protein immobilization

protein immobilization, Total:359 items.

The international standard classification for "protein immobilization" includes: Animal feeding stuffs , food products in general , Edible oils and fats. Oilseeds , Fruits. Vegetables , Milk and processed milk products , Biology. Botany. Zoology , Milk and milk products in general , General methods of tests and analysis for food products , Man-made fibres , Medical Sciences and health care facilities in general , Laboratory medicine , Tobacco, tobacco products and related equipment .

The Chinese standard classification for "protein immobilization" includes: Livestock and poultry feed and additive , Food sanitation , Oil crop and product , Basic standards and general methods , Medical apparatus and devices in general , Other cash crops , Melon, fruit and vegetable planting and product , Food processing and products in general , Children foods , Basic standard and general method on forestry , Basic Subject in general , Cereal crop and product , Milk and dairy products , Chemical fibre in general , Chemical fibre , Sanitation in general , Medical laboratory equipment , Tobacco , Fire-fighting equipment and devices .

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

GB/T 17811-2008 Determination of pepsin digestibility in animal protein feeds - Filtration method
GB/T 14771-1993 Method for determination of protein content in foods
GB/T 15673-1995 Method for determination of crude protein in edible fungi
GB 5009.5-2025 National Food Safety Standard Determination of Protein in Food
GB/T 5009.5-2003 Determination of protein in foods
GB/T 38163-2019 Determination of allergenic protein—LC-MS/MS method
GB/T 42216.2-2022 Molecular in vitro diagnostic examinations—Specifications for pre-examination processes for formalin-fixed and paraffin-embedded(FFPE) tissue—Part 2:Isolated proteins
GB/T 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 14489.2-2008 Inspection of grain and oils—Determination of crude protein in oilseeds
GB/T 14489.2-1993 Method for determination of crude protein in oilseed
GB/T 38172-2019 Protein A affinity chromatographic medium
GB/T 35809-2018 Method for analysis of forestry biomass—Determination of protein content
GB/T 5413.1-1997 Milk powder and formula foods for infant and young children-Determination of protein
GB 8856-1988 Method for Determination of Crude Protein in Fruit and Vegetable Products
GB/T 5511-1985 Inspection of grain and oilseeds--Methods for determination of crude protein
GB/T 22260-2023 Determination of anabolic steroids in feeds—Liquid chromatography-tandem mass spectrometry
GB/T 17811-1999 Determination of digestibility in animal protein feeds--Pepsin method

Hebei Provincial Standard of the People's Republic of China

DB13/T 812-2006 Determination of protein solubility in soybeans and their products
DB13/T 1098-2009 Determination of protein in feed

Group Standards of the People's Republic of China

T/SHNX 001-2025 Determination of lactoferrin, α-lactalbumin and β-lactoglobulin in raw bovine milk by liquid chromatography-tandem mass spectrometry
T/ZJBX 10-2021 Determination of the proportion of protein hydrolysates with relative molecular weight less than 1000u in protein feed
T/SZAS 40-2021 Dataset of proteomics
T/ZGKSL 012-2023 Quality requirements for collagen products
T/SZBX 017-2021 Protein A affinity chromatographic medium
T/ESL 22003-2023 Guideline for formulation of laying hens diet with low protein content
T/QGCML 4464-2024 Protein sample storage device
T/CIET 350-2024 Quality requirements for collagen casings

Professional Standard - Agriculture

2330药典二部-2010 Appendix VII M Determination of protein content
NY/T 3493-2019 Agricultural biomass raw materials. Determination of crude protein
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
NY/T 520-2002 Quality protein maize
NY/T 1678-2008 Determination of protein in milk and dairy products Biuret spectrophotometry method
176药典三部-2010 Appendix Ⅵ ⅥB protein assay
NY/T 2659-2014 Rapid determination of fat,protein,lactose and total solids in milk—Infrared spectrometry
92药典四部-2020 0700 Other Determination Methods 0731 Determination of Protein Content
201药典三部-2015 Content Determination Method 0731 General Principles of Protein Content Determination Method 50
NY/T 3298-2018 Determination of crude protein content in vegetable oilseeds—Near-infrared spectroscopy method

未注明发布机构

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

Taiwan Provincial Standard of the People's Republic of China

CNS 3449-1988 Methods of Test for Milk and Milk Products: The Quantitive Analysis of Protein
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

Professional Standard - Textile

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

Professional Standard - Hygiene

WS/T 410-2013 Mearuements of serum high density lipoprotein cholesterol

Jilin Provincial Standard of the People's Republic of China

DB22/T 1818-2013 Determination of urea-formaldehyde polymer in protein feed

Professional Standard - Medicine

YY/T 1253-2015 Low density lipoprotein(LDL) cholesterol assay kit
YY/T 1228-2014 Albumin test reagent kit
YY/T 1254-2015 High density lipoprotein(HDL)cholesterol assay kit

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 - Tobacco

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

Professional Standard - Public Safety Standards

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

National Health Commission of the People's Republic of China

GB 5009.5-2016 National Food Safety Standard — Determination of Protein in Foods
GB 5009.5-2010 Determination of Protein in Foods

Professional Standard - Energy

NB/T 34057.8-2020 Determination of chemical composition of lignocellulosic feedstocks Part 8: Derermination of protein

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 5544:2008 | IDF 89:2008 Caseins — Determination of " fixed ash " (Reference method)
ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
ISO 5544:1978 Caseins; Determination of " fixed ash " (Reference method)
ISO 5544:2008|IDF 89:2008 Determination of "fixed ash" of casein (reference method)
ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
ISO 5544:2008 Caseins - Determination of " fixed ash " (Reference method)
ISO 5739:2003|IDF 107:2003 Determination of casein and caseinate coke particles and foreign matter content
ISO 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
ISO 15323:2002 Dried milk protein products - Determination of nitrogen solubility index
ISO 15323:2002|IDF173:2002 Determination of nitrogen solubility rate of milk powder protein products
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)
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 5550:2006|IDF 78:2006 Caseins and caseinates — Determination of moisture content (Reference 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 | 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 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)
ISO 5548:1980 Caseins and caseinates; Determination of lactose content; Photometric 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 20418-1:2018 Textiles - Qualitative and quantitative proteomic analysis of some animal hair fibres - Part 1: Peptide detection using LC-ESI-MS with protein reduction
ISO 8968-5:2001 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
ISO 8968-5:2001|IDF 20-5:2001 Determination of milk nitrogen content Part 5: Determination of protein nitrogen content
ISO 5545:2008 | IDF 90:2008 Rennet caseins and caseinates — Determination of ash (Reference method)
ISO 8968-5:2001 | IDF 20-5:2001 Milk — Determination of nitrogen content — Part 5: Determination of protein-nitrogen content
ISO 8968-4:2001 Milk - Determination of nitrogen content - Part 4: Determination of non-protein-nitrogen content
ISO 8968-4:2001|IDF 20-4:2001 Determination of milk nitrogen content Part 4: Determination of non-protein nitrogen content
ISO 5739:2003 | IDF 107:2003 Caseins and caseinates — Determination of contents of scorched particles and of extraneous matter

Korean Agency for Technology and Standards (KATS)

KS H ISO 5549:2021 Caseins and caseinates — Determination of protein content(Reference method)
KS H ISO 5549-2021 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 5549-2006(2016) Caseins and caseinates－Determination of protein content(Reference method)
KS H ISO 5544:2006 Caseins－Determination of “fixed ash”(Reference method)
KS H ISO 5544:2021 Caseins — Determination of “fixed ash”(Reference method)
KS H ISO 5544-2021 Caseins — Determination of “fixed ash”(Reference method)
KS H ISO 5544-2006(2016) Caseins－Determination of “fixed ash”(Reference method)
KS H ISO 5739:2006 Caseins and caseinates－Determination of scorched particles content
KS J 4205-2018 Methods for quantitative analysis of immobilized trypsin
KS J 4205-2023 Methods for quantitative analysis of immobilized trypsin
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 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 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 5546:2021 Caseins and caseinates — Determination of pH(Reference method)
KS H ISO 5546-2006(2016) Caseins and caseinates－Determination of pH(Reference method)
KS H 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 K ISO 20418-3-2023 Textiles — Qualitative and quantitative proteomic analysis of some animal hair fibres — Part 3: Peptide detection using LC-MS without protein reduction
KS H ISO 5550:2007 Caseins and caseinates－Determination of moisture content(Reference method)
KS J 4201-2008 Methods for quantitative analysis of serum albumin
KS H 1204-2021 Testing method for crude proteins content
KS H ISO 5548:2006 Caseins and caseinates－Determination of lactose content－Photometric method
KS H ISO 5548:2020 Caseins and caseinates－Determination of lactose content－Photometric method
KS H ISO 5545:2021 Rennet caseins and caseinates —Determination of ash(Reference method)
KS H ISO 5550-2021 Caseins and caseinates－Determination of moisture content(Reference method)
KS H ISO 5545:2006 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(2016) Rennet caseins and caseinates－Determination of ash(Reference method)
KS H ISO 5545-2021 Rennet caseins and caseinates —Determination of ash(Reference method)
KS K ISO 20418-1:2022 Textiles — Qualitative and quantitative proteomic analysis of some animal hair fibres — Part 1: Peptide detection using LC-ESI-MS with protein reduction
KS K ISO 20418-1-2022 Textiles — Qualitative and quantitative proteomic analysis of some animal hair fibres — Part 1: Peptide detection using LC-ESI-MS with protein reduction
KS J 4201-2023 Methods for quantitative analysis of serum albumin
KS H ISO 5543-2006(2016) Caseins and caseinates－Determination of fat content－Gravimetric method(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

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 EN ISO 8968-4:2016-09 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016); German version EN ISO 8968-4:2016
DIN ISO 5544:2020-12 Caseins - Determination of "fixed ash" (Reference method) (ISO 5544:2008)
DIN 10470:2011 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
DIN 10451:1983-03 Determination of "fixed ash" of caseins; reference method
DIN ISO 5544 E:2020-06 Caseins - Determination of "fixed ash" (Reference 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 10470:1999 Determination of whey protein content and casein content in total protein of milk and milk products - Derivative spectroscopic 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 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 10456:1989-04 Determination of pH of caseins and caseinates; reference 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 ISO 5546 E:2020-08 Caseins and caseinates - Determination of pH (Reference method)
DIN ISO 5544:2020-06 Draft Document - Caseins - Determination of "fixed ash" (Reference method) (ISO 5544:2008); Text in German and English
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 E:2020-06 Caseins and caseinates - Determination of moisture content (Reference method)
DIN 10472:1996 Determination of casein and whey protein contents of milk and milk products - Electrophoretic 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 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 ISO 5550:2020-12 Caseins and caseinates - Determination of moisture content (Reference method) (ISO 5550:2006)
DIN ISO 5545 E:2020-06 Rennet caseins and caseinates - Determination of ash (Reference method)
DIN 10466:2001-09 Determination of whey protein content in total protein of milk and milk products - Polarographic method
DIN EN ISO 21415-4:2007 Wheat and wheat flour - Gluten content - Part 4: Determination of dry gluten from wet gluten by a rapid drying method (ISO 21415-4:2006); German version EN ISO 21415-4:2007
DIN 10470 E:2010 Draft Document - Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
DIN ISO 5546:2020-12 Caseins and caseinates - Determination of pH (Reference method) (ISO 5546:2010)
DIN EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content (ISO 8968-5:2001); German version EN ISO 8968-5:2001
DIN 10470 E:2010-05 Draft Document - Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
DIN ISO 5546:2020 Caseins and caseinates - Determination of pH (Reference method) (ISO 5546:2010)

RO-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 6514-1975 FISH AND FISH PRODUCTS Determination of total proteic matters
STAS SR 4895-6-1997 Tobacco and tobacco prodocts Determination of total proteins content (albumines)

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

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 51466-1999 Caseins. Method for determination of "fixed ash" mass fraction
GOST 25179-1990 Milk. Methods for determination of protein
GOST R 51470-1999 Caseins and caseinates. Method for determination of protein content
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 10846-1991 Grain and products of its processing. Method for determination of protein
GOST ISO 5548-2016 Caseins and caseinates. Photometric method for determining the mass fraction of lactose
GOST 25179-2014 Milk and milk products. Method for determination of protein
GOST 34551-2019 Сonfectionery. Method for determination of mass fraction of protein
GOST R 51467-1999 Caseins and caseinates. Method for determination of pH
GOST R 57476-2017 Bird food protein. Specifications
GOST R 57475-2017 Dried egg protein after extraction lysozyme. Specifications
GOST R 51464-1999 Caseins and caseinates. Method for determination of water content
GOST 25011-1981 Meat and meat products. Methods of protein determination
GOST R 51454-1999 Caseins and caseinates. Method of determination of nitrate and nitrite contents
GOST R 51465-1999 Caseins and caseinates. Determination of scorched particles content
GOST 20264.2-1988 Enzyme preparations. Methods for determination of proteolytic activity
GOST 25011-2017 Meat and meat products. Protein determination methods
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 13979.3-1968 Oilcakes oil-meals. Methods of determination of soluble proteins
GOST 33956-2016 Albumine and pastes from albumin. Specifications
GOST 13496.4-2019 Fodder, мixed fodder and raw mixed fodder. 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 34454-2018 Dairy products. Determination of protein content by the Kjeldahl method
GOST 31978-2012 Caseins and caseinates. Method for determination of pH
GOST 34621-2019 Foods for special dietary uses. Dry protein, protein-carbohydrate and carbohydrate-protein drinks for sports nutrition. General specifications
GOST R 51469-1999 Caseins and caseinates. Photometric method for determination of lactose content
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 51463-1999 Rennet caseins and caseinates. Method for determination of ASH content
GOST ISO 5550-2017 Caseins and caseinates. Determination of moisture content (Reference method)
GOST 28074-1989 Vegetable fodder. Method for the determination of crude protein solubility
GOST R 53951-2010 Milk and milk-containing products. Determination of mass part of protein by Kjeldahl 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 22604:1992 Seed and vegetable oils and derived products. Vegetable proteins. Determination of crude protein.
UNI 22629:2002 Oilseeds - Vegetable proteins content - Determination of soluble proteins (Bradford method)
UNI 22609:1992 Seed and vegetable oils and derived products. Vegetable proteins. Determination of total residue hexane in protein substances.
UNI 10689:1997 Durum wheat cariopsis. Mechanical determination of the dry gluten content.
UNI 7163:1979 Ready-mix concrete
UNI EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Determination of protein- nitrogen content
UNI 22617:1992 Seed and vegetable oils and derived products. Vegetable proteins. In vitro determination of pepsin digestible proteins.
UNI EN ISO 14244:2016 Oilseed meals - Determination of soluble proteins in potassium hydroxide solution
UNI EN ISO 20418-1:2018 Textiles - Qualitative and quantitative proteomic analysis of some animal hair fibres - Part 1: Peptide detection using LC-ESI-MS with protein reduction
UNI EN ISO 20418-3:2020 Textiles - Qualitative and quantitative proteomic analysis of some animal hair fibres - Part 3: Peptide detection using LC-MS without protein reduction

Bureau of Indian Standards

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/ISO 11919-2012 Caseins —— Determination of "Fixed Ash"Â (Reference Method)
IS 11919-1987 Method For Determination Of Fixed Ash In Caseins (reference Method)
IS 11963-2005 Caeins and Caseinates - Determination of Lactose Content - Photometric Method
IS 11920-2012 Cassein 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 V04-391*NF ISO 5544:2008 Caseins - Determination of "fixed ash" (Reference method)
NF V04-391:1985 Caseins. Determination of "fixes ash" (reference method).
NF V04-221-4*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 ISO 5544:2008 Caseins - Determination of "fixed ashes" (Reference method)
NF V03-944:2021 Protein seeds - Peas, broad beans and fava beans - Determination of impurities
NF EN ISO 20418-3:2020 Textiles - Qualitative and quantitative proteomic analysis of certain animal fibers - Part 3: detection of peptides by LC-MS without protein reduction
NF V04-384*NF ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method).
NF V04-389:1985 Caseins and caseinates. Determination of scorched particles content.
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 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 V18-100:1977 Animal feeding stuffs.determination of nitrogen for the calcultion of crude protein content.
NF G06-007-3*NF EN ISO 20418-3:2020 Textiles - Qualitative and quantitative proteomic analysis of some animal hair fibres - Part 3 : peptide detection using LC-MS without protein reduction
NF V04-382:1988 Caseins and caseinates. Determination of fat content. Gravimetric method (reference method).
NF V04-221-5:2002 Milk - Determination of nitrogen content - Part 5 : determination of protein-nitrogen content.
NF ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)

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 5544:2015 Caseins -- Determination of " fixed ash " (Reference method)
GSO 2101:2010 Protein-Rich concentrated Nutrient Supplementary foods
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 8968-5:2014 Milk -- Determination of nitrogen content -- Part 5: Determination of protein-nitrogen content
GSO ISO 5739:2015 Caseins and caseinates -- Determination of contents of scorched particles and of extraneous matter

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 0111-7-2002 Testing methods for casein and caseinates - Determination of ash
CSN 57 0111-12-2002 Testing methods for casein and caseinates - Determination of pH
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

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 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 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
BS ISO 5544:2008 Caseins - Determination of "fixed ash" (Reference method)
BS EN ISO 8968-5:2002 Milk. Determination of nitrogen content. Determination of protein-nitrogen content
BS ISO 15323:2002 Dried milk protein products. Determination of nitrogen solubility index
BS EN ISO 21415-4:2007 Wheat and wheat flour - Gluten content - Determination of dry gluten from wet gluten by a rapid drying method
BS EN ISO 8968-4:2002 Milk. Determination of nitrogen content. Determination of non-protein nitrogen content
BS ISO 5550:2006 Caseins and caseinates - Determination of moisture content (Reference method)
BS 6248-9:1984 Caseins and caseinates-Method for the determination of scorched particles
BS ISO 5546:2010 Caseins and caseinates - Determination of pH (Reference method)
BS ISO 5548:2004 Caseins and caseinates - Determination of lactose content - Photometric methods
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 3985:2003(2008) Haemiglobincyanide (cyanmethaemoglobin) preparation as a standard for spectrometric haemoglobinometry
BS ISO 5545:2008 Rennet caseins and caseinates - Determination of ash (Reference method)
BS EN ISO 20418-1:2018 Textiles. Qualitative and quantitative proteomic analysis of some animal hair fibres - Peptide detection using LC-ESI-MS with protein reduction
BS EN ISO 20418-3:2020 Textiles. Qualitative and quantitative proteomic analysis of some animal hair fibres - Peptide detection using LC-MS without protein reduction
BS 3985:1978 Specification for cyanmethaemoglobin (haemiglobincyanide) solution for photometric haemoglobinometry
BS 6248-10:1986 Caseins and caseinates-Method for determination of fat (gravimetric 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 5739:2016 Caseins and caseinates -- Determination of contents of scorched particles and of extraneous matter
BH GSO ISO 5543:2016 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)

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 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
DANSK DS/ISO 20418-3:2020 Textiles – Qualitative and quantitative proteomic analysis of some animal hair fibres – Part 3: Peptide detection using LC-MS without protein reduction
DANSK DS/ISO 5739:2003 Caseins and caseinates - Determination of contents of scorched particles and of extraneous matter
DS/EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content

Standard Association of Australia （SAA）

AS ISO 8968.4:2021 Milk and milk products — Determination of nitrogen content, Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
AS 1871.9:1976 List of methods for examination of waters Nitrogen (albuminoid)

Spanish Association for Standardization (UNE)

UNE-EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016)
UNE 64102:1977 MIXED FEEDS AND RAW MATERIALS. TOTAL PROTEIN (RAW PROTEIN)
UNE 34-871-1986 Processed cheese. Determination of protein content
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)
AENOR UNE 34400-7:1967 Test methods for wheat flour. Determination of protein.
UNE 34400-7:1967 TEST METHODS OF WHEAT FLOUR. PROTEIN DETERMINATION
AENOR UNE 77059:2002 Water quality. Determination of aluminum. Colorimetric method with eriochromocyanin R.
UNE 34871:1986 PROCESSED CHEESE PRODUCTS. DETERMINATION OF THE PROTEIN CONTENT.
UNE 64011:1970 MIXED FEEDS AND RAW MATERIALS. QUANTITATIVE DETERMINATION OF THE RAW PROTEIN
UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
UNE 34081:1975 ANALYSIS METHODS FOR CHOCOLATES. MILK PROTEINS.

Society of Automotive Engineers (SAE)

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

American Society for Testing and Materials (ASTM)

ASTM D7818-12 Standard Test Method for Enumeration of Proteolytic Bacteria in Fresh (Uncured) Hides and Skins
ASTM F830-83 Method for preparing meat, by-products and meat products for determining protein efficiency ratio or net protein ratio

CU-NC

NC 86-05-1984 Cereals. Flours Determination of Protein
NC 74-28-1985 Cattle-Raising. Animal Feeding. Determination of Rough Protein

International Dairy Federation (IDF)

IDF 89-2008 Caseins - Determination of "fixed ash" (Reference method)
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)
IDF 20-5-2001 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content

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)

IN-BIS

IS 7481-1974 How to measure protein efficiency ratio (PER)
IS 2006-1988 Methods for the quantitative chemical analysis of binary mixtures of protein fibers and certain other non-protein fibers
IS 7482-1989 Protein Drinks—Specifications
IS 7219-1973 Methods for determination of protein in food and feed
IS 9095-1979 Specifications for protein gummies
IS 7487-1986 Specifications for protein-rich cookies
IS 1167-1965 Casein specifications (food quality)
IS 8665-1977 Specification for protein fortified bread
IS 849-1994 Cold setting casein glue for wood-specification
IS 13650-1993 Glass containers for proteinized food
IS 11888-1987 Method for determination of charred particle content in casein and caseinates

VN-TCVN

TCVN 5461-1991 Synthetic detergents.Determination of proteinous activity
TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 7253-2003 Tobacco and tobacco products.Determination of nitrogen protein content
TCVN 7871-3-2008 Wheat and wheat flour.Gluten content.Part 3: Determination of dry gluten from wet gluten by an oven drying method

AR-IRAM

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

PL-PKN

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

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)
SS-EN ISO 20418-3:2020 Textiles - Qualitative and quantitative proteomic analysis of some animal hair fibres - Part 3: Peptide detection using LC-MS without protein reduction (ISO 20418-3:2020)

CEN - European Committee for Standardization

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

American Water Works Association (AWWA)

AWWA WQTC65752 Protein Assay in Drinking Water and Reclaimed Water

Magyar Szabványügyi Testület

MNOSZ 17619-1954 Definition of the concept of protein content in preserved foods
MSZ 21340-1980 animal protein feed
MSZ KGST 1422-1978 Determination of protein content of phosphorus and phosphorus inorganic mixtures
MSZ 6830/5-1981 Determination of feed nutrition for livestock herds, determination of digestible protein content

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 5550:2015 Caseins and caseinates -- Determination of moisture content (Reference method)
OS GSO ISO 8968-5:2014 Milk -- Determination of nitrogen content -- Part 5: Determination of protein-nitrogen content
OS GSO ISO 5543:2015 Caseins and caseinates -- Determination of fat content -- Gravimetric method (Reference method)

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)
EN ISO 20418-1:2018 Textiles - Qualitative and quantitative proteomic analysis of some animal hair fibres - Part 1: Peptide detection using LC-ESI-MS with protein reduction
EN ISO 20418-3:2020 Textiles - Qualitative and quantitative proteomic analysis of some animal hair fibres - Part 3: Peptide detection using LC-MS without protein reduction (ISO 20418-3:2020)

CH-SNV

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

Association of Official Analytical Chemists (AOAC)

AOAC 981.10 AOAC Official Method 981.10 Crude Protein in Meat Block Digestion Method First Action 1981 Final Action 1983