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photometric protein

photometric protein, Total:479 items.

In the international standard classification, photometric protein involves: Milk and milk products, Tea. Coffee. Cocoa, Analytical chemistry, Textile fibres, Meat, meat products and other animal produce, Cereals, pulses and derived products, Pulps, Animal feeding stuffs, Protection against crime, Processes in the food industry, Edible oils and fats. Oilseeds, Biology. Botany. Zoology, General methods of tests and analysis for food products, Food products in general, Farming and forestry, Beverages, Fruits. Vegetables, Microbiology, Pharmaceutics, Products of the textile industry, Rubber and plastics products, Medical equipment, Tobacco, tobacco products and related equipment, Paint ingredients, Products of the chemical industry, Laboratory medicine, Medical sciences and health care facilities in general, Waxes, bituminous materials and other petroleum products, Raw materials for rubber and plastics, Cinematography, Textile machinery, Paper production processes, Veterinary medicine, Non-metalliferous minerals, Hospital equipment, Services, Water quality, Vibration and shock with respect to human beings, Wastes, Photography, Vocabularies, Quality, Fuels, Soil quality. Pedology, Physics. Chemistry.

Association Francaise de Normalisation, photometric protein

NF V04-388*NF ISO 5548:2008 Caseins and caseinates - Determination of lactose content - Photometric method.
NF ISO 5548:2008 Caséines et caséinates - Détermination de la teneur en lactose - Méthode photométrique
NF V03-768:2012 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels.
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 V04-387:1985 Caseins and caseinates. Determination of protein content (reference method).
NF EN ISO 8968-4:2016 Lait et produits laitiers - Détermination de la teneur en azote - Partie 4 : détermination de la teneur en azote protéique et non protéique et calcul de la teneur en protéines vraies (Méthode de référence)
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 Céréales - Détermination de la teneur en eau et en protéines - Méthode utilisant la spectroscopie dans le proche infrarouge sur des grains entiers
NF V04-386*NF ISO 5547:2008 Caseins - Determination of free acidity (Reference method)
NF V04-386:1985 Caseins. Determination of free acidity (reference method).
NF ISO 5547:2008 Caséines - Détermination de l'acidité libre (Méthode de référence)
NF V04-390:1988 Caseins and caseinates. Determination of nitrate and nitrite contents. Method by cadmium reduction and spectrometry.
NF V04-216:1985 Milk. Determination of protein content. Amido black dye-binding method (routine method).
NF V04-388:1985 Caseins and caseinates. Determination of lactose content. Photometric method.
NF V04-216:2011 Milk - Determination of protein content - Amido black dye-binding method (routine method).
NF V03-021:2013 Foodstuffs - Molecular biomarker analysis - Protein-based methods
NF V03-741:2008 Cereals and cereal products - Maize products - Promatest - Method for assessment of heatsensitive proteins.
NF V03-750*NF EN ISO 20483:2014 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
NF EN ISO 21572:2019 Produits alimentaires - Analyse des biomarqueurs moléculaires - Méthodes immunochimiques pour la détection et la quantification des protéines
FD V03-769*FD CEN/TR 17474:2021 Cereals (wheat and barley) - Technical Report of the interlaboratory studies for the determination of moisture and protein in whole kernels by near infrared spectroscopy
NF V18-100-2*NF EN ISO 5983-2:2009 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2 : block digestion and steam distillation method.
NF V03-750:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method.
FD CEN/TR 17474:2021 Céréales (blé et orge) - Rapport technique des essais interlaboratoires pour la détermination de la teneur en eau et en protéines par spectroscopie proche infrarouge sur des grains entiers
NF V03-722:1990 {durum}. Identification of variety by electrophoresis of proteins in polyacrylamide gel containing sodium docecylsulfate.
NF V04-407:2002 Meat, meat product and fishery products - Determination of nitrogen content and calculation of the protein content - Kjeldahl method.
NF V18-100-1*NF EN ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1 : Kjeldahl method
NF V18-100-2:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2 : block digestion/steam distillation method.
NF T90-139*NF EN ISO 17852:2008 Water quality - Determination of mercury - Method using atomic fluorescence spectrometry

RO-ASRO, photometric protein

STAS SR 13348-1-1996 Tea. Analysis methods. Determination of proteic nitrogen by the Kjeldahl method. Spectrophotometric method
SR ISO 5549:1996 Caseins and caseinates - Determination of protein content (Reference method)
STAS 9464-1981 Organic dyestufis OPTICAL BLEACHING AGENT Determination of concentration by the spectrophotometry method

Korean Agency for Technology and Standards (KATS), photometric protein

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 5549:2006 Caseins and caseinates－Determination of protein content(Reference method)
KS H ISO 5549-2006(2016) Caseins and caseinates－Determination of protein content(Reference method)
KS H ISO 5549:2021 Caseins and caseinates — Determination of protein content(Reference method)
KS H ISO 8195:2001 Caseins and caseinates－Determination of nitrate and nitrite contents－Method by cadmium reduction and spectrometry
KS H ISO 8195:2006 Caseins and caseinates－Determination of nitrate and nitrite contents－Method by cadmium reduction and spectrometry
KS H 1204-2012 Testing method for crude proteins content
KS H 1204-2001 Testing method for crude proteins content
KS H 1204-2021 Testing method for crude proteins content
KS H ISO 5547:2006 Caseins－Determination of free acidity(Reference method)
KS H ISO 5547:2021 Caseins — Determination of free acidity(Reference method)
KS H ISO 5547-2006(2016) Caseins－Determination of free acidity(Reference method)
KS H ISO 5542:2006 Milk－Determination of protein content－Amido black dye-binding method(Rountine method)
KS H ISO 5542:2021 Milk — Determination of protein content — Amido black dye-binding method(Rountine method)
KS H ISO 5542-2006(2016) Milk－Determination of protein content－Amido black dye-binding method(Rountine method)
KS P 1011-2008 Test method of the 2-D electrophoresis for recombinant bacteria
KS J ISO 21572:2009 Foodstuffs-Methods for the detection of genetically modified organisms and derived products-Protein based methods
KS M ISO 12243:2007 Medical gloves made from natural rubber latex－Determination of water-extractable protein using the modified Lowry method
KS M ISO 12243-2017(2022) Medical gloves made from natural rubber latex — Determination of water-extractable protein using the modified Lowry method
KS M ISO 12243:2017 Medical gloves made from natural rubber latex — Determination of water-extractable protein using the modified Lowry method
KS P 1015-2012 Establishment of a reference material and evaluation method for troponin-based cardiovascular diagnostics
KS J ISO 21572-2009(2019) Foodstuffs－Methods for the detection of genetically modified organisms and derived products－Protein based methods
KS I ISO 6878-2007(2017) Water quality－Determination of phosphorus－Ammonium molybdate spectrometric method
KS I ISO 6333-2007(2017) Water quality－Determination of manganese－Formaldoxime spectrometric method
KS I ISO 6332-2007(2012) Water quality－Determination of iron－Spectrometric method using 1,10-phenanthroline

International Organization for Standardization (ISO), photometric protein

ISO 5548:2004 Caseins and caseinates - Determination of lactose content - Photometric method
ISO 5548:2004|IDF 106:2004 Caseins and caseinates — Determination of lactose content — Photometric method
ISO 5548:1980 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 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 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 5547:2008 Caseins - Determination of free acidity (Reference method)
ISO 5547:2008|IDF 91:2008 Caseins — Determination of free acidity (Reference method)
ISO 5547:1978 Caseins; Determination of free acidity (Reference method)
ISO 5547:2008 | IDF 91:2008 Caseins — Determination of free acidity (Reference method)
ISO 8195:1987 Caseins and caseinates; Determination of nitrate and nitrite contents; Method by cadmium reduction and spectrometry
ISO 5542:1984 Milk; Determination of protein content; Amido black dye-binding method (Routine method)
ISO 21572:2019 Foodstuffs — Molecular biomarker analysis — Immunochemical methods for the detection and quantification of proteins
ISO 21572:2004 Foodstuffs - Methods for the detection of genetically modified organisms and derived products - Protein based methods
ISO 21572:2013 Foodstuffs - Molecular biomarker analysis - Protein-based methods
ISO 20483:2013 Cereals and pulses.Determination of the nitrogen content and calculation of the crude protein content.Kjeldahl method
ISO 12243:2003 Medical gloves made from natural rubber latex - Determination of water-extractable protein using the modified Lowry method
ISO 12243:2003/Amd 1:2012 Medical gloves made from natural rubber latex — Determination of water-extractable protein using the modified Lowry method — Amendment 1
ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method
ISO 6878:1998 Water quality - Spectrometric determination of phosphorus using ammonium molybdate
ISO 1833-18:2019 Textiles — Quantitative chemical analysis — Part 18: Mixtures of silk with other protein fibres (method using sulfuric acid)

KR-KS, photometric protein

KS H ISO 5548-2020 Caseins and caseinates－Determination of lactose content－Photometric method
KS H ISO 5549-2021 Caseins and caseinates — Determination of protein content(Reference method)
KS H ISO 8195-2001 Caseins and caseinates－Determination of nitrate and nitrite contents－Method by cadmium reduction and spectrometry
KS H 1204-2022 Testing method for crude proteins content
KS H ISO 5547-2021 Caseins — Determination of free acidity(Reference method)
KS H ISO 5542-2021 Milk — Determination of protein content — Amido black dye-binding method(Rountine method)

British Standards Institution (BSI), photometric protein

BS ISO 5548:2004 Caseins and caseinates - Determination of lactose content - Photometric methods
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 15948:2012 Cereals. Determination of moisture and protein. Method using Near-Infrared- Spectroscopy in whole kernels
BS EN 15948:2015 Cereals. Determination of moisture and protein. Method using Near-Infrared-Spectroscopy in whole kernels
BS ISO 5547:2008 Caseins - Determination of free acidity (Reference method)
BS EN 15948:2020 Cereals. Determination of moisture and protein. Method using Near-Infrared Spectroscopy in whole kernels
18/30374728 DC BS EN 15948. Cereals. Determination of moisture and protein. Method using Near-Infrared-Spectroscopy in whole kernels
BS EN ISO 21572:2013 Foodstuffs. Molecular biomarker analysis. Protein-based methods
BS 6248-7:1982 Caseins and caseinates - Method for determination of protein content (reference method)
BS EN ISO 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
BS EN ISO 20483:2013 Cereals and pulses. Determination of the nitrogen content and calculation of the crude protein content. Kjeldahl method
BS ISO 12243:2003+A1:2012 Medical gloves made from natural rubber latex. Determination of water-extractable protein using the modified Lowry method
BS PD CEN/TR 17474:2020 Cereals (wheat and barley). Technical Report of the interlaboratory studies for the determination of moisture and protein in whole kernels by near infrared spectroscopy
BS 4317-19:1990 Methods of test for cereals and pulses - Determination of protein quality of wheat by the sodium dodecyl sulphate (SDS) test
BS EN ISO 21572:2019 Foodstuffs. Molecular biomarker analysis. Immunochemical methods for the detection and quantification of proteins
BS EN 13506:2002 Water quality - Determination of mercury by atomic fluorescence spectrometry
BS EN 13506:2002*BS 6068-2.74:2002 Water quality - Determination of mercury by atomic fluorescence spectrometry
BS EN ISO 1833-4:2011 Textiles. Quantitative chemical analysis. Mixtures of certain protein and certain other fibres (method using hypochlorite)
BS EN ISO 1833-4:2010 Textiles. Quantitative chemical analysis. Mixtures of certain protein and certain other fibres (method using hypochlorite)

Japanese Industrial Standards Committee (JISC), photometric protein

JIS K 0602:2000 Proteins -- Serum albumin -- Methods for quantitative analysis
JIS K 0605:2000 Proteins -- Trypsin -- Methods for quantitative analysis
JIS K 0606:2000 Proteins -- Transferrin -- Methods for quantitative analysis
JIS K 0603:2000 Proteins -- Immunoglobulin -- Methods for quantitative analysis
JIS K 0604:2000 Proteins -- Monoclonal IgG -- Methods for quantitative analysis
JIS K 0607:2000 Proteins -- Glucoseoxydase -- Methods for quantitative analysis
JIS L 0887:1975 Testing method for colour fastness to light fluorescent whitening agents and fluorescent whitened textiles

RU-GOST R, photometric protein

GOST R 51469-1999 Caseins and caseinates. Photometric method for determination of lactose 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 R 51468-1999 Caseins. Method for determination of free acidity
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 25011-1981 Meat and meat products. Methods of protein determination
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 51466-1999 Caseins. Method for determination of "fixed ash" mass fraction
GOST 13496.4-1993 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 13496.4-1984 Fodder, mixed fodder and animal feed raw stuff. Methods of nitrogen and crude protein determination
GOST R 54662-2011 Cheeses and processed cheeses. Determination of protein mass fraction by the Kjeldahl method
GOST 30131-1996 Oil-cake and ground oil-cake. Determination of moisture, oil and protein by infrared reflectance
GOST 28074-1989 Vegetable fodder. Method for the determination of crude protein solubility
GOST 28075-1989 Vegetable fodder. Method for the determination of crude protein splitting
GOST R 54478-2011 Grain. Methods of determination quantity and quality of gluten in wheat
GOST R 53951-2010 Milk and milk-containing products. Determination of mass part of protein by Kjeldahl method
GOST R 52421-2005 Fish, marine products and products of them. Method of determining the fraction of total mass of protein, fat, water, phosphorus, calcium and ash by the near-infra-red spectrometry
GOST R 53213-2008 Meat and meat products. Histological method of identification of plant protein additives
GOST R 53011-2008 Mixed feeds, protein-vitamin-mineral concentrates, premixes. Methods for determination of metallomagnetic impurity
GOST 32749-2014 Oilseeds, oilcakes and oilmeals. Determination of moisture, oil, protein and fiber by near-infrared reflectance
GOST R 53761-2009 Milk. The identification of protein composition by use the electrophoresis in polyakrilamide gel
GOST 31795-2012 Fish, marine products and products of them. Method of determining the fraction of total mass of protein, fat, water, phosphorus, calcium and ash by the near-infra-red spectrometry
GOST 10691.3-1984 Black-and-white motion picture films. Method for determination of speed numbers
GOST 31477-2012 Meat and meat products. Immune method of determination of animal (pork, beef, mutton) proteins
GOST R 53514-2009 Meat and meat products. Immune method of determination of animal (pork, beef, mutton) proteins
GOST 23327-1998 Milk and milk products. Determination of mass part of total nitrogen by Kjeldahl method and determination of mass part of protein
GOST 23327-1978 Milk. Methods for determination of the total protein content
GOST 31484-2012 Mixed feeds, protein-vitamin-mineral concentrates, premixes. Methods for determination of metallomagnetic impurity
GOST R 53862-2010 Mixed feeds, protein-vitamin-mineral concentrates. Method for determination of the oxiacids
GOST R 54607.7-2016 Public catering services. Methods of laboratory quality control of products catering. Part 7. Determination of protein by the Kjeldahl method
GOST R 51417-1999 Feeds, mixed feeds and raw material. Determination of mass fraction of nitrogen and calculation of mass fraction of crude protein. Kjeldahl method
GOST 10691.5-1988 Black-and-white aerophotographic films. Method for determination of speed numbers

CZ-CSN, photometric protein

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 0111-8-2002 Testing methods for casein and caseinates - Determination of titratable acidity
CSN 57 0111 Cast.10-1979 Testing methods for casein. Determination of purity
CSN 56 0186 Cast.12-1981 Testing methods for beer. art 12. etermination of proteins
CSN 56 0512-12-1995 Methods of milled produets analysis - Part 12: Determination of protein content
CSN 57 0105 Cast.5-1984 Powdered and condensed milk products. Testing methods. Determination of protein content
CSN 46 7092-27-1998 Testing methods for feeding stuffs - Part 27: Determination of the protein content
CSN 570111-8-2002 Testing methods for casein and caseinates - Determination of titratable acidity
CSN 57 0153-1986 Testing methods for meat products and sterilized food in preserves. Determination of protein content according to Kjeldahl
CSN 35 8585 Cast.3-1987 Color television picture tubes. Measuring methods of white light screen luminance and determination of ratio of anodě currents at white light
CSN 40 4008-1974 Mass determination of radioactive substances by spectrophotometric method
CSN 65 4605-1987 Fluorescent brightening agents Methods of affinity, maximum brightening efect, strength and shade determination

IN-BIS, photometric protein

German Institute for Standardization, photometric protein

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 10470:2011-07 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic 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 15948:2012 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels; German version EN 15948:2012
DIN EN 15948:2015 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels; German version EN 15948:2015
DIN 10450:1983-03 Determination of free acidity of caseins; reference method
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 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 58931:1995 Haematology - Determination of haemoglobin concentration in blood - Reference method
DIN 10454:1983 Determination of protein content of caseins and caseinates; reference method
DIN SPEC 13290:2021 Protein analysis - Evaluation criteria for thermal unfolding methods (DSF and DSC); Text in German and English
DIN 58931:2021 Haematology - Determination of haemoglobin concentration in blood - Reference method; Text in German and English
DIN 58931:2021-09 Haematology - Determination of haemoglobin concentration in blood - Reference method; Text in German and English
DIN EN 15948:2020 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels; German version EN 15948:2020
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 EN ISO 20483:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2006); German version EN ISO 20483:2006
DIN EN ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005); English version of DIN EN ISO 5983-1
DIN 58931:2010 Haematology - Determination of haemoglobin concentration in blood - Reference method; Text in German and English
DIN 55982:2017 Pigments - Determination of lightening power of white pigments according to the paste method
DIN EN ISO 21572:2020-02 Foodstuffs - Molecular biomarker analysis - Immunochemical methods for the detection and quantification of proteins (ISO 21572:2019); German version EN ISO 21572:2019
DIN EN ISO 21572:2020 Foodstuffs - Molecular biomarker analysis - Immunochemical methods for the detection and quantification of proteins (ISO 21572:2019)
DIN EN ISO 5983-2:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2: Block digestion/steam distillation method (ISO 5983-2:2005); German version EN ISO 5983-2:2005
DIN EN ISO 21572:2013 Foodstuffs - Molecular biomarker analysis - Protein-based methods (ISO 21572:2013); German version EN ISO 21572:2013

Lithuanian Standards Office , photometric protein

LST ISO 5548:2004 Caseins and caseinates. Determination of lactose content. Photometric method (idt ISO 5548:2004)
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
LST 1493-1998 Ground wheat and milled wheat products. Determination of protein by near infrared reflectance (NIR) spectroscopy
LST ISO 5547:2008 Caseins - Determination of free acidity (Reference method) (ISO 5547:2008, identical)
LST 1645-2000/1K-2005 Swede rape and turnip rape seeds. Determination of moisture and volatile matter and oil and proteins content. Near infra-red light molecule absorption spectrometric method
LST 1645-2000 Swede rape and turnip rape seeds. Determination of moisture and volatile matter and oil and proteins content. Near infra-red light molecule absorption spectrometric method
LST EN ISO 21572:2004 Foodstuffs - Methods for the detection of genetically modified organisms and derived products - Protein based methods (ISO 21572:2004)
LST EN ISO 21572:2004/AC:2005 Foodstuffs - Methods for the detection of genetically modified organisms and derived products - Protein based methods (ISO 21572:2004)

Professional Standard - Textile, photometric protein

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

AT-ON, photometric protein

ONORM DIN 10454-1993 Determination of protein content 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 10334-1994 Determination of nitrogen content of milk according to Kjeldahl and calculation of crude protein content

农业农村部, photometric protein

NY/T 3608-2020 Method for determination of collagen content in livestock and poultry bones Spectrophotometry
NY/T 3298-2018 Determination of crude protein in vegetable oils by near-infrared spectroscopy
NY/T 3870-2021 Determination of selenoamino acids in selenoproteins by liquid chromatography-atomic fluorescence spectrometry

Professional Standard - Hygiene , photometric protein

WS/T 42-1996 Blood.Determination of carboxyhemoglobin.Spectrophotometric method

American Society for Testing and Materials (ASTM), photometric protein

ASTM D6188-17 Standard Test Method for Viscosity of Cellulose by Cuprammonium Ball Fall
ASTM D7818-12 Standard Test Method for Enumeration of Proteolytic Bacteria in Fresh (Uncured) Hides and Skins
ASTM E1470-92(1998) Standard Test Method for Characterization of Proteins by Electrophoretic Mobility
ASTM E1470-92(2006) Standard Test Method for Characterization of Proteins by Electrophoretic Mobility
ASTM D5712-99 Standard Test Method for the Analysis of Aqueous Extractable Protein in Natural Rubber and Its Products Using the Modified Lowry Method
ASTM D8238-18 Standard Test Method for Immunological Assay to Quantify Extractable Guayule Natural Rubber (GNR) Proteins
ASTM D6499-07 Standard Test Method for The Immunological Measurement of Antigenic Protein in Natural Rubber and its Products
ASTM D6499-00 Standard Test Method for the Immunological Measurement of Antigenic Protein in Natural Rubber and its Products
ASTM D6499-03 Standard Test Method for the Immunological Measurement of Antigenic Protein in Natural Rubber and its Products
ASTM D5712-10 Standard Test Method for Analysis of Aqueous Extractable Protein in Natural Rubber and Its Products Using the Modified Lowry Method
ASTM D5712-99e1 Standard Test Method for Analysis of Aqueous Extractable Protein in Natural Rubber and Its Products Using the Modified Lowry Method
ASTM D5712-05e1 Standard Test Method for Analysis of Aqueous Extractable Protein in Natural Rubber and Its Products Using the Modified Lowry Method
ASTM C1510-01 Standard Test Method for Color and Color Difference of Whitewares by Abriged Spectrophotometry
ASTM C1510-01(2020) Standard Test Method for Color and Color Difference of Whitewares by Abriged Spectrophotometry
ASTM C1510-01(2016) Standard Test Method for Color and Color Difference of Whitewares by Abriged Spectrophotometry
ASTM D5712-05 Standard Test Method for Analysis of Aqueous Extractable Protein in Natural Rubber and Its Products Using the Modified Lowry Method
ASTM E1759-95 Standard Test Method for Isoaspartic Acid in Proteins Method for the Determination of Asparagine Deamidation Products
ASTM E1759-95(2003) Standard Test Method for Isoaspartic Acid in Proteins: Method for the Determination of Asparagine Deamidation Products
ASTM D8238-18(2023) Standard Test Method for Immunological Assay to Quantify Extractable Guayule Natural Rubber (GNR) Proteins

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, photometric protein

GB/T 17811-1999 Determination of digestibility in animal protein feeds--Pepsin method
GB/T 14489.2-1993 Method for determination of crude protein oilseed
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 28715-2012 Determination of acidic and neutral protease activity in feed additives.Spetrophotometric method
GB/T 25879-2010 Determination of lysozyme in chicken egg white.Spectrophotometry
GB/T 5511-1985 Inspection of grain and oilseeds--Methods for determination of crude protein
GB/T 15673-1995 Method for determination of crude protein in edible fungi
GB/T 19495.8-2004 Detection of genetically modified plants and derived products. Protein based methods
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/T 8856-1988 Method for determination of crude protein in fruit and vegetable products
GB/T 42699.2-2023 Qualitative and Quantitative Analysis of the Proteome of Certain Animal Hair Fibers in Textiles Part 2: Peptide Analysis of Reduced Proteins Matrix-Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF-MS) Method
GB/T 24897-2010 Inspection of grain and oils-Crude protein determination in rice-Near-infrared method
GB/T 24899-2010 Inspection of grain and oils-Determination of crude protein in wheat-Near-infrared method
GB/T 24901-2010 Inspection of grain and oils-Determination of crude protein in maize-Near-infrared method
GB/T 9338-1988 Method of instrumental measurement of whiteness of fluorescent whitening agents
GB/T 42699.1-2023 Textiles—Qualitative and quantitative proteomic analysis of some animal hair fibres—Part 1：Peptide detection using LC-ESI-MS with protein reduction
GB/T 24871-2010 Inspection of grain and oils-Crude protein determination in wheat flour-Near-infrared method
GB/T 11081-2005 Standard test method for ultraviolet adsorption of white oils
GB/T 9338-2008 Fluorescent whitening agents.Determination of relative whiteness.Instrumental measurement
GB/T 23979.2-2009 Fluorescent whitening agents.Determination of relative whiteness and shade.Dyeing method for paper
GB/T 21870-2008 Medical gloves made from natural rubber latex.Determination of water-extractable protein using the modified lowry method
GB/T 11081-1989 White oils--Determination of ultraviolet absorption
GB/T 23979.1-2009 Fluorescent whitening agents.Determination of relative whiteness and shade.Dyeing method for cotton fabric
GB/T 24870-2010 Inspection of grain and oils-Crude protein and crude fat determination in soybean-Near-infrared method
GB/T 5511-2008 Cereals and pulses.Determination of the nitrogen content and calculation of the crude protein content.Kjeldahl method
GB/T 24318-2009 Determination of total nitrogen content in animal feeding stuffs by combustion according to the Dumas principle and calculation of the crude protein content
GB/T 13900-1992 Water quality.Determination of RDX.Spectrophotometry
GB/T 13903-1992 Water quality.Determination of TNT.Spectrophotometry
GB/T 13903-1992 13905-1992 Determination of Water Quality TNT by Spectrophotometry
GB/T 14766-1993 Photography-black-and-white continuous-tone papers determination of ISO speed and ISO range for printing
GB/T 7470-1987 Water quality--Determination of lead--Spectrophotometric method with dithizone
GB/T 7471-1987 Water quality--Determination of cadmium--Spectrophotometric method with dithizone
GB/T 7472-1987 Water quality--Determination of zinc--Spectrophotometric method with dithizone
GB/T 7481-1987 Water quality--Determination of ammonium--Spectrophotometric method with salicylic acid
GB/T 11909-1989 Water quality--Determination of silver--Spectrophotometric method with 3,5-Br2-PADAP
GB 11909-1989 Determination of silver in water by 3,5-Br2-PADAP spectrophotometry
GB 7481-1987 Determination of water quality ammonium salicylic acid spectrophotometric method
GB/T 15506-1995 Water quality--Determination of barium--Atomic absorption spectrometry
GB/T 11893-1989 Water quality--Determination of total phosphorus--Ammonium molybdate spectrophotometric method
GB/T 11908-1989 Water quality--Determination of silver--Spectrophotometry with cadion 2B
GB 11908-1989 Water Quality Silver Determination Cadmium Reagent 2B Spectrophotometric Method
GB/T 7493-1987 Water quality--Determination of nitrogen (nitrite)--Spectrophotometric method
GB/T 11910-1989 Water quality--Determination of nickel--Dimethylglyoxime spectrophotometric method
GB/T 11906-1989 Water quality--Determination of manganese--Potassium periodate spectrophotometric method

Professional Standard - Public Safety Standards, photometric protein

GA/T 2073-2023 Forensic sciences—Examination methods for carboxyhaemoglobin in blood samples—Spectrophotometry
GA/T 819-2009 Analytical method of acid dyes on the protein fibers

European Committee for Standardization (CEN), photometric protein

EN 15948:2012 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels
EN 15948:2015 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)
EN ISO 21572:2019 Foodstuffs - Molecular biomarker analysis - Immunochemical methods for the detection and quantification of proteins (ISO 21572:2019)
EN ISO 21572:2013 Foodstuffs - Molecular biomarker analysis - Protein-based methods
EN ISO 20483:2013 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
PD CEN/TR 17474:2020 Cereals (wheat and barley) - Technical Report of the interlaboratory studies for the determination of moisture and protein in whole kernels by near infrared spectroscopy
EN ISO 5983-2:2009 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2: Block digestion and steam distillation method
EN ISO 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
CEN/TR 17474:2020 Cereals (wheat and barley) - Technical Report of the interlaboratory studies for the determination of moisture and protein in whole kernels by near infrared spectroscopy

Professional Standard - Agriculture, photometric protein

NY/T 4306-2023 Determination of activity of papaya and bromelain by ultraviolet spectrophotometry
NY/T 4362-2023 Determination of Feed Additive Keratinase Activity Spectrophotometric Method
176药典三部-2010 Appendix Ⅵ ⅥB protein assay
GB/T 5009.5-1985 Determination method of protein in food
NY/T 2070-2011 Determination of immunoglobulin G in bovine colostrum and its products.Spectrophotometry
2330药典二部-2010 Appendix VII M Determination of protein content
220药典三部-2020 Content Determination Method 0731 Protein Content Determination Method
92药典四部-2020 0700 Other Determination Methods 0731 Determination of Protein Content
111药典四部-2015 0700 Other Determination Methods 0731 Determination of Protein Content
NY/T 2659-2014 Rapid determination of fat,protein,lactose and total solids in milk.Infrared spectrometry
GB 8856-1988 Method for Determination of Crude Protein in Fruit and Vegetable Products
201药典三部-2015 Content Determination Method 0731 General Principles of Protein Content Determination Method 50
NY/T 449-2001 Identification purity of maize variety using salting in protein eletrohporesis
NY/T 1678-2008 Determination of protein in milk and dairy products biuret spectrophotometry method
651药典第一增补本-2010 Part Two Revised Appendix Appendix VII M Determination of Protein Content
GB/T 22260-2023 Determination of Anabolic Hormones in Feed by Liquid Chromatography-Tandem Mass Spectrometry
NY/T 3-1982 Method for determination of crude protein in cereals and beans seeds(Semi-micro kjeldahl method)
292药典三部-2020 Bioassay 3412 Determination of Escherichia coli protein residues
GB 2905-1982 Determination of crude protein in cereal and bean crop seeds (semi-micro Kjeldahl method)
293药典三部-2020 Bioassay 3413 Determination of protein residues in Pseudomonas bacteria
NY/T 2007-2011 Determination of the crude protein content in cereal and pules seeds by combustion according to the dumas principle
226药典三部-2010 Appendix IX IXD Determination of protein residues in Pseudomonas bacteria
225药典三部-2010 Appendix IX IXC Determination of Escherichia coli protein residues
248药典四部-2015 3400 Bioassay 3412 Determination of Escherichia coli protein residues
249药典四部-2015 3400 Bioassay 3413 Determination of Pseudomonas bacterial protein residues
294药典三部-2020 Bioassay 3414 Determination of Protein Residue in Yeast Engineering Bacteria
241药典四部-2020 3400 Bioassay 3412 Determination of Escherichia coli protein residues
242药典四部-2020 3400 Bioassay 3413 Determination of Pseudomonas bacterial protein residues
245药典三部-2020 Content Determination Method 3124 Human Granulocyte Stimulating Factor Protein Content Determination Method
227药典三部-2010 Appendix IX IXE Method for Determination of Protein Residue in Yeast Engineering Bacteria
250药典四部-2015 3400 Biological Assay 3414 Determination of Protein Residue in Yeast Engineering Bacteria
243药典四部-2020 3400 Biological Assay 3414 Determination of Protein Residue in Yeast Engineering Bacteria
268药典三部-2015 Bioassay 3413 Pseudomonas bacterial protein residue determination method 112
267药典三部-2015 Bioassay 3412 Escherichia coli bacterial protein residue determination method 111
194药典三部-2010 Appendix VI VIU Determination of Recombinant Human Granulocyte Stimulating Factor Protein Content
269药典三部-2015 Bioassay 3414 Yeast Engineering Bacteria Protein Residual Determination Method 113
218药典四部-2015 3100 Content Determination 3124 Recombinant Human Granulocyte Stimulating Factor Protein Content Determination
206药典四部-2020 3100 Content Determination 3124 Recombinant Human Granulocyte Stimulating Factor Protein Content Determination
SN/T 5071-2018 Determination of 19 Non-protein Nitrogenous Compounds in Export Food by Liquid Chromatography-Mass Spectrometry/Mass Spectrometry
农业部2630号公告-16-2017 Bioinformatics analysis method for amino acid sequence similarity of exogenous proteins, toxic proteins and anti-nutritional factors for the food safety detection of genetically modified organisms and their products
226药典三部-2015 Content Assay 3124 Recombinant Human Granulocyte Stimulating Factor Protein Assay General Rules 62
农业部2630号公告-12-2017 Evaluation method of foreign protein detection test paper for detection of components of transgenic plants and their products
水产品质量安全检验手册 9.1.5.0-2005 Chapter IX Fishing Feed Inspection Section 1 Basic Method for Fishing Feed Testing 5. Rapid Determination of Moisture, Crude Protein, Crude Fiber, Crude Fat, Lysine and Methionine in Fishing Feed--Near Infrared Spectroscopy (GBT 18868- 2002)

Group Standards of the People's Republic of China, photometric protein

T/CAB 0063-2020 Detection method of Type Ⅲ collagen promoting cell adhesion Spectrophotometry
T/GXAS 357-2022 Rapid screening of protein content in fresh wet rice noodles by near infrared spectroscopy
T/SSFS 0006-2023 A rapid evaluation method for quality determination of protein peptide powder products by multi-step infrared spectroscopy
T/CAB 0062-2020 Identification of type Ⅲ collagen LC-MS/MS method
T/CSBME 026-2021 Myoglobin Quantitative Assay （Kit） (fluorescence immunochromatography)
T/ZGKSL 005-2023 Quality requirements and efficacy assessment for recombinant collagen
T/GDMDMA 0028-2023 Heparin-binding Protein Testing Kit (chemiluminescent immunoassay)
T/CSBME 028-2021 Cardiac troponin-I quantitative Assay (kit) (fluorescence immunochromatography)
T/GDMDMA 0002-2022 Lipoprotein-associated Phospholipase A2 Detection kit(Chemiluminescent Immunoassay)
T/BPCT 001-2023 Determination of A2 β-casein content in cow milk and cow milk products by high performance liquid chromatography-mass spectrometry
T/GDID 1077-2023 Tubular chemiluminescence immunoassay for detecting antibodies of african swine fever virus P30
T/GDID 1075-2023 Tubular chemiluminescence immunoassay for detecting antibodies of pseudorabies virus gB glycoprotein
T/CPMA 023-2020 Determination of N-methylcarbamoylatedhaemoglobin in blood by liquid chromatography-tandem mass spectrometry
T/CCAA 70-2023 Determination of lactoferrin in bovine infant formula by liquid chromatography tandem mass spectrometry

CU-NC, photometric protein

NC 57-98-1-1986 Clinical Methods and Aids. Photometric Determination of Hemoglobin in Blood. Chemical Analysis Method
NC 20-06-22-1987 Medical Sciences. Photometric Determination of Cholesterols Linked to High Density Lipoproteins. Method of Chemical Analysis
NC 57-98-5-1986 Clinical Methods and Aids Photometric Determination of Lipoproteins Beta and Prebeta Index in Human Serum Chemical Analysis Methods

Taiwan Provincial Standard of the People's Republic of China, photometric protein

CNS 5035-1986 Method of Test for Crude Protein in Food
CNS 3449-2007 Method of test for milk and milk products - Determination of 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 2770.5-1986 Method of Test for Feeds : Determination of Crude Protein
CNS 2713-1978 Method for Determining of Digest Protein of Feather Meal
CNS 6511-2008 Method of test for meat and meat products - Determination of crude protein content
CNS 9901-1983 Methods of Test for Colour Fastness to Light of Fluorescent Whitening Agents and Fluorescent Textiles
CNS 13418-1994 Method of Test for Brightness of Mineral Fillers and Pigments (45°/0°Directional Tester) for Paper Making
CNS 13417-1994 Method of Test for Brightness of Mineral Fillers and Pigments (Diffuse Blue Reflectance) for Paper Making
CNS 9423-1982 Method for Determining Iron Oxide in Dolomite (O - Phenanthroline Absorptiometric Method)
CNS 9427-1982 Method for Determining Phosphorus Pentoxide in Dolomite (MIB K Absorptiometric Method)

Danish Standards Foundation, photometric protein

DS/EN 15948:2020 Cereals – Determination of moisture and protein – Method using Near-Infrared Spectroscopy in whole kernels
DS/EN 15948:2012 Cereals - Determination of moisture and protein - Method using Near-Infrared-Spectroscopy in whole kernels
DS/EN ISO 21572:2013 Foodstuffs - Molecular biomarker analysis - Protein-based methods
DS/CEN/TR 17474:2020 Cereals (wheat and barley) – Technical Report of the interlaboratory studies for the determination of moisture and protein in whole kernels by near infrared spectroscopy
DS 285:1990 Water qulity. Total arsenic content. Spectrophotometric method
DS 289:1992 Water quality. Determination of colour. Spectrophotometric method

PL-PKN, photometric protein

PN-EN 15948-2021-03 E Cereals -- Determination of moisture and protein -- Method using Near-Infrared Spectroscopy in whole kernels
PN P04901-1987 Determination of keratin matters solubility in reagents for chemical damage characterictic

Hebei Provincial Standard of the People's Republic of China, photometric protein

DB13/T 1091-2009 Determination of acid protease activity in enzyme preparations for feed - spectrophotometric method
DB13/T 812-2006 Determination of protein solubility of soybean and its products
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 221-1994 Method for testing the purity of corn hybrids, inbred lines, and wheat seeds - protein electrophoresis

Jilin Provincial Standard of the People's Republic of China, photometric protein

DB22/T 1819-2013 Spectrophotometric method for the determination of acid protease activity in enzyme preparations for feed

Standard Association of Australia （SAA）, photometric protein

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 2300.10.7:1991 Methods of chemical and physical testing for the dairying industry - Caseins, caseinates and coprecipitates - Determination of lactose - Photometric method
AS 2001.7.5:1983 METHODS OF TEST FOR TEXTILES PART 7-QUANTITATIVE ANALYSIS OF FIBRE MIXTURES-AS 2001.7.5 BINARY MIXTURES OF CERTAIN PROTEIN FIBRES (WOOL, ANIMAL HAIR, SILK OR PROTEIN) AND CERTAIN OTHER FIBRES (METHOD USING ALKALINE SODIUM HYPOCHLORITE)
AS 2300.1.8:2008
AS 2300.1.8.1:1988 Methods of chemical and physical testing for the dairying industry - General methods and principles - Analytical quality assurance of instrumental methods - Protein in milk

未注明发布机构, photometric protein

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)
DIN EN ISO 21572 Berichtigung 1:2005 Food – Methods for the detection of genetically modified organisms and their products – Protein methods
DIN EN ISO 21572:2004 Food – Methods for the detection of genetically modified organisms and their products – Protein methods
BS EN ISO 6878:2004(2009)*BS 6068-2.28:2004 Water quality — Determination of phosphorus — Ammonium molybdate spectrometric method

ES-UNE, photometric 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)
UNE-EN 15948:2021 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels
UNE-EN ISO 21572:2020 Foodstuffs - Molecular biomarker analysis - Immunochemical methods for the detection and quantification of proteins (ISO 21572:2019)

GOSTR, photometric protein

GOST 34551-2019 Сonfectionery. Method for determination of mass fraction of protein
GOST 34454-2018 Dairy products. Determination of protein content by the Kjeldahl method
GOST 13496.4-2019 Fodder, мixed fodder and raw mixed fodder. Methods of nitrogen and crude protein determination
GOST 34567-2019 Meat and meat products. Method for determination of moisture, fat, protein, sodium chloride and ash using near infrared spectroscopy
GOST 34536-2019 Milk and milk products. Determination of mass fraction of whey proteins by Kjeldahl method
GOST 28326.4-1989 Technical liquid ammonia. Determination of oil mass concentration by spectrophotometry method

HU-MSZT, photometric protein

MSZ KGST 1422-1978

Professional Standard - Commodity Inspection, photometric protein

SN/T 0803.9-1999 Oil bearing materials for import and export.Method for the determination of crude protein
SN/T 0800.3-1999 Cereals and feedstuffs 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 1048-2002 Cereals and feedstuffs for import and export -Identification for barley variety.Method of protein electrophoresis
SN/T 1819-2006 Determination of latex protein in medical gloves for import and export.Modified Lowry method
SN/T 4396-2015 Determination of fluorescent whitening agent 85、fluorescent whitening agent 71 and fluorescent whitening agent 113 in foodstuffs for export.LC-MS/MS method
SN/T 2497.20-2010 Test method of import and export dangerous chemicals-Part 20: Determination of protein content using Bradford method

AENOR, photometric protein

UNE 34081:1975 ANALYSIS METHODS FOR CHOCOLATES. MILK PROTEINS.
UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
UNE-EN ISO 21572:2013 Foodstuffs - Molecular biomarker analysis - Protein-based methods (ISO 21572:2013)

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会, photometric protein

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

国家市场监督管理总局、中国国家标准化管理委员会, photometric protein

GB/T 37908-2019 General analysis regulation of the label-free protein microarray based on imaging ellipsometry
GB/T 38163-2019 Determination of allergenic protein—LC-MS/MS method
GB/T 41366-2022 Livestock and poultry meat quality testing—Determination of moisture, protein and fat—Near-infrared spectroscopy method
GB/T 39307-2020 Fluorescent whitening agents—Determination of shade and relative whiteness—Plastic coloring
GB/T 40900-2021 Determination of fluorescent brightener 367 and fluorescent brightener 393 in cosmetics—Liquid chromatography-tandem mass spectrometry

International Dairy Federation (IDF), photometric protein

IDF 91-2008 Caseins - Determination of free acidity (Reference method)
IDF/RM 25-2008 Milk and milk products - Determination of nitrogen content and crude protein calculation - Kjeldahl method

PT-IPQ, photometric protein

NP 1986-1991 Milks Determination of protein content. Kjeldahl technique
NP 2935-1988
NP 1996-2000 Cereals and pulses Determiantion of the nitrogen content and calculation of the raw protein content Kjeldhal method

CEN - European Committee for Standardization, photometric protein

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
EN ISO 5983-2:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2: Block digestion/steam distillation method

CH-SNV, photometric protein

SN 210 100-1987 Technical drawings - Sizes and layout of drawing sheets
SN EN 15948-2021 Cereals - Determination of moisture and protein - Method using Near-Infrared Spectroscopy in whole kernels

VN-TCVN, photometric protein

TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 7774-2007 Milk.Determination of protein content.Amido black dye-binding method (Routine method)
TCVN 8766-2011 Milk and milk products.Determination of protein content.Acid orange 12 dye-binding method
TCVN 7607-2007 Foodstuffs.Methods of analysis for the detection of genetically modified organisms and derived products.Protein based methods
TCVN 4328-1-2007 Animal feeding stuffs.Determination of nitrogen content and calculation of crude protein content.Part 1: Kjeldahl method
TCVN 6177-1996 Water quality.Determination of iron Spectrometric method using 1,10-phenantrolin

IT-UNI, photometric protein

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

Professional Standard - Chemical Industry, photometric protein

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

Professional Standard - Tobacco, photometric protein

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

ES-AENOR, photometric protein

Tianjin Provincial Standard of the People's Republic of China, photometric protein

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

Professional Standard - Medicine, photometric protein

YY/T 1817-2022
YY/T 1162-2009 Alpha-fetoprotein quantitative detection reagent(Kit) (Chemiluminescent Immunoassay)
YY/T 1233-2014 Cardiac troponin-I(cTnl) quantitative detection reagent (kit) (Chemiluminescent immunoassay)

Agricultural Standard of the People's Republic of China, photometric protein

农业部783号公告-6-2006 Determination of iodinated casein in feeds.Liquid chromatography/Mass spectrometry
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
农业部1782号公告-12-2012 Food safety detection of genetically modified organisms and derived products.Methods for analysis of amino acid sequence of protein by MALDI-TOF-MS

ZA-SANS, photometric protein

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

YU-JUS, photometric protein

JUS E.K8.049-1997 Vegetable fats and oils - Determination of eggyolk content in mayonnaise and related products - Spectrophotometric anafysis (Routine method)

国家药监局, photometric protein

YY/T 1805.3-2022 Tissue engineering medical device product collagen Part 3: Collagen content detection based on characteristic peptide determination - liquid chromatography-mass spectrometry
YY/T 0616.7-2020 Disposable medical gloves Part 7: Immunological determination of antigenic protein content

国家能源局, photometric protein

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

UY-UNIT, photometric protein

UNIT 629-1981

Shandong Provincial Standard of the People's Republic of China, photometric protein

DB37/T 4150-2020 Determination of Water Quality β-Naphthol by Fluorescence Spectrophotometry
DB37/T 4149-2020 Determination of water quality UV254 by ultraviolet spectrophotometry

Professional Standard - Water Conservancy, photometric protein

SL 327.1-2005 Water quality.Determination of arsenic.Atomic fluorescence spectrometric method
SL 327.2-2005 Water quality.Determination of mercury.Atomic fluorescence spectrometric method
SL 327.3-2005 Water quality - determination of selenium - atomic fluorescence spectrometric method
SL 327.4-2005 Water quality.Determination of lead.Atomic fluorescence spectrometric method
SL 88-2012 Water quality.Determination of chlorophyll by spectrophotometry
SL 366-2006 Water quality.Determination of petroleum oil.molecular fluorescence spectrometric method

Xinjiang Provincial Standard of the People's Republic of China, photometric protein

DB65/T 4369-2021 Determination of Water Quality and Petroleum by Fluorescence Photometry

Liaoning Provincial Standard of the People's Republic of China, photometric protein

DB21/T 2048-2012 Determination of crude protein, crude fat, crude fiber, moisture, calcium, total phosphorus, crude ash, water-soluble chloride, amino acid in feed by near-infrared spectroscopy

Inner Mongolia Provincial Standard of the People's Republic of China, photometric protein

DB15/T 2601-2022 Rapid determination of crude protein, crude fiber, acid detergent fiber, neutral detergent fiber and acid detergent lignin in Leymus chinensis by near infrared spectroscopy
DB15/T 2600-2022 Rapid determination of crude protein, crude fiber, acid detergent fiber, neutral detergent fiber and acid detergent lignin in alfalfa using near infrared spectroscopy

Professional Standard - Environmental Protection, photometric protein

HJ 593-2010 Water quality.Determination of phosphorus.Phosphomolybdenum blue spectrophotometric method
HJ/T 49-1999 Water quality.Determination of boron curcumin.spectrophotometric method
HJ 897-2017 Determination of water quality chlorophyll a spectrophotometric method
HJ 1191-2021 Spectrophotometric method for the determination of water quality azide
HJ 484-2009 Water quality.Determination of cyanide.Volumetric and spectrophotometry method
HJ 536-2009 Water quality.Determination of ammonia nitrogen.Salicylic acid spectrophotometry
HJ 490-2009 Water quality.Determination of silver.Spectrophotometry with cation 2B

Illuminating Engineering Society of North America, photometric protein

IESNA LM-35-2002 Approved Method for Photometric Testing of Floodlights Using High Intensity Discharge or Incandescent Filament Lamps

Indonesia Standards, photometric protein

SNI 06-2481-1991 Water, Test method for boron content by spectrophotometer in a curcumium manuver

中华人民共和国环境保护部, photometric protein

GB 7472-1987 Water quality-Determination of zinc-Spectrophotometric method with dithizonc
GB 7471-1987 Water quality-Determination of cadmium-Spectrophotometric method with dithizonc
GB 7470-1987 Water quality-Determination of lead-Spectrophotometric method with dithizonc
GB 11906-1989 Water quality-Determination of manganese-Potassium periodate spectrophotometric method
GB 7493-1987 Water quality-Determination of nitrogen (nitrite)-Spectrophotometric method
GB 11910-1989 Water quality-Determination of nickel-Dimethylglyoxime spectrophotometric method
GB 11893-1989 Water quality-Determination of total phosphorus-Ammonium molybdate spectrophotometric method

Professional Standard - Petrochemical Industry, photometric protein

SH/T 0705-2001 Standard test method for determination of vanadium in heavy oils by spectrophotometry
SH/T 0182-1992 Method for Determination of Copper Content in Light Petroleum Products (Spectrophotometric Method)

TH-TISI, photometric protein

TIS 2255.1-2005 Animal feeding stuff s-determination of nitrogen content and calculation of crude protein content.part 1: kjeldahl method

GM North America, photometric protein

GM GM9035P-1988 Quality Control of Lubricants (Infrared Spectrophotometric)

Shanxi Provincial Standard of the People's Republic of China, photometric protein

DB14/T 2013-2020 Methanol Determination of Water Quality Chromotropic Acid Spectrophotometry

Hubei Provincial Standard of the People's Republic of China, photometric protein

DB42/T 1086-2015 Spectrophotometric method for the determination of forest soil organic matter