Determination of protein by UV method

Determination of protein by UV method, Total:346 items.

The international standard classification for "Determination of protein by UV method" includes: General methods of tests and analysis for food products , Milk and milk products in general , Milk and processed milk products , Waxes, bituminous materials and other petroleum products , Animal feeding stuffs , Cereals, pulses and derived products , Edible oils and fats. Oilseeds , Meat and meat products , food products in general , Fruits. Vegetables , Biology. Botany. Zoology , Man-made fibres , Spices and condiments. Food additives , Laboratory medicine , Medical Sciences and health care facilities in general , Tobacco, tobacco products and related equipment .

The Chinese standard classification for "Determination of protein by UV method" includes: Basic standards and general methods , Milk and dairy products , Petroleum wax , Livestock and poultry feed and additive , Cereal crop and forage crop in general , Oil crop and product , Meat processing and products , Food sanitation , Other cash crops , Food processing and products in general , Melon, fruit and vegetable planting and product , Basic standard and general method on forestry , Basic standards and general methods , Basic Subject in general , Environmental Condition and General Test Method , Chemical fibre in general , Flavoring materials , Medical laboratory equipment , Sanitation in general , Tobacco .

Professional Standard - Agriculture

215药典四部-2015 3100 Content Determination 3121 Determination of Human Albumin Polymer
2330药典二部-2010 Appendix VII M Determination of protein content
247药典四部-2015 3400 Bioassay 3411 Bovine Serum Albumin Residue Determination
92药典四部-2020 0700 Other Determination Methods 0731 Determination of Protein Content
ZB X 66026-1987 Total Nitrogen and Crude Protein Determination
245药典三部-2020 Content Determination Method 3124 Human Granulocyte Stimulating Factor Protein Content Determination Method
NY/T 1678-2008 Determination of protein in milk and dairy products Biuret spectrophotometry method
294药典三部-2020 Bioassay 3414 Determination of Protein Residue in Yeast Engineering Bacteria
249药典四部-2015 3400 Bioassay 3413 Determination of Pseudomonas bacterial protein residues
248药典四部-2015 3400 Bioassay 3412 Determination of Escherichia coli protein residues
223药典三部-2015 Content Determination Method 3121 General Principles of Human Albumin Polymer Determination Method 61
240药典四部-2020 3400 Bioassay 3411 Bovine Serum Albumin Residue Determination
NY/T 3512-2019 Non-destructive determination of protein in meat- Near-infrared spectroscopy method
NY/T 4306-2023 Determination of activity of papain and bromelain-Ultaraviolet spectrophotometry
176药典三部-2010 Appendix Ⅵ ⅥB protein assay
220药典三部-2020 Content Determination Method 0731 Protein Content Determination Method
NY/T 2659-2014 Rapid determination of fat,protein,lactose and total solids in milk—Infrared spectrometry
201药典三部-2015 Content Determination Method 0731 General Principles of Protein Content Determination Method 50
243药典四部-2020 3400 Biological Assay 3414 Determination of Protein Residue in Yeast Engineering Bacteria
203药典四部-2020 3100 Content Determination 3121 Determination of Human Albumin Polymer
292药典三部-2020 Bioassay 3412 Determination of Escherichia coli protein residues
651药典第一增补本-2010 Part Two Revised Appendix Appendix VII M Determination of Protein Content
250药典四部-2015 3400 Biological Assay 3414 Determination of Protein Residue in Yeast Engineering Bacteria
291药典三部-2020 Bioassay 3411 Determination of Bovine Serum Albumin Residues
NY/T 3493-2019 Agricultural biomass raw materials. Determination of crude protein
NY/T 3298-2018 Determination of crude protein content in vegetable oilseeds—Near-infrared spectroscopy method
241药典四部-2020 3400 Bioassay 3412 Determination of Escherichia coli protein residues
242药典三部-2020 Content Determination Method 3121 Determination of Human Albumin Polymer
111药典四部-2015 0700 Other Determination Methods 0731 Determination of Protein Content
242药典四部-2020 3400 Bioassay 3413 Determination of Pseudomonas bacterial protein residues
293药典三部-2020 Bioassay 3413 Determination of protein residues in Pseudomonas bacteria

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

GB/T 24899-2010 Inspection of grain and oils—Determination of crude protein in wheat—Near-infrared method
GB/T 41366-2022 Livestock and poultry meat quality testing—Determination of moisture,protein and fat—Near-infrared spectroscopy method
GB/T 24870-2010 Inspection of grain and oils—Crude protein and crude fat determination in soybean—Near-infrared method
GB/T 5009.5-2003 Determination of protein in foods
GB/T 18868-2024 Rapid determination of moisture, crude protein, crude fibre, crude fat, lysine and methinione in feeds—Near infrared spectroscopy
GB/T 24901-2010 Inspection of grain and oils—Determination of crude protein in maize—Near-infrared method
GB/T 17811-1999 Determination of digestibility in animal protein feeds--Pepsin method
GB/T 11081-1989 White oils-Determination of ultraviolet absorption
GB/T 35809-2018 Method for analysis of forestry biomass—Determination of protein content
GB/T 14489.2-1993 Method for determination of crude protein in oilseed
GB/T 38163-2019 Determination of allergenic protein—LC-MS/MS method
GB/T 5511-1985 Inspection of grain and oilseeds--Methods for determination of crude protein
GB/T 11081-2005 Standard test method for ultraviolet adsorption of white oils
GB/T 14771-1993 Method for determination of protein content in foods
GB/T 19495.8-2004 Detection of genetically modified plants and derived products-Protein based methods
GB/T 24871-2010 Inspection of grain and oils—Crude protein determination in wheat flour—Near-infrared method
GB/T 8856-1988 Method for determination of crude protein in fruit and vegetable products
GB/T 17811-2008 Determination of pepsin digestibility in animal protein feeds - Filtration method
GB/T 6432-1994 Method for the determination of crude protein in feedstuffs
GB/T 24897-2010 Inspection of grain and oils—Crude protein determination in rice—Near-infrared method
GB/T 18868-2002 Method for determination of moisture,crude protein,crude fat,crude fibre,lysine and methinione in feeds--Near infrared reflectance spectroscopy
GB 8856-1988 Method for Determination of Crude Protein in Fruit and Vegetable Products
GB/T 5009.5-1985 Method for determination of protein in foods
GB/T 34800-2017 Detection method of activity and impurity of proteinase K
GB/T 15673-1995 Method for determination of crude protein in edible fungi

Taiwan Provincial Standard of the People's Republic of China

CNS 3449-2007 Method of test for milk and milk products - Determination of protein
CNS 2770.5-1986 Method of Test for Feeds : Determination of Crude Protein
CNS 2770-5-1986 Method of Test for Feeds : Determination of Crude Protein
CNS 3449-1988 Methods of Test for Milk and Milk Products: The Quantitive Analysis of Protein
CNS 6511-2008 Method of test for meat and meat products - Determination of crude protein content

Group Standards of the People's Republic of China

T/ZGKSL 009-2023 Test method for determination of collagen secreted from human cells induced by recombinant collagen
T/ZJBX 10-2021 Determination of the proportion of protein hydrolysates with relative molecular weight less than 1000u in protein feed
T/HXCY 005-2021 Determination of Crude Protein in Siberian wildrye on Qinghai-Tibet Plateau by Near Infrared Method
T/FDCA 11-2024 Cosmetic anti-wrinkle and firming efficacy test - Determination of type I collagen content in ultraviolet-induced human fibroblasts
T/HXCY 006-2021 Determination of Crude Protein in Reed Canary Grass on Qinghai-Tibet Plateau by Near Infrared Method
T/SHNX 001-2025 Determination of lactoferrin, α-lactalbumin and β-lactoglobulin in raw bovine milk by liquid chromatography-tandem mass spectrometry
T/CHCIA 040-2024 T/FDCA 011-2024 Cosmetic anti-wrinkle and firming efficacy test Determination of type I collagen content in ultraviolet-induced human fibroblasts

Hebei Provincial Standard of the People's Republic of China

DB13/T 5127.14-2019 Determination of Toxic and Hazardous Substances in Extracts of Implantable Medical Devices - Visible-UV Spectrophotometry for Protein Migration
DB13/T 1098-2009 Determination of protein in feed

未注明发布机构

CLSI C64-2021 Quantitative Measurement of Proteins and Peptides by Mass Spectrometry

Tianjin Provincial Standard of the People's Republic of China

DB12/T 347-2007 Near-infrared rapid detection method of crude protein content in wheat and corn

Professional Standard - Textile

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

Professional Standard - Business

SB/T 10317-1999 Measurement of proteinase activity

Professional Standard - Energy

NB/SH/T 0966-2017 Test method for total aromatics in white oil by ultraviolet spectrophotometry

Professional Standard - Petrochemical Industry

SH/T 0966-2017 Determination of aromatic hydrocarbon content in white oil by UV spectrophotometry

Professional Standard - Medicine

YY/T 1151-2009 Protein microarray for in vitro diagnostics
YY/T 1722-2020 Prealbumin testing kit (immune turbidity method)
YY/T 1228-2014 Albumin test reagent kit
YY/T 1578-2018 Glycated albumin assay kit(enzymatic method)

Shandong Provincial Standard of the People's Republic of China

DB37/T 4149-2020 Determination of water quality UV254 by ultraviolet spectrophotometry

Professional Standard - Commodity Inspection

SN/T 3926-2014 Determination of protein content in dairy foods,egg foods and soy foods for export - Coomassie brilliant blue 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

Professional Standard - Hygiene

WS/T 121-1999 Guidelines for the immunoturbidimetric determination of serum apolipoprotein A1 and apolopoprotein B
WS/T 341-2011 Reference method for haemoglobinometry in human blood
WS 341-2011 Reference method for hemoglobin determination

National Health Commission of the People's Republic of China

WST 341:2011 Hemoglobin measurement reference method

Professional Standard - Tobacco

YC/T 249-2008 Tobacco and tobacco products - Determination of protein - Continuous flow method

American Water Works Association (AWWA)

AWWA WQTC71633 Protein Damage in UV Treated Adenovirus

International Organization for Standardization (ISO)

ISO 5549:1978 Caseins and caseinates; Determination of protein content (Reference method)
ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
ISO 5739:2003|IDF 107:2003 Determination of casein and caseinate coke particles and foreign matter content
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 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl 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 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 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 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
ISO 5548:2004 | IDF 106:2004 Caseins and caseinates — Determination of lactose content — Photometric 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 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)
ISO 5550:1978 Caseins and caseinates; Determination of water content (Reference 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 5548:1980 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 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 15323:2002|IDF173:2002 Determination of nitrogen solubility rate of milk powder protein products
ISO 15323:2002 Dried milk protein products - Determination of nitrogen solubility index

Korean Agency for Technology and Standards (KATS)

KS H ISO 5549:2021 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 5549:2006 Caseins and caseinates－Determination of protein content(Reference method)
KS H ISO 5739:2006 Caseins and caseinates－Determination of scorched particles content
KS H 1204-2012 Testing method for crude proteins content
KS H 1204-2001 Testing method for crude proteins content
KS H 1204-2022 Testing method for crude proteins content
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 5546-2006(2016) Caseins and caseinates－Determination of pH(Reference method)
KS H 1204-2021 Testing method for crude proteins content
KS H ISO 5546-2021 Caseins and caseinates — Determination of pH(Reference method)
KS H ISO 5546:2006 Caseins and caseinates－Determination of pH(Reference method)
KS H ISO 5550-2007(2012) 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 5548:2020 Caseins and caseinates－Determination of lactose content－Photometric method
KS H ISO 5550-2021 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 5545:2021 Rennet caseins and caseinates —Determination of ash(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)
KS H ISO 5543-2006(2016) Caseins and caseinates－Determination of fat content－Gravimetric method(Reference method)
KS H ISO 5545-2006(2016) Rennet caseins and caseinates－Determination of ash(Reference method)
KS H ISO 5542:2006 Milk－Determination of protein content－Amido black dye-binding method(Rountine method)
KS H ISO 5545-2021 Rennet caseins and caseinates —Determination of ash(Reference method)
KS H ISO 5542:2021 Milk — Determination of protein content — Amido black dye-binding method(Rountine method)
KS H ISO 5543:2021 Caseins and caseinates — Determination of fat content — Gravimetric method(Reference method)
KS H ISO 5542-2006(2016) Milk－Determination of protein content－Amido black dye-binding method(Rountine method)

British Standards Institution (BSI)

BS ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
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 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 15948:2015 Cereals. Determination of moisture and protein. Method using Near-Infrared-Spectroscopy in whole kernels
BS EN 15948:2012 Cereals. Determination of moisture and protein. Method using Near-Infrared- Spectroscopy in whole kernels
BS 4289-6:1986 Methods for the analysis of oilseeds-Determination of oil, moisture and volatile matter, and protein by infrared reflectance
BS 6248-10:1986 Caseins and caseinates-Method for determination of fat (gravimetric reference method)
BS 6248-9:1984 Caseins and caseinates-Method for the determination of scorched particles
BS ISO 5550:2006 Caseins and caseinates - Determination of moisture content (Reference method)
BS ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
BS EN 15948:2020 Cereals. Determination of moisture and protein. Method using Near-Infrared Spectroscopy in whole kernels
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 EN ISO 21415-1:2007 Wheat and wheat flour - Gluten content - Determination of wet gluten by a manual 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 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)
BS EN ISO 8968-5:2002 Milk. Determination of nitrogen content. Determination of protein-nitrogen content
18/30374728 DC BS EN 15948. Cereals. Determination of moisture and protein. Method using Near-Infrared-Spectroscopy in whole kernels
BS ISO 5543:2004 Caseins and caseinates - Determination of fat content - Gravimetric method (reference method)

German Institute for Standardization

DIN 10454:1983-03 Determination of protein content of caseins and caseinates; reference method
DIN 10466:2001 Determination of whey protein content in total protein of milk and milk products - Polarographic 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 EN 15948:2020-12 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels; German version EN 15948:2020
DIN 10470:2011 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
DIN EN 15948:2019-01 Draft Document - Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels; German and English version prEN 15948:2018
DIN 10470:1999 Determination of whey protein content and casein content in total protein of milk and milk products - Derivative spectroscopic 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 10464:1994 Determination of casein content, casein and whey protein contents in total protein of milk and milk products - Casein-phosphorus 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 EN 15948:2015-06 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels
DIN 10456:1989-04 Determination of pH of caseins and caseinates; reference method
DIN ISO 5546:2020-12 Caseins and caseinates - Determination of pH (Reference method) (ISO 5546:2010)
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 ISO 5546 E:2020-08 Caseins and caseinates - Determination of pH (Reference method)
DIN 10472:1996 Determination of casein and whey protein contents of milk and milk products - Electrophoretic method
DIN EN 15948:2012-05 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels
DIN ISO 5545:2020-12 Rennet caseins and caseinates - Determination of ash (Reference method) (ISO 5545:2008)
DIN ISO 5550 E:2020-06 Caseins and caseinates - Determination of moisture content (Reference method)
DIN 10453:1983-03 Determination of water content of caseins and caseinates; reference method
DIN 10452:1983-03 Determination of ash of rennet caseins and caseinates; reference method
DIN 10470:2011-07 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
DIN ISO 5550:2020-12 Caseins and caseinates - Determination of moisture content (Reference method) (ISO 5550:2006)
DIN 10470:1999-07 Determining of whey protein content and casein content in total protein of milk and milk products by derivative spectroscopy
DIN ISO 5545 E:2020-06 Rennet caseins and caseinates - Determination of ash (Reference method)
DIN EN 15948 E:2019-01 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels
DIN EN 15948 E:2014-08 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels
DIN 10466:2001-09 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 15948 E:2019 Draft Document - Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels; German and English version prEN 15948:2018
DIN ISO 5546:2020-08 Draft Document - Caseins and caseinates - Determination of pH (Reference method) (ISO 5546:2010); Text in German and English

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

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
OENORM EN 15948-2020 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels
ONORM DIN 10453-1993 Determination of water content of caseins and caseinates - Reference method

Ente Nazionale Italiano di Unificazione

UNI 22632:2002 Oilseeds - Vegetable proteins content - Determination of total proteins (biuret method)
UNI 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)
UNI EN 15948:2021 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels
UNI EN 15948:2015 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels
UNI EN 15948:2012 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels
UNI 22629:2002 Oilseeds - Vegetable proteins content - Determination of soluble proteins (Bradford method)
UNI 22617:1992 Seed and vegetable oils and derived products. Vegetable proteins. In vitro determination of pepsin digestible proteins.
UNI 22604:1992 Seed and vegetable oils and derived products. Vegetable proteins. Determination of crude protein.
UNI EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Determination of protein- nitrogen content
UNI ISO 5543:2018 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)

Gosstandart of Russia

GOST 10846-1991 Grain and products of its processing. Method for determination of protein
GOST 25179-1990 Milk. Methods for determination of protein
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 25011-1981 Meat and meat products. Methods of protein determination
GOST 34551-2019 Сonfectionery. Method for determination of mass fraction of protein
GOST 25011-2017 Meat and meat products. Protein determination methods
GOST ISO 5548-2016 Caseins and caseinates. Photometric method for determining the mass fraction of lactose
GOST 20264.2-1988 Enzyme preparations. Methods for determination of proteolytic activity
GOST ISO 8968-4-2021 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)..
GOST R 51467-1999 Caseins and caseinates. Method for determination of pH
GOST 34454-2018 Dairy products. Determination of protein content by the Kjeldahl method
GOST 31978-2012 Caseins and caseinates. Method for determination of pH
GOST R 51464-1999 Caseins and caseinates. Method for determination of water content
GOST 13496.4-1993 Fodder, mixed fodder and animal feed raw stuff. Methods of nitrogen and crude protein determination
GOST 13496.4-2019 Fodder, мixed fodder and raw mixed fodder. Methods of nitrogen and crude protein determination
GOST R 51466-1999 Caseins. Method for determination of "fixed ash" mass fraction
GOST ISO 5550-2017 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 13979.3-1968 Oilcakes oil-meals. Methods of determination of soluble proteins
GOST R 52993-2008 Caseins and caseinates. Determination of moisture content (Reference method)
GOST R 51454-1999 Caseins and caseinates. Method of determination of nitrate and nitrite contents
GOST R 51469-1999 Caseins and caseinates. Photometric method for determination of lactose content
GOST EN 15948-2022 Cereals. Determination of moisture and protein. Method using near infrared spectroscopy in whole grain
GOST 30131-1996 Oil-cake and ground oil-cake. Determination of moisture, oil and protein by infrared reflectance
GOST R 54662-2011 Cheeses and processed cheeses. Determination of protein mass fraction by the 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 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 28074-1989 Vegetable fodder. Method for the determination of crude protein solubility
GOST R 51463-1999 Rennet caseins and caseinates. Method for determination of ASH content

Lithuanian Standards Office

LST ISO 5549:2001 Caseins and caseinates. Determination of protein content (Reference method) (identical ISO 5549:1978)
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

Danish Standards Foundation

DS/ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
DS/EN 15948:2020 Cereals – Determination of moisture and protein – Method using Near-Infrared Spectroscopy in whole kernels
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)
DANSK DS/EN 15948:2020 Cereals – Determination of moisture and protein – Method using Near-Infrared Spectroscopy in whole kernels
DS 2253:1983 Water quality. Determination of aerobic proteclytic bacteria at 30 centigrades
DS/EN 15948:2012 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels

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 56 0186 Cast.12-1981 Testing methods for beer. art 12. etermination of proteins
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 57 0105 Cast.5-1984 Powdered and condensed milk products. Testing methods. Determination of protein content
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 46 7092-27-1998 Testing methods for feeding stuffs - Part 27: Determination of the protein content

International Dairy Federation (IDF)

IDF 107-2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
IDF 90-2008 Rennet caseins and caseinates - Determination of ash (Reference method)
IDF 78-2006 Caseins and caseinates. Determination of moisture content (Reference method)

Association Francaise de Normalisation

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 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 EN 15948:2020 Cereals - Determination of water and protein content - Method using near-infrared spectroscopy on whole grains
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 V03-768:2012 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels.
NF V04-384*NF ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method).
NF ISO 5546:2010 Caseins and caseinates - Determination of pH (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
NF ISO 5550:2007 Caseins and caseinates - Determination of moisture content (reference method)
NF V04-382:1988 Caseins and caseinates. Determination of fat content. Gravimetric method (reference method).
NF G52-300:1976 Determination of the resistance of white leathers to exposure to ultra-violet light.
NF V03-032:2024 Foodstuffs - Determination of the nitrogen content by the Kjeldahl method and calculation of the protein content
NF V04-382:2008 Caseins and caseinates - Determination of fat content - Gravimetric method (Reference method).
NF V04-216:1985 Milk. Determination of protein content. Amido black dye-binding method (routine method).

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
STAS 6182/44-1977 WIN E Determination of proteins
STAS 6356-1976 MILK AND MILK PRODUCTS Proteic substances determinat ion
STAS SR 13348-1-1996 Tea. Analysis methods. Determination of proteic nitrogen by the Kjeldahl method. Spectrophotometric method

Standards Norway

NS-EN 15948:2020 Cereals — Determination of moisture and protein — Method using Near-Infrared Spectroscopy in whole kernels
NS-EN 15948:2012 Cereals — Determination of moisture and protein — Method using Near-Infrared-Spectroscopy in whole kernels
NS-EN 15948:2015 Cereals — Determination of moisture and protein — Method using Near-Infrared-Spectroscopy in whole kernels
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)
NS 9462-2006 Water quality Determination of UV-absorbance
NS 9462:2006 Water quality — Determination of UV-absorbance

PL-PKN

PN-EN 15948-2021-03 E Cereals -- Determination of moisture and protein -- Method using Near-Infrared Spectroscopy in whole kernels
PN C04288-14-1987 Technical fats Methods of testing Determination of protein content

GCC Standardization Organization

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 5546:2015 Caseins and caseinates -- Determination of pH (Reference method)
GSO ISO 5550:2015 Caseins and caseinates -- Determination of moisture content (Reference method)
GSO ISO 5548:2015 Caseins and caseinates -- Determination of lactose content -- Photometric method
GSO ISO 5543:2015 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)

Bureau of Indian Standards

IS 18836-2024 Milk and Milk Products - Determination of Nitrogen Content - Determination of Protein and Non-Protein Nitrogen Content and True Protein Content Calculation (Reference Method)
IS 11888-2005 Casiens And Caseinated - Determination Of Contents Of Scorched Particles And Of Extraneous Matter
IS 11963-2005 Caeins and Caseinates - Determination of Lactose Content - Photometric Method
IS 11962-2012 Rennet Caseins and Caseinates—— Determination of Ash (Reference Method)
IS 11920-2012 Cassein and Caseinates -Determination of Moisture Content (Reference Method)

Kingdom of Bahrain Testing and Metrology Directorate

BH GSO ISO 8968-4:2022 Milk and milk products — Determination of nitrogen content — Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
BH GSO ISO 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)

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 1871.9:1976 List of methods for examination of waters Nitrogen (albuminoid)

IN-BIS

IS 7481-1974 How to measure protein efficiency ratio (PER)
IS 7219-1973 Methods for determination of protein in food and feed
IS 11963-1987 Photometric method for determination of lactose content in casein and caseinate
IS 11888-1987 Method for determination of charred particle content in casein and caseinates

Spanish Association for Standardization (UNE)

UNE-EN 15948:2015 Determination of moisture and protein content in cereals by near infrared spectroscopy
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)
AENOR UNE 34400-7:1967 Test methods for wheat flour. Determination of protein.
AENOR UNE 77059:2002 Water quality. Determination of aluminum. Colorimetric method with eriochromocyanin R.
UNE 34400-7:1967 TEST METHODS OF WHEAT FLOUR. PROTEIN DETERMINATION
UNE-EN 15948:2021 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels
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)
UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).

European Committee for Standardization (CEN)

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 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)

CU-NC

NC 86-05-1984 Cereals. Flours Determination of Protein

Swedish Institute for Standards

SS-EN 15948:2015 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels
SS-EN ISO 8968-4:2017 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) (ISO 8968-4:2016)
SS-EN 15948:2020 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels

PT-IPQ

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

GOST

GOST R 71208-2024 Grain. Determination of moisture, protein, and gluten by near-infrared spectroscopy

CEN - European Committee for Standardization

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

The Directorate General of Specifications and Metrology (DGSM)

OS GSO ISO 5546:2015 Caseins and caseinates -- Determination of pH (Reference method)
OS GSO ISO 5548:2015 Caseins and caseinates -- Determination of lactose content -- Photometric method
OS GSO ISO 5543:2015 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)
OS GSO ISO 5550:2015 Caseins and caseinates -- Determination of moisture content (Reference method)

American Society for Testing and Materials (ASTM)

ASTM F831-83 Net Protein Ratio (NPR) Test Method
ASTM F830-83 Method for preparing meat, by-products and meat products for determining protein efficiency ratio or net protein ratio

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

CH-SNV

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

IT-UNI

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

AR-IRAM

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