four proteins

four proteins, Total:336 items.

The international standard classification for "four proteins" includes: Man-made fibres , Animal and vegetable fats and oils , Processes in the food industry , Animal feeding stuffs , food products in general , Edible oils and fats. Oilseeds , Fruits. Vegetables , Biology. Botany. Zoology , General methods of tests and analysis for food products , Food additives , Cereals, pulses and derived products , Laboratory medicine .

The Chinese standard classification for "four proteins" includes: Cereal crop and product , Chemical fibre in general , Chemical fibre , Grease and oil processing and products , Livestock and poultry feed and additive , Food sanitation , Oil crop and product , Basic standards and general methods , Food processing and products in general , Other cash crops , Environmental Condition and General Test Method , Cereal crop and forage crop in general , Basic standards and general methods , Basic Subject in general , Basic standard and general method on forestry , Other fermented goods , Grain processing and products , Fire-fighting equipment and devices , Sanitation in general , Medical laboratory equipment , Special foods in general .

Heilongjiang Provincial Standard of the People's Republic of China

DB23/T 2715-2020 High-protein variety high-quality and high-yield simultaneous cultivation technical regulations

Professional Standard - Agriculture

NY/T 3493-2019 Agricultural biomass raw materials. Determination of crude protein
220药典三部-2020 Content Determination Method 0731 Protein Content Determination Method
564药典第一增补本-2010 Protamine Zinc Insulin Injection Revised by Part II
370兽药质量标准2017年版 Volume One of Chemical Drugs Quality Standards for Veterinary Drugs Fourteen-drawing Polyethylene Glycol Bovine Hemoglobin Conjugate
NY/T 4637-2025 Livestock Breeds (Comprehensive Lines) Sichuan White Rabbit
92药典四部-2020 0700 Other Determination Methods 0731 Determination of Protein Content
NY/T 3-1982 Method for determination of crude protein in cereals and beans seeds(Semi - Micro kjeldahl method)
176药典三部-2010 Appendix Ⅵ ⅥB protein assay
601药典第一增补本-2010 Protamine Sulfate Injection Revised by Part II
NY/T 520-2002 Quality protein maize
QB/T 5961-2023 elastin peptide
NY/T 449-2001 Identification purity of maize variety using salting in protein eletrohporesis
SN/T 5071-2018 Determination of 19 kinds of nonprotein nitrogen compounds infoodstuffs of origin for export - LC-MS/MS method
2330药典二部-2010 Appendix VII M Determination of protein content
432药典化学药和生物制品卷-2010 Chapter 6 Medications for the Digestive System Section 4 Pepsin, a Digestive Drug
565药典第一增补本-2010 Trypsin for Injection Revised by Part II
491药典第一增补本-2010 Protamine Recombinant Human Insulin Injection Revised by Part II
179兽药典一部-2015 Text Variety Part I Nine Draws of Pepsin
QB/T 5950-2023 yeast protein

Professional Standard - Textile

FZ/T 50018-2013 Determination of the protein content of the protein viscose fiber
FZ/T 54028-2010 Protein viscose staple fiber
FZ/T 54029-2010 Protein viscose filament yarns

Group Standards of the People's Republic of China

T/ZGKSL 002-2022 General quality requirements for collagens oligopeptides Elastin peptide
T/CHC 1010-2023 Elastin peptide
T/CRIA 19004-2023 Concentrated natural rubber latex low protein latex specifications
T/ESL 22003-2023 Guideline for formulation of laying hens diet with low protein content
T/QGCML 2186-2023 Soy peptone
T/QGCML 2180-2023 Western Blot detection technical specifications
T/JXSYYXH 0004-2023 Sports nutrition food (protein supplement)
T/GDFPT 0010-2020 Technical specifications for the production of lyophilized protein products（Bean products、Collagen protein products、Egg products）
T/CCOA 14-2020 Texturized vegetable protein
T/DYZL 007-2019 Immune Immune milk protein powder—β-Lactoglobulin
T/CIET 350-2024 Quality requirements for collagen casings
T/QGCML 4464-2024 Protein sample storage device
T/CGCC 43-2020 Vegetable protein glaze
T/SZAS 40-2021 Dataset of proteomics
T/NAHIEM 72-2023 Quality requirements for medical collagen products
T/SZBX 017-2021 Protein A affinity chromatographic medium
T/AHFIA 109-2023 β- La in type whey protein powder
T/DYZL 006-2019 Immune milk protein powder—α-Lactalbumin
T/CAAA 017-2019 Camel meat protein powder
T/JAASS 52-2022 Soybean variety Sudou 13 with high protein
T/CEAC 100-2024 Hydrolyzed whey protein
T/AHFIA 105-2023 α-lactalbumin
T/AHFIA 110-2023 β-casein type casein
T/QGCML 1452-2023 Crushed egg whites
T/SHNX 001-2025 Determination of lactoferrin, α-lactalbumin and β-lactoglobulin in raw bovine milk by liquid chromatography-tandem mass spectrometry
T/AHFIA 106-2023 β-lactoglobulin
T/CBPIA 0006-2023 Quality Management Guidelines for Production of Crude Human Urinary Protein
T/ZPP 047-2023 albumin oligopeptide
T/ZJBX 10-2021 Determination of the proportion of protein hydrolysates with relative molecular weight less than 1000u in protein feed
T/AHFIA 107-2023 β-casein
T/CPPC 1084-2024 Casein Peptides
T/DYZL 008-2019 Immune Immune milk protein powder—Immunoglobulin（IgG）
T/ZGKSL 012-2023 Quality requirements for collagen products
T/GDOAA 0007-2022 Albumin peptide nutrient drink
T/CGSS 013-2020 Guides of the diagnosis for monoclonal gammaglobulin in clinical laboratories
T/AHFIA 108-2023 α-lactalbumin type whey protein powder
T/ESL 22004-2023 Guideline for formulation of broilers diet with low protein content
T/GZHPSPSA 005-2021 Hydrolyzed casein peptide powder (enzymatic casein peptide powder)

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

GB/T 44616-2024 Peanut protein powder
GB/T 5009.5-1985 Method for determination of protein in foods
GB/T 5511-1985 Inspection of grain and oilseeds--Methods for determination of crude protein
GB 8856-1988 Method for Determination of Crude Protein in Fruit and Vegetable Products
GB/T 35809-2018 Method for analysis of forestry biomass—Determination of protein content
GB/T 34800-2017 Detection method of activity and impurity of proteinase K
GB/T 5009.5-2003 Determination of protein in foods
GB/T 17811-2025 Determination of pepsin digestibility for animal-derived protein feeds—Filtration method
GB/T 19495.8-2004 Detection of genetically modified plants and derived products-Protein based methods
GB/T 14489.2-1993 Method for determination of crude protein in oilseed
GB 2905-1982 Method for determination of crude protein in cereals and beans seeds (Semi-micro kjeldahls method)
GB/T 15673-1995 Method for determination of crude protein in edible fungi
GB/T 23527-2009 Proteinase preparations
GB/T 17811-1999 Determination of digestibility in animal protein feeds--Pepsin method
GB/T 17811-2008 Determination of pepsin digestibility in animal protein feeds - Filtration method
GB/T 28641-2012 General technical requirement for protein microarray
GB/T 38172-2019 Protein A affinity chromatographic medium
GB/T 34793-2017 Proteinase K
GB/T 14771-1993 Method for determination of protein content in foods
GB/T 38792-2020 Technical specification for cytological evaluation of protein allergenicity
GB/T 22493-2008 Soybean protein flour

Qinghai Provincial Standard of the People's Republic of China

DB63/T 1475-2016 Technical Specifications for the Production of Fine Varieties of Slow Oil Cabbage in April
DB63/T 313-1998 April slow oil cabbage varieties

Hebei Provincial Standard of the People's Republic of China

DB13/T 221-1994 Method for testing the purity of corn hybrids, inbred lines, and wheat seeds - protein electrophoresis
DB13/T 812-2006 Determination of protein solubility in soybeans and their products
DB13/T 1408-2011 High-quality protein corn cultivation technical regulations
DB13/T 1098-2009 Determination of protein in feed
DB13/T 2442-2017 Technical regulations for the purification of avian leukemia in layer breeder farms
DB1310/T 222-2020 Technical regulations for high-yield cultivation of high-protein soybean variety Shidou 11

Anhui Provincial Standard of the People's Republic of China

DB34/T 2498-2015 Determination of Four Kinds of Sweeteners in Liquor by Ultra Performance Liquid Chromatography Tandem Mass Spectrometry
DB34/T 2536-2015 Technical Specifications for Breeding Breeding Goose of Wanxi White Goose
DB3415/T 85-2024 Technical regulations for hatching eggs of Wanxi white geese

Professional Standard - Public Safety Standards

GA/T 52-1993 Quality grading for protein-foam fire extinguishing agent and fluoroprotein-foam fire extinguishing agent

Professional Standard - Commodity Inspection

SN/T 0803.9-1999 Oil bearing materials for import and export—Method for the determination of crude protein
SN/T 3926-2014 Determination of protein content in dairy foods,egg foods and soy foods for export - Coomassie brilliant blue method
SN/T 0800.3-1999 Cereals and feedstuffs for import and export - Method for the determination of crude protein
SN/T 1048-2002 Cereals and feedstuffs for import and export - Identification for barley variety - Method of protein electrophoresis

Agricultural Standard of the People's Republic of China

农业部1068号公告-3-2008 Determination of ten kinds of anabolic androgenic steroids in feeds.High performance liquid chromatography tandem mass spectrometry

Taiwan Provincial Standard of the People's Republic of China

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 2770.5-1986 Method of Test for Feeds : Determination of Crude Protein
CNS 14453-2000 Vegetable protein
CNS 3282-1998 Dried egg white
CNS 14452-2000 Soybean protein
CNS 5035-1986 Method of Test for Crude Protein in Food
CNS 3282-2008 Dried egg white powder
CNS 3449-2007 Method of test for milk and milk products - Determination of protein

Shandong Provincial Standard of the People's Republic of China

DB37/T 3105-2018 Sunflower seed purity protein electrophoresis detection standard
DB37/T 1771-2010 Cabbage Seed Quality Standard
DB37/T 1139-2008 soy protein meat

Henan Provincial Standard of the People's Republic of China

DB41/T 1040-2015 methanol protein
DB4107/T 434-2019 Determination of Four Fluoroquinolones Residues in Eggs by Liquid Chromatography-Tandem Mass Spectrometry

National Metrological Technical Specifications of the People's Republic of China

JJF 2204-2025 Protein Purification Analyzer Calibration Specifications

Professional Standard - Machinery

JB/T 12964-2016 Fast analyzer for the protein in milk and powder milk

Professional Standard - Hygiene

WS/T 404.9-2018 Reference intervals for common clinical biochemistry tests Part 9: Serum C-reactive protein, prealbumin, transferrin,β2一microglobulin

Professional Standard - Medicine

YY/T 1228-2014 Albumin test reagent kit
YY/T 1151-2009 Protein microarray for in vitro diagnostics
YY/T　0032-2004 hemoglobin meter

Professional Standard - Light Industry

QB/T 2832-2006 Sports nutrition food Protein supplement

Jilin Provincial Standard of the People's Republic of China

DB22/T 2002-2014 Protein Rapid Detector in Milk and Milk Powder
DB22/T 294-2020 Method for identification of adulteration of crude protein in corn gluten meal
DB22/T 1818-2013 Determination of urea-formaldehyde polymer in protein feed

Yunnan Provincial Standard of the People's Republic of China

DB53/T 901-2019 Quality classification of white and seedlings

Guangxi Provincial Standard of the People's Republic of China

DB45/T 2262-2021 White and seedling quality requirements

Chongqing Provincial Standard of the People's Republic of China

DB50/T 1539-2023 Atractylodes seed quality grading
DB50/T 1222-2022 Quality classification of white and seedlings

Hubei Provincial Standard of the People's Republic of China

DB42/T 276-2003 Phycocyanin Powder

Inner Mongolia Provincial Standard of the People's Republic of China

DB15/T 3190-2023 Specification for Quality Control of Type A2 β-Casein Raw Milk

Czech Standards Institute (UNMZ)

CSN 86 3131-1964 Human Gamma Globulin
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 0111-1-2002 Testing methods for casein and caseinates - General regulations
CSN 57 0111-3-2002 Testing methods for casein and caseinates - Determination of moisture

Association Francaise de Normalisation

NF V03-944:2021 Protein seeds - Peas, broad beans and fava beans - Determination of impurities
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 V03-950:2014 Oilseed meals - Determination of soluble protein in potassium hydroxide solution
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 V03-722:1990 {durum}. Identification of variety by electrophoresis of proteins in polyacrylamide gel containing sodium docecylsulfate.
NF EN ISO 20418-1:2018 Textiles - Qualitative and quantitative proteomic analysis of certain animal fibers - Part 1: detection of peptides by LC ESI MS with protein reduction
NF V04-389:1985 Caseins and caseinates. Determination of scorched particles content.
NF V04-384*NF ISO 5545:2008 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 8068:1961 Albumin from eggs
JIS K 0604:2000 Proteins -- Monoclonal IgG -- Methods for quantitative analysis
JIS K 8234:1994 Casein (from Milk)
JIS T 4205:1979 Haemometers
JIS K 8234:1961(1994) Casein (Milks)

Society of Automotive Engineers (SAE)

SAE AMS1800-2011 FOAM, FIRE EXTINGUISHING LIQUID Protein and Fluoroprotein
SAE AMS1800B Foam, Fire Extinguishing Liquid Protein and Fluoroprotein
SAE AMS1800 Foam, Fire Extinguishing Liquid Protein and Fluoroprotein
SAE AMS1800A Foam, Fire Extinguishing Liquid Protein and Fluoroprotein
SAE AMS1800A-1994 Foam@ Fire Extinguishing Liquid Protein and Fluoroprotein
SAE AMS1800B-2001 Foam@ Fire Extinguishing Liquid Protein and Fluoroprotein

Spanish Association for Standardization (UNE)

AENOR UNE 23054:1971 BLOOD TRANSFUSION. GAMMAGLOBULIN
UNE 64102:1977 MIXED FEEDS AND RAW MATERIALS. TOTAL PROTEIN (RAW PROTEIN)
UNE-EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016)
AENOR UNE 23053:1971 BLOOD TRANSFUSION. ALBUMIN
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 34-871-1986 Processed cheese. Determination of protein content
UNE 34081:1975 ANALYSIS METHODS FOR CHOCOLATES. MILK PROTEINS.
AENOR UNE 34400-7:1967 Test methods for wheat flour. Determination of protein.
UNE 34871:1986 PROCESSED CHEESE PRODUCTS. DETERMINATION OF THE PROTEIN CONTENT.
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

Ente Nazionale Italiano di Unificazione

UNI 22609:1992 Seed and vegetable oils and derived products. Vegetable proteins. Determination of total residue hexane in protein substances.
UNI 22617:1992 Seed and vegetable oils and derived products. Vegetable proteins. In vitro determination of pepsin digestible proteins.
UNI 22632:2002 Oilseeds - Vegetable proteins content - Determination of total proteins (biuret method)
UNI 7163:1979 Ready-mix concrete
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 10414:1994 Soft wheat and durum wheat. Definition of varietal purity by electrophoresis of proteins. Rapid method.
UNI 22604:1992 Seed and vegetable oils and derived products. Vegetable proteins. Determination of crude protein.
UNI 22605:1992 Seed and vegetable oils and derived products. Vegetable proteins. Determination of fatty substances.
UNI 22606:1992 Seed and vegetable oils and derived products. Vegetable proteins. Determination of crude fibre.
UNI 22629:2002 Oilseeds - Vegetable proteins content - Determination of soluble proteins (Bradford method)
UNI 22618:2022 Oleaginous seeds and fruits and derivatives - Vegetable protein substances Sample preparation for tryptophan aminoacid determination
UNI 22620:2022 Oleaginous seeds and fruits and derivatives - Vegetable protein substances- Determination of the tryptophan amino acid content by ion exchange chromatography.
EC 1-2023 UNI 22620:2022 Oleaginous seeds and fruits and derivatives - Vegetable protein substances- Determination of the tryptophan amino acid content by ion exchange chromatography.
UNI EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Determination of protein- nitrogen content

International Organization for Standardization (ISO)

ISO 5549:1978 Caseins and caseinates; Determination of protein content (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 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl 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 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 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
ISO 5546:1979 Caseins and caseinates; Determination of pH (Reference method)
ISO 5739:1983 Caseins and caseinates; Determination of scorched particles content
ISO 5550:2006 Caseins and caseinates - Determination of moisture content (Reference method)

Korean Agency for Technology and Standards (KATS)

KS H ISO 5549:2006 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 5549-2021 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 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 1204-2021 Testing method for crude proteins content
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 5546:2021 Caseins and caseinates — Determination of pH(Reference method)
KS H ISO 5550-2007(2021) Caseins and caseinates－Determination of moisture content(Reference method)
KS H ISO 5739-2021 Caseins and caseinates — Determination of scorched particles content
KS H ISO 5546-2006(2016) Caseins and caseinates－Determination of pH(Reference method)
KS H ISO 5546-2021 Caseins and caseinates — Determination of pH(Reference method)

German Institute for Standardization

DIN 10454:1983-03 Determination of protein content of caseins and caseinates; reference 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 10466:2001 Determination of whey protein content in total protein of milk and milk products - Polarographic method
DIN 10470:2011 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
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 EN ISO 8968-4:2016-09 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016); German version EN ISO 8968-4:2016
DIN EN ISO 8968-4 E:2013-09 Determination of nitrogen content of milk and milk products Part 4: Determination of protein and non-protein nitrogen content and calculation of pure protein content (Reference Method) (Draft)
DIN EN ISO 14244 E:2016-02 Determination of soluble protein in potassium hydroxide solution of oil seed residues (draft)
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 5544:2020 Caseins - Determination of \
DIN 10472:1996 Determination of casein and whey protein contents of milk and milk products - Electrophoretic 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 10470:2011-07 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
DIN 10456:1989-04 Determination of pH of caseins and caseinates; reference method
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 5546 E:2020-08 Caseins and caseinates - Determination of pH (Reference method)

National Standardisation Body (ASRO)

STAS 2213/17-1976 SWEETS Determination of total proteinic content and milk proteinic substance content
STAS 21/6-1973 OILSEED RESIDUES Determination of protein of protein brut content
STAS 6182/44-1977 WIN E Determination of proteins
STAS 6356-1976 MILK AND MILK PRODUCTS Proteic substances determinat ion
STAS SR 4895-6-1997 Tobacco and tobacco prodocts Determination of total proteins content (albumines)

Austrian Standards

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

Lithuanian Standards Office

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

Gosstandart of Russia

GOST R 57476-2017 Bird food protein. Specifications
GOST R 57475-2017 Dried egg protein after extraction lysozyme. Specifications
GOST R 51470-1999 Caseins and caseinates. Method for determination of protein content
GOST 10846-1991 Grain and products of its processing. Method for determination of protein
GOST 25179-1990 Milk. Methods for determination of protein
GOST ISO 5548-2016 Caseins and caseinates. Photometric method for determining the mass fraction of lactose
GOST 33956-2016 Albumine and pastes from albumin. Specifications
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 34621-2019 Foods for special dietary uses. Dry protein, protein-carbohydrate and carbohydrate-protein drinks for sports nutrition. General specifications
GOST R 53493-2009 Albumin dairy. Specifications
GOST 34551-2019 Сonfectionery. Method for determination of mass fraction of protein
GOST 25011-1981 Meat and meat products. Methods of protein determination
GOST 25179-2014 Milk and milk products. Method for determination of protein
GOST 20264.2-1988 Enzyme preparations. Methods for determination of proteolytic activity
GOST 25011-2017 Meat and meat products. Protein determination methods
GOST R 51454-1999 Caseins and caseinates. Method of determination of nitrate and nitrite contents
GOST R 51467-1999 Caseins and caseinates. Method for determination of pH
GOST 31978-2012 Caseins and caseinates. Method for determination of pH
GOST 31689-2012 Casein. Specifications
GOST R 53667-2009 Casein. Specifications
GOST R 51464-1999 Caseins and caseinates. Method for determination of water content

Bureau of Indian Standards

IS 9095-1979 Specifications for protein gummies
IS 7482-1989 Protein Drinks—Specifications
IS 11888-2005 Casiens And Caseinated - Determination Of Contents Of Scorched Particles And Of Extraneous Matter
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 1167-1965 Casein specifications (food quality)
IS 8665-1977 Specification for protein fortified bread
IS 13650-1993 Glass containers for proteinized food
IS 7487-1986 Specifications for protein-rich cookies
IS 6557-1972 Protein Flakes Specifications Not Food Quality
IS 2006-1988 Methods for the quantitative chemical analysis of binary mixtures of protein fibers and certain other non-protein fibers
IS 7481-1974 How to measure protein efficiency ratio (PER)
IS 9038-1979 Specification for Renewable Protein Beverages and Food Products
IS 9487-1980 Specification for "ready-to-eat" protein-rich puffed foods
IS 7219-1973 Methods for determination of protein in food and feed

Magyar Szabványügyi Testület

MSZ 21340-1980 animal protein feed
MNOSZ 448-28.lap-1955 Water testing - amino acid protein testing
MSZ 1183-1979 protein milk powder
MNOSZ 17619-1954 Definition of the concept of protein content in preserved foods
MSZ KGST 1422-1978 Determination of protein content of phosphorus and phosphorus inorganic mixtures

Standard Association of Australia （SAA）

AS 1871.9:1976 List of methods for examination of waters Nitrogen (albuminoid)
AS ISO 8968.4:2021 Milk and milk products — Determination of nitrogen content, Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
AS K89:1953 Protein adhesives for plywood
AS 2300.10.3 SUPP 2:1991 Caseins, caseinates and coprecipitates - Assessment of colour of caseins, Part 10.3: Colour standards for untreated rennet casein (Supplement to AS 2300.10.3-1991)
AS N60:1970 Methods for the sampling and analysis of acid and rennet caseins

Indonesia Standards

SNI 14-1038-1989 Kertas dan karton, Cara uji kualitatip kasein dan protein kedelai
SNI 8074:2022 Flour extract of albumin from snakehead fish (Channa striata) as a source of albumin - Quality requirements and processing
SNI 08-0987-1989 Cara identifikasi zat warna pada serat protein
SNI 8076-2014 Kolagen kasar dari sisik ikan - Syarat mutu dan pengolahan
SNI 14-1037-1989 Kertas dan karton, Cara uji lapisan salut berperekat protein

British Standards Institution (BSI)

BS EN ISO 8968-4:2016 Milk and milk products. Determination of nitrogen content. Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
BS ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
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 14244:2014 Oilseed meals. Determination of soluble proteins in potassium hydroxide solution
BS 4289-6:1986 Methods for the analysis of oilseeds-Determination of oil, moisture and volatile matter, and protein by infrared reflectance
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 21415-3:2007 Wheat and wheat flour - Gluten content - Determination of dry gluten from wet gluten by an oven drying method
BS 3985:1978 Specification for cyanmethaemoglobin (haemiglobincyanide) solution for photometric haemoglobinometry
BS ISO 15323:2002 Dried milk protein products. Determination of nitrogen solubility index
25/30503150 DC Draft BS EN ISO 25353 Textiles - Qualitative analysis proteomic analysis of protein fibres from leather - Peptide detection using MALDI-TOF MS
BS 3985:2003(2008) Haemiglobincyanide (cyanmethaemoglobin) preparation as a standard for spectrometric haemoglobinometry

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 1374:2022 Edible Casein And Caseinates
BH GSO ISO 24329:2024 Low-protein natural rubber latex concentrate — Specification
BH GSO ISO 5546:2016 Caseins and caseinates -- Determination of pH (Reference method)

GCC Standardization Organization

GSO 2101:2010 Protein-Rich concentrated Nutrient Supplementary foods
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 1374:2021 Edible Casein And Caseinates
GSO ISO 5546:2015 Caseins and caseinates -- Determination of pH (Reference method)

Cuban Institute of Standards and Metrology

NC 86-05-1984 Cereals. Flours Determination of Protein
NC 26-75-17-1985 Drugs. Protamine Sulphate, Injection Quality Specifications
NC 74-28-1985 Cattle-Raising. Animal Feeding. Determination of Rough Protein

Danish Standards Foundation

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

BELST

STB 1759-2007 Sugar-beet seeds. Determination of identity hybrid and rating оf sort by electrophoretic method analyses of 11S-globulins`s reserve proteins
STB 1150-2013 Protein-vitamin-mineral additives. General specifications

Standards Norway

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)

International Dairy Federation (IDF)

IDF 107-2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter

American Society for Testing and Materials (ASTM)

ASTM F831-83 Net Protein Ratio (NPR) Test Method
ASTM D7427-16 Standard Test Method for Immunological Measurement of Four Principal Allergenic Proteins (Hev b 1, 3, 5 and 6.02) in Hevea Natural Rubber and Its Products Derived from Latex
ASTM D7427-08 Standard Test Method for Immunological Measurement of Four Principal Allergenic Proteins (Hev b 1, 3, 5 and 6.02) in Natural Rubber and Its Products Derived from Latex
ASTM D7427-16(2021) Standard Test Method for Immunological Measurement of Four Principal Allergenic Proteins (Hev b 1, 3, 5 and 6.02) in Hevea Natural Rubber and Its Products Derived from Latex
ASTM D7818-12 Standard Test Method for Enumeration of Proteolytic Bacteria in Fresh (Uncured) Hides and Skins
ASTM D7427-08e2 Standard Test Method for Immunological Measurement of Four Principal Allergenic Proteins (Hev b 1, 3, 5 and 6.02) in Natural Rubber and Its Products Derived from Latex
ASTM F830-83 Method for preparing meat, by-products and meat products for determining protein efficiency ratio or net protein ratio

Swedish Institute for Standards

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)

European Committee for Standardization (CEN)

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

South African Bureau of Standard

CKS 458-2008 Protein, vitamin, mineral (PVM) supplementary food mixture
SANS 1159:2003 The production of pre-cooked frozen foods containing protein

Polski Komitet Normalizacyjny (PKN)

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

Clinical and Laboratory Standards Institute

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

COMMISSION FOR THE STANDARDS, METROLOGY AND QUALITY OF VIETNAM (STAMEQ)

TCVN 5461-1991 Synthetic detergents.Determination of proteinous activity

Argentine Institute of Standardization

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

Swiss Association for Standardization (SNV)

SN 210 100-1987 Technical drawings - Sizes and layout of drawing sheets

American Water Works Association (AWWA)

AWWA WQTC65752 Protein Assay in Drinking Water and Reclaimed Water

The Directorate General of Specifications and Metrology (DGSM)

OS GSO 2101:2010 Protein-Rich concentrated Nutrient Supplementary foods
OS GSO ISO 5546:2015 Caseins and caseinates -- Determination of pH (Reference method)

Portuguese Institute of Quality

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