IDF 107:2003 Determination of casein and caseinate coke particles and foreign matter content
ISO 5550:2006 Caseins and caseinates - Determination of moisture content (Reference 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 5545:1978 Rennet caseins and caseinates; Determination of ash (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 5548:2004|IDF 106:2004 Caseins and caseinates — Determination of lactose content — Photometric method
ISO 5542:1984 Milk; Determination of protein content; Amido black dye-binding method (Routine method)
ISO 5548:1980 Caseins and caseinates; Determination of lactose content; Photometric method
ISO 5550:2006 | IDF 78:2006 Caseins and caseinates — Determination of moisture content (Reference 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)

SCC

AENOR UNE 34400-7:1967 Test methods for wheat flour. Determination of protein.
UNE 34400-7:1967 TEST METHODS OF WHEAT FLOUR. PROTEIN DETERMINATION
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)
AS N60:1970 Methods for the sampling and analysis of acid and rennet caseins
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)
BS 6248-9:1984 Caseins and caseinates-Method for the determination of scorched particles
BS 6248-10:1986 Caseins and caseinates-Method for determination of fat (gravimetric reference method)
AENOR UNE-EN ISO 8968-4:2016 Milk and dairy products. Determination of nitrogen content. Part 4: Determination of protein and non-protein nitrogen content and calculation of true protein content (Reference method). (ISO 8968-4:2016)
DIN EN ISO 8968-4 E:2013 Draft Document - Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non protein nitrogen content and true protein content calculation (Reference method) (ISO/DIS 8968-4:2013); German version prEN ISO 8968-...
AENOR UNE 77059:2002 Water quality. Determination of aluminum. Colorimetric method with eriochromocyanin R.
BS 1416:1948 Methods for the sampling and analysis of rennet casein
BS 1416:1962 Methods for the sampling and analysis of rennet casein
BS 1416:1953 Methods for the sampling and analysis of rennet casein
DANSK DS/EN 15948:2020 Cereals – Determination of moisture and protein – Method using Near-Infrared Spectroscopy in whole kernels
BS 3900-J3:1987 Methods of test for paints. Determination of the gelation time of coating powders
UNE 34835:1985 MILK. DETERMINATION OF PROTEIN CONTENT. AMIDO BLACK DYE-BINDING METHOD. ROUTINE METHOD.
DIN ISO 5545 E:2020 Draft Document - Rennet caseins and caseinates - Determination of ash (Reference method) (ISO 5545:2008); Text in German and English

GOSTR

GOST 34551-2019 Сonfectionery. Method for determination of mass fraction of protein
GOST 34454-2018 Dairy products. Determination of protein content by the Kjeldahl method
GOST 13496.4-2019 Fodder, мixed fodder and raw mixed fodder. Methods of nitrogen and crude protein determination

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)

ES-UNE

UNE-EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016)
UNE-EN 15948:2021 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels

Lithuanian Standards Office

LST ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method) (ISO 5545:2008, identical)
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)

AENOR

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

RO-ASRO

SR ISO 5545:1996 Rennet caseins and caseinates - Determination of ash (Reference method)
STAS 2213/17-1976 SWEETS Determination of total proteinic content and milk proteinic substance content
STAS SR 13348-1-1996 Tea. Analysis methods. Determination of proteic nitrogen by the Kjeldahl method. Spectrophotometric method
SR ISO 5549:1996 Caseins and caseinates - Determination of protein content (Reference method)
SR 5546-1997 Caseins and caseinates - Determination of pH (Reference method)

GSO

GSO ISO 5545:2015 Rennet caseins and caseinates -- Determination of 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)
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)
OS GSO ISO 5546:2015 Caseins and caseinates -- Determination of pH (Reference method)
GSO ISO 5546:2015 Caseins and caseinates -- Determination of pH (Reference method)
BH GSO ISO 5546:2016 Caseins and caseinates -- Determination of pH (Reference method)
BH GSO ISO 5543:2016 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)
OS GSO ISO 5543:2015 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)
GSO ISO 5550:2015 Caseins and caseinates -- Determination of moisture content (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
OS GSO ISO 5550:2015 Caseins and caseinates -- Determination of moisture content (Reference method)
GSO ISO 5543:2015 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)

VN-TCVN

TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 5461-1991 Synthetic detergents.Determination of proteinous activity

American Society for Testing and Materials (ASTM)

ASTM D8238-24 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 D8238-18(2023) 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 D3048-89(1995)e1 Standard Test Method of Assay for Alkaline Protease
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 D7818-12 Standard Test Method for Enumeration of Proteolytic Bacteria in Fresh (Uncured) Hides and Skins
ASTM D5712-99 Standard Test Method for the Analysis of Aqueous Extractable Protein in Natural Rubber and Its Products Using the Modified Lowry Method
ASTM D6499-07 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
ASTM D6499-00 Standard Test Method for the Immunological Measurement of Antigenic Protein in Natural Rubber and its Products

AR-IRAM

IRAM 15 707-1963 How to measure plant protein in food

International Dairy Federation (IDF)

IDF 90-2008 Rennet caseins and caseinates - Determination of ash (Reference method)
IDF 78-2006 Caseins and caseinates. Determination of moisture content (Reference method)
IDF 89-2008 Caseins - Determination of "fixed ash" (Reference method)
IDF 91-2008 Caseins - Determination of free acidity (Reference method)
IDF 107-2003 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

NL-NEN

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

PT-IPQ

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

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)

ZA-SANS

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

Danish Standards Foundation

DS 2253:1983 Water quality. Determination of aerobic proteclytic bacteria at 30 centigrades
DS/ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter

PL-PKN

PN C04288-14-1987 Technical fats Methods of testing Determination of protein content

Others: