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Physical method Nitrogen content

Physical method Nitrogen content, Total:497 items.

In the international standard classification, Physical method Nitrogen content involves: Fertilizers, Sugar. Sugar products. Starch, Air quality, Analytical chemistry, Aircraft and space vehicles in general, Coals, Non-ferrous metals, Water quality, Soil quality. Pedology, Leather technology, Animal feeding stuffs, Ferrous metals, Cereals, pulses and derived products, External water conveyance systems, Ceramics, Rubber, Milk and milk products, Fuels, Food products in general, Ferroalloys, Petroleum products in general, Tobacco, tobacco products and related equipment, Inorganic chemicals, Meat, meat products and other animal produce, Construction materials, Cutting tools, Textile fibres, Natural gas, Rubber and plastics products, Products of the chemical industry, Refractories, Materials for the reinforcement of composites, Edible oils and fats. Oilseeds, General methods of tests and analysis for food products, Organic chemicals, Electrical accessories, Products of the textile industry, Testing of metals, Pulps, Wastes, Farming and forestry, Waxes, bituminous materials and other petroleum products, Reinforced plastics, Earthworks. Excavations. Foundation construction. Underground works, Environmental protection, Raw materials for rubber and plastics, Non-metalliferous minerals, Paint ingredients, Measurement of fluid flow, Metalliferous minerals, Nuclear energy engineering.

RU-GOST R, Physical method Nitrogen content

GOST 20851.1-1975 Mineral fertilizers. Methods for determination of nitrogen content
GOST 30181.6-1994 Mineral fertilizers. Method for determination of mass fraction of nitrogen in ammonium salts (in ammonium form, using the formaldehyde method)
GOST 20851.2-1975 Mineral fertilizers. Methods for determination of phosphates
GOST 10671.4-1974 Reagents. Methods for determination of nitrogen compaunds impurity general content
GOST 33045-2014 Water. Methods for determination of nitrogen-containing matters
GOST 26107-1984 Soils. Methods for determination of total nitrogen
GOST 4192-1982 Drinking water. Methods for determination of mineral nitrogen-containing matters
GOST 30181.8-1994 Mineral fertilizers. Method for determination of mass fraction of ammonium nitrogen in compound fertilizers (chloramine method)
GOST 30181.7-1994 Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers (in ammonium and amide forms, using hypochlorite method)
GOST 32985-2014 Solid biofuels. Determination of carbon, hydrogen and nitrogen by instrumental methods
GOST R 54216-2010 Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen by instrumental methods
GOST 30181.4-1994 Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers and nitrale fertilizers in ammonium and nitrate forms (Deward Method)
GOST EN 15750-2016 Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
GOST 30181.5-1994 Mineral fertilizers. Method for determination of mass fraction of amide nitrogen in compound fertilizers (spectrophotocolorimetric method)
GOST R 50453-1992 Meat and meat products. Determination of nitrogen content (Reference method)
GOST R 54234-2010 Solid recovered fuels. Determination of carbon, hydrogen and nitrogen content by instrument methods
GOST 30319.2-2015 Natural gas. Methods of calculation of physical properties. Calculation of physical properties on base information on density of standards conditions and nitrogen and carbon dioxide contents
GOST 7824-1980 Vegetable oils. Methods for determination of phosphorated substances content
GOST 30181.9-1994 Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers (distillation method using the chromium reduction of nitrate nitrogen and mineralization of organic nitrogen)
GOST R ISO 16634-1-2011 Food products. Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content. Part 1. Oilseeds and animal feeding stuffs
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 17444-1976 Reagents. Methods for determination of parent substance of organic nitrogen bearing compounds and salts of organic acids
GOST 13586.5-2015 Grain. Method of moisture content determination
GOST R 57699-2017 Resources saving. Waste treatment. Determination of hydrocarbon content by gravimetry
GOST 17444-2016 Reagents. Methods for determination of main substance of nitrogen containing organic compounds and salts of organic acids
GOST 31640-2012 Feeds. Methods for determination of dry matter content
GOST 31646-2012 Cereals. Method for determination of scabby kernels content
GOST R 52838-2007 Feeds. Methods for determination of dry matter content
GOST 4245-1972 Drinking water. Methods for determination of chloride content
GOST R 50242-1992 Mineral fertilizers. Methods for determination of pottassium content
GOST ISO 1833-15-2015 Textiles. Quantitative chemical analysis. Part 15. Mixtures of jute and certain animal fibres (method by determining nitrogen content)
GOST R 56881-2016 Biomass. Determination of the ash content by standard method
GOST 31863-2012 Drinking water. Method for determination of cyanide content
GOST R 51680-2000 Drinking water. Method for determination of cyanide content
GOST 7619.8-1981 Fluorite. Method for the determination of sulphide sulphur content
GOST 12041-1982 Seed of farm crops. Method for determination of moisture content
GOST 25709-1983 Synthetic latex. Method for the determination of solids

CZ-CSN, Physical method Nitrogen content

CSN 65 4836-1983 Minerál fertilizers Methode for determination of total nitrogen content
CSN 65 4835-1983 Minerál fertilizers. Determination of ammoniacal nitrogen content by distillating method
CSN 83 0540 Cast.13-1984 Chemical and physical analysis of waste water Determination of organic and total nitrogen
CSN 65 4816-1982 Minoral Frrtih/ci^. Mothods o( IJotoriiiinutioii of Potassium Contont
CSN 46 7092-29-1998 Testing methods for feeding stuffs - Part 29: Determination of amonia content in the fish meals
CSN 65 4816 Z1-1995 Minerál Fertilizers. Methods of Determination of Potassium Content
CSN 46 7092-5-1998 Testing methods for feeding stuffs - Part 5: Determination of soluble nitrogen content after treatment with pepsin in hydrochloric acid solution
CSN ISO 7726:1993 Thermal environments. Instruments and methods for measuring physical quantities

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Physical method Nitrogen content

GB/T 12091-1989 Method for determination of nitrogen content in starches and derived products
GB/T 6625-1986 Test methods for nitrogen content of nitrogen-doped getter
GB/T 2441.1-2001 Determination of urea-Determination of total nitrogen content
GB/T 5511-2008 Cereals and pulses.Determination of the nitrogen content and calculation of the crude protein content.Kjeldahl method
GB/T 6609.4-2004 Chemical analysis methods and determination of physical performance of alumina Determination of ferric oxide content-Orthophenanthroline photometric method
GB/T 13598-1992 A method for the determination of agricultural chemical residues containing nitrogenous in tobacco leaves
GB/T 2441.1-2008 Determination of urea.Part 1:Total nitrogen content
GB/T 16555-2008 Chemical analysis of refractories containing carbon and silicon carbide or nitride
GB/T 20124-2006 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method)
GB/T 30655-2014 Test methods for internal quantum efficiency of nitride LED epitaxial layers
GB/T 30653-2014 Test method for crystal quality of Ⅲ-nitride epitaxial layers
GB/T 2910.15-2009 Textiles.Quantitative chemical analysis.Part 15:Mixtures of jute and certain animal fibres(method by determining nitrogen content )
GB/T 10209.1-2008 Determination of monoammonium phosphate and diammonium phosphate.Part 1:Total nitrogen content
GB/T 17767.1-2008 Determination of organic-inorganic compound fertilizers.Part 1:Total nitrogen content
GB/T 6609.5-2004 Chemical analysis methods and determination of physical performance of alumina Determination of sodium oxide content
GB/T 42490-2023 Soil quality Determination of organic carbon content and carbon isotope ratio, total nitrogen content and nitrogen isotope ratio in soil and biological samples Stable isotope ratio mass spectrometry
GB/T 23952-2009 Inorganic chemicals for industrial use.General method for the determination of total nitrogen content.Distillation-acid-base titrations method
GB/T 22596-2008 Water treatment chemicals.General method for determination of iron content
GB/T 22598-2008 Water treatment chemicals.Determination of lead content
GB/T 22599-2008 Water treatment chemicals.Determination of arsenic content
GB/T 2381-1994 Determination of content of insoluble matters in dyestuffs
GB/T 12093-1989 Method for determination of chloride content in starches and derived products
GB/T 2441.6-2001 Determination of urea Determination of water insolution matter content Weight method
GB/T 6609.15-2004 Chemical analysis methods and determination of physical performance of alumina Determination of chlorine content-Ferric thiocyanate photometric method
GB/T 6609.6-2004 Chemical analysis methods and determination of physical performance of alumina Determination of potassium oxide content-Flame photometric method
GB/T 23772-2009 Inorganic chemicals for industrial use.General method for the determination of total nitrogen content.Nessler's reagent colorimetric method
GB/T 6610.4-2003 Chemical analysis methods of aluminium hydroxide Determination of ferric oxide content-Orthophenanthroline photometric method
GB/T 13748.9-2005 Chemical analysis methods of magnesium and magnesium alloys.Determination of iron content.Orthopenanthroline spectrophotometric method

Japanese Industrial Standards Committee (JISC), Physical method Nitrogen content

JIS K 0104:1984 Methods for determination of oxides of nitrogen in flue gases
JIS H 1685:1976 Methods for determination of nitrogen in tantalum
JIS G 1228:1997 Iron and steel -- Methods for determination of nitrogen content
JIS K 0104:2000 Methods for determination of nitrogen oxides in flue gas
JIS G 1228 AMD 1:2006 Iron and steel -- Methods for determination of nitrogen content (Amendment 1)
JIS K 6558-6:2016 Leather -- Determination of nitrogen content and "hide substance" -- Titrimetric method
JIS K 0104:2011 Methods for determination of nitrogen oxides in flue gas
JIS G 1311-7:2012 Method for chemical analysis of ferromanganese -- Part 7: Determination of nitrogen content
JIS G 1313-6:2012 Method for chemical analysis of ferrochromium .Part 6: Determination of nitrogen content
JIS M 8818:1986 Method for determination of mineral matter in coal
JIS K 0105:1982 Methods for determination of fluorine compounds in exhaust gas
JIS M 8705:2013 Iron ores -- Determination of the moisture content of a lot
JIS M 8705:2015 Iron ores -- Determination of the moisture content of a lot

国家市场监督管理总局、中国国家标准化管理委员会, Physical method Nitrogen content

GB/T 40535.1-2021 Test methods of continuous nitride ceramic fibers—Part 1：Nitrogen content

Indonesia Standards, Physical method Nitrogen content

SNI 13-3482-1994 Coal, Determination of nitrogen using Kyeldahl method
SNI 4146-2013
SNI 19-1432-1989 Exhaust-gases, Test methods for nitrogen dioxide content
SNI 19-1502-1989 Test method for nitrogen oxides content of air in working area
SNI 03-4152-1996 Test methods for potassium in light sediment by hydrogen chloride using atomic absorption spectrophotometer apparatus
SNI 06-6989.14-2004 Water and waste water - Part 14: Test methods of dissolved oxygen by iodometry (azide modification)
SNI ISO 1833-15:2011 Textiles - Quantitative chemical analysis - Part 15: Mixtures of jute and certain animal fibres (method by determining nitrogen content)
SNI 13-3999-1995 Determination of volatile content of coal
SNI 06-6875-2002 Test methods of sulphides content in water by iodometry
SNI 13-3479-1994 Coal, Determination of carbon content fixed
SNI 13-6793-2002 Test methods for moisture, ash, and organic matter of peat and other organic soils
SNI 19-1431-1989 Exhaust gases, Test methods for chloride content
SNI 19-1433-1989 Exhaust - gases, Test method for fluoric compound content
SNI 07-3652-1995 Steel - Determination of non metal inclusions - Micrographic method using standard diagram
SNI 13-3493-1994 Tin ingots, Test methods for chemical composition by atomic absorption spectrophotometers
SNI 03-3640-1994 Test method of asphalt content in asphalt mixture by extraction use soklet instrument
SNI 03-3408-1994 Methods of measurement for flow velocity on physical models by current measuring instrument propeler types

Korean Agency for Technology and Standards (KATS), Physical method Nitrogen content

KS D 2555-2005 Methods for determination of nitrogen in tantalum
KS D 2530-2007 Methods for determination of nitrogen in titanium and titanium alloys
KS D 1811-2003 Methods for determination of nitrogen in iron and steel
KS M ISO 5397-2002(2017) Leather－Determination of nitrogen content and “hide substance”－Titrimetric method
KS M ISO 5397-2002(2022) Leather－Determination of nitrogen content and “hide substance”－Titrimetric method
KS M 2112-2011 Crude petroleum and petroleum products-Determination of nitrogen content
KS K 0231-2019 Test method for resin content in resin finished textiles
KS K 0230-2006 Test method for formaldehyde content of resin treated fabric：Sealed jar method
KS K 0230-1986 Test method for formaldehyde content of resin treated fabric：Sealed jar method
KS K ISO 1833-15:2022 Textiles — Quantitative chemical analysis —Part 15: Mixtures of jute with certain animal fibres (method by determining nitrogen content)
KS E 3733-1989 Determination or Carbon Monoxide and Temperature in Combustion Gases of Holed Briquette
KS H ISO 1871-2013(2018) Agricultural food products ― General directions for the determination of nitrogen by the Kjeldahl method
KS F 2104-2008 Testing method of organic matter in soils by ignition loss
KS F 2104-2013 Standard test method of organic matter contents in soils by ignition loss
KS D ISO 10720:2003 Steel and iron-Determination of nitrogen content-Thermal conductimetric method after fusion in a current of inert gas
KS K ISO 1833-15:2018 Textiles — Quantitative chemical analysis — Part 15: Mixtures of jute and certain animal fibres (method by determining nitrogen content)
KS M ISO 7408-2007(2012) Fertilizers－Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide－Titrimetric method
KS F 2354-2013 Standard test method for asphalt content from asphalt paving mixtures
KS F 2354-1982 Standard test method for asphalt content from asphalt paving mixtures
KS D ISO 10700-2008(2018) Steel and iron－Determination of manganese content－Flame atomic absorption spectrometric method
KS F 2717-2008 Standard test methods for chloride ion content in hardened concrete
KS F 2717-2013 Standard test method for chloride ion content in hardened concrete
KS F 2327-2007 Testing method for cement content of soil－cement mixture
KS M ISO 7408:2007 Fertilizers-Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide-Titrimetric method
KS M ISO 7408:2013 Fertilizers－Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide－Titrimetric method
KS K 0735-2007 Test method for the determination of carcinogenic dyes in textiles

Jilin Provincial Standard of the People's Republic of China, Physical method Nitrogen content

DB22/T 1932-2013 Determination method of total nitrogen content in peat (Kjeldahl method)

Professional Standard - Military and Civilian Products, Physical method Nitrogen content

WJ 2128-1993 Method for Determination of Nitrogen Content in Primer
WJ 36-2005 Test method of nitrocellulose.Nitrogen content.Devarda alloy reduction method
WJ 2707.4-2008 Test methods for physical and chemical properties of cloud blasting agents Part 4: Iron content
WJ 2707.5-2008 Test methods for physical and chemical properties of cloud explosives Part 5: Silicon content
WJ 2707.6-2008 Test methods for physical and chemical properties of cloud blasting agents Part 6: Lead content

PT-IPQ, Physical method Nitrogen content

NP 1996-2000 Cereals and pulses Determiantion of the nitrogen content and calculation of the raw protein content Kjeldhal method
NP 1612-2002 Meat and meat products Determination of nitrogen content Reference method
NP 4154-1991 Animal feeding stuffs Determination of volatile nitrogenous bases. Distillation méthod
NP 3779-1988 Leather Determination of nitrogen content and hide substance. Titrimetric method

Yunnan Provincial Standard of the People's Republic of China, Physical method Nitrogen content

DB5301/T 61-2021 Measuring method of nitrogen and phosphorus in algae mud of Dianchi Lake cyanobacteria treatment station

American Society for Testing and Materials (ASTM), Physical method Nitrogen content

ASTM D2868-17 Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather, Wet Blue and Wet White
ASTM D2868-07 Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather
ASTM D3533-90(1995)e1 Standard Method of Rubber8212;Nitrogen Content
ASTM D3533-90(2001) Standard Test Method for Rubber8212;Nitrogen Content
ASTM D3533-05 Standard Test Method for Rubber—Nitrogen Content
ASTM D2868-96 Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather
ASTM D2868-96(2001) Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather
ASTM D2868-10 Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather
ASTM D2868-10(2015) Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather, Wet Blue and Wet White
ASTM D3608-95(2000)e1 Standard Test Method for Nitrogen Oxides (Combined) Content in the Atmosphere by the Griess-Saltzman Reaction
ASTM D3608-95(2011) Standard Test Method for Nitrogen Oxides (Combined) Content in the Atmosphere by the Griess-Saltzman Reaction
ASTM D3608-19 Standard Test Method for Nitrogen Oxides (Combined) Content in the Atmosphere by the Griess-Saltzman Reaction
ASTM D4795-94(1998) Standard Test Method for Nitrogen Content of Soluble Nitrocellulose-Alternative Method
ASTM E258-67(2002) Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D4795-94(2003) Standard Test Method for Nitrogen Content of Soluble Nitrocellulose8212;Alternative Method
ASTM D4795-94(2008) Standard Test Method for Nitrogen Content of Soluble Nitrocellulosex2014;Alternative Method
ASTM D1607-91(2000)e1 Standard Test Method for Nitrogen Dioxide Content of the Atmosphere (Griess-Saltzman Reaction)
ASTM D6016-96 Standard Test Method for Determination of Nitrogen, Water Extractable in Leather
ASTM D6016-96(2001) Standard Test Method for Determination of Nitrogen, Water Extractable in Leather
ASTM D1607-91(2018)e1 Standard Test Method for Nitrogen Dioxide Content of the Atmosphere (Griess-Saltzman Reaction)
ASTM D3608-95(2005) Standard Test Method for Nitrogen Oxides (Combined) Content in the Atmosphere by the Griess-Saltzman Reaction
ASTM D1607-91(2005) Standard Test Method for Nitrogen Dioxide Content of the Atmosphere (Griess-Saltzman Reaction)
ASTM E1019-00 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM E1019-18 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM E258-07 Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM E1019-03 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM E1019-02 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM D1607-91(2011) Standard Test Method for Nitrogen Dioxide Content of the Atmosphere (Griess-Saltzman Reaction)
ASTM D3824-95(2005) Standard Test Methods for Continuous Measurement of Oxides of Nitrogen in the Ambient or Workplace Atmosphere by the Chemiluminescent Method
ASTM D3824-12 Standard Test Methods for Continuous Measurement of Oxides of Nitrogen in the Ambient or Workplace Atmosphere by the Chemiluminescent Method

BG-BDS, Physical method Nitrogen content

BGC ISO 5983:2001 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Kjeldahl method

Danish Standards Foundation, Physical method Nitrogen content

DS/EN ISO 20483:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
DS/EN ISO 5983-1/AC:2009 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method
DS/EN ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method
DS/ISO 29541:2011 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen content - Instrumental method
DS/EN 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
DS/EN ISO 14891:2002 Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle
DS/EN 15407:2011 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H) and nitrogen (N) content
DS/EN ISO 1833-15:2010 Textiles - Quantitative chemical analysis - Part 15: Mixtures of jute and certain animal fibres (method by determining nitrogen content)
DS/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
DS/EN ISO 16634-1:2009 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 1: Oilseeds and animal feeding stuffs
DS/CEN ISO/TS 16634-2:2009 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 2: Cereals, pulses and milled cereal products
DS/ISO 22863-10:2021 Fireworks – Test methods for determination of specific chemical substances – Part 10: Nitrogen content in nitrocellulose by iron(II) sulfate titration
DS/EN 27726:1994 Thermal environments-Instruments and methods for measuring physical quantities
DS/EN ISO 15351:2010 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method)

Association Francaise de Normalisation, Physical method Nitrogen content

NF EN ISO 20483:2014 Céréales et légumineuses - Détermination de la teneur en azote et calcul de la teneur en protéines brutes - Méthode de Kjeldahl
NF EN 16168:2012 Boues, biodéchets traités et sols - Détermination de la teneur totale en azote par combustion sèche
NF EN ISO 5983-1:2005 Aliments des animaux - Détermination de la teneur en azote et calcul de la teneur en protéines brutes - Partie 1 : méthode Kjeldahl
NF V18-120:1997 Animal feeding stuffs. Determination of nitrogen content. Combustion method (DUMAS).
NF U42-503*NF EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
NF EN 15750:2010 Engrais - Détermination de la teneur en azote total des engrais ne contenant l'azote que sous forme nitrique, ammoniacale et uréique, selon deux méthodes différentes
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 X31-505:1992 Soil quality - Physical methods - Method for determining the bulk volume and the water content of lumps of earth
NF EN ISO 14891:2003 Lait et produits laitiers - Détermination de la teneur en azote - Méthode pratique par combustion selon le principe de Dumas
NF X34-117:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods.
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 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 A06-559*NF EN ISO 15351:2010 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method)
NF X34-220:2011 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H) and nitrogen (N) content.
NF V04-221-1*NF EN ISO 8968-1:2014 Milk and milk products - Determination of nitrogen content - Part 1 : Kjeldahl principle and crude protein calculation
NF G06-006-15*NF EN ISO 1833-15:2019 Textiles - Quantitative chemical analysis - Part 15 : mixtures of jute with certain animal fibres (method by determining nitrogen content)
NF V04-396*NF EN ISO 14891:2003 Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle.
NF V03-767-2*NF EN ISO 16634-2:2016 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 2 : cereals, pulses and milled cereal products
NF EN ISO 16634-1:2008 Produits alimentaires - Détermination de la teneur en azote total par combustion selon le principe Dumas et calcul de la teneur en protéines brutes - Partie 1 : graines oléagineuses et aliments des animaux
NF EN ISO 1833-15:2019 Textiles - Analyse chimique quantitative - Partie 15 : mélanges de jute avec certaines fibres animales (méthode par détermination de la teneur en azote)
NF EN ISO 21663:2020 Combustibles solides de récupération - Méthodes de détermination de la teneur en carbone (C), hydrogène (H), azote (N) et soufre (S) par la méthode instrumentale
FD X85-003*FD CEN/TR 16721:2014 Bio-based products - Overview of methods to determine the bio-based content
NF EN IEC 63355:2022 Systèmes de gestion de câblage - Méthode d'essai relative à la teneur en halogènes
FD CEN/TR 16721:2014 Produits biosourcés - Vue d'ensemble des méthodes pour déterminer la teneur en biosourcée

German Institute for Standardization, Physical method Nitrogen content

DIN EN ISO 20483:2014-03 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2013); German version EN ISO 20483:2013
DIN CEN/TS 15750:2008 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version CEN/TS 15750:2008
DIN EN ISO 5983-1 Berichtigung 1:2009-07 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005); German version EN ISO 5983-1:2005, Corrigendum to DIN EN ISO 5983-1:2005-10; German version EN ISO 5983-1:20...
DIN EN ISO 5983-1:2005-10 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005); German version EN ISO 5983-1:2005
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 20483:2014 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2013); German version EN ISO 20483:2013
DIN EN ISO 8968-4:2016-09 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method) (ISO 8968-4:2016); German version EN ISO 8968-4:2016
DIN EN ISO 14891:2002-07 Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle (ISO 14891:2002); German version EN ISO 14891:2002
DIN EN ISO 1833-15:2020-03 Textiles - Quantitative chemical analysis - Part 15: Mixtures of jute with certain animal fibres (method by determining nitrogen content) (ISO 1833-15:2019); German version EN ISO 1833-15:2019
DIN EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version EN 15750:2009
DIN EN 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods; German version EN 15104:2011
DIN EN ISO 5983-2:2009-10 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2: Block digestion and steam distillation method (ISO 5983-2:2009); German version EN ISO 5983-2:2009
DIN EN ISO 16634-1:2009-07 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 1: Oilseeds and animal feeding stuffs (ISO 16634-1:2008); German version EN ISO 16634-1:2008
DIN EN ISO 1833-15:2020 Textiles - Quantitative chemical analysis - Part 15: Mixtures of jute with certain animal fibres (method by determining nitrogen content) (ISO 1833-15:2019)
DIN EN ISO 15351:2010-08 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method) (ISO 15351:1999); German version EN ISO 15351:2010
DIN CEN/TR 16721:2014-12*DIN SPEC 35802:2014-12 Bio-based products - Overview of methods to determine the bio-based content; German version CEN/TR 16721:2014
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

ZA-SANS, Physical method Nitrogen content

SANS 970:2010 Leather - Determination of nitrogen content and "hide substance" - Titrimetric method
SANS 12902:2007 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
SANS 5276:2005 Non-fibrous material content of textiles (physical separation method)

Military Standard of the People's Republic of China-General Armament Department, Physical method Nitrogen content

GJB 770.303-1989 Test methods for gunpowder analysis: Determination of nitrogen content of nitrocellulose. Five-tube nitrogen meter method
GJB 337-1987 Determination method of nitrogen content of nitrocellulose (interferometer method)
GJB 337-1987(XG1-2015) Modification sheet 1-2015 for determination method of nitrogen content of nitrocellulose
GJB 533.5-1988 Detection method for 45 components of submarine cabin air. Determination of nitrogen oxide content. Calibration tube method
GJB 2589.20A-2021 Test methods for physical and chemical properties of military leather fur Part 20: Determination of nitrogen content and cortex
GJB 770.308-1990 Test methods for gunpowder analysis Determination of nitrogen content of nitrocellulose Ferrous iron-titanium chloride method
GJB 8682.11-2015 Methods of chemical analysis of pyrotechnics Part 11: Determination of barium nitrate content and nitrogen determination method

VN-TCVN, Physical method Nitrogen content

TCVN 3706-1990 Aquatic products.Method for the determination of nitrogen ammonia content
TCVN 3707-1990 Aquatic products.Method for the determination of amine ammonia nitrogen content
TCVN 305-2010 Steel and iron.Determination of nitrongen content.Methods of chemical analysis.
TCVN 3708-1990 Aquatic products.Method for the determination of nitrogen amino acid content
TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 4328-1-2007 Animal feeding stuffs.Determination of nitrogen content and calculation of crude protein content.Part 1: Kjeldahl method
TCVN 3894-1984 Mineral oils.Method for the determination of gum content
TCVN 5465-15-2009 Textiles.Quantitative chemical analysis.Part 15: Mixtures of jute and certain animal fibres (method by determining nitrogen content)
TCVN 3663-1981 Liquors.Method for the determination of total extract content
TCVN 4328-2-2011 Animal feeding stuffs.Determination of nitrogen content and calculation of crude protein content.Part 2: Block digestion and steam distillation method

Professional Standard - Building Materials, Physical method Nitrogen content

JC/T 2342-2015 Method for the quantitative phase analysis of silicon nitride
JC/T 770-1989 Standard test method for finish content of woven glass fabric,cleaned and after-finished
JC/T 776-2004 Test method for volatile content of prepreg

British Standards Institution (BSI), Physical method Nitrogen content

BS EN 15750:2010 Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS ISO 17997-2:2005 Milk - Determination of casein-nitrogen content - Direct method
BS DD CEN/TS 15104:2006 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
BS DD CEN/TS 15104:2005 Solid biofuels — Determination of total content of carbon, hydrogen and nitrogen — Instrumental methods
BS ISO 17997-1:2005 Milk - Determination of casein-nitrogen content - Indirect method (Reference method)
BS 5766-15:1997 Methods for analysis of animal feeding stuffs. Determination of soluble nitrogen content after treatment with pepsin in dilute hydrochloric acid
BS 5551-4.1.4:1984 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide (titrimetric method)
BS 4267-2:1988 Ammonium nitrate - Method for determination of total nitrogen content
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 1833-15:2011 Textiles. Quantitative chemical analysis. Mixtures of jute and certain animal fibres (method by determining nitrogen content)
BS EN ISO 1833-15:2010 Textiles. Quantitative chemical analysis. Mixtures of jute and certain animal fibres (method by determining nitrogen content)
BS 5551-4.1.3:1986 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation)
BS DD CEN/TS 15407:2006 Solid recovered fuels - Method for the determination of carbon (C), hydrogen (H) and nitrogen (N) content
BS 4267-1:1988 Ammonium nitrate - Method for determination of ammoniacal nitrogen content
BS ISO 937:2023 Meat and meat products. Determination of nitrogen content. Reference method
BS EN ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of 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 EN ISO 1833-15:2019 Textiles. Quantitative chemical analysis - Mixtures of jute with certain animal fibres (method by determining nitrogen content)
BS ISO 29541:2010 Solid mineral fuels. Determination of total carbon, hydrogen and nitrogen content. Instrumental method
BS 4258-10:1978 Methods of test for phosphoric acid (orthophosphoric acid) for industrial use - Determination of oxides of nitrogen content
BS 5551 SubSec.4.1.3:1986 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation)
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 4401-2:1980 Methods of test for meat and meat products. Determination of nitrogen content (reference method)
BS 5551 SubSec.4.1.4:1984 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide (titrimetric method)
BS EN 15104:2011 Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen. Instrumental methods
BS DD CEN ISO/TS 16634-2:2010 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Cereals, pulses and milled cereal products
BS EN 15407:2011 Solid recovered fuels. Methods for the determination of carbon (C), hydrogen (H) and nitrogen (N) content
DD CEN/TS 15407:2006 Solid recovered fuels — Method for the determination of carbon (C), hydrogen (H) and nitrogen (N) content
22/30444436 DC BS ISO 937. Meat and meat products. Determination of nitrogen content. Reference method
BS 684-1.16:1981 Methods of analysis of fats and fatty oils. Physical methods. Determination of water content: entrainment method
BS 6068-2.17:1986 Water quality - Physical, chemical and biochemical methods - Methods for determination of total cyanide
DD ISO/TS 12902:2002 Solid mineral fuels. Determination of total carbon, hydrogen and nitrogen. Instrumental methods
BS EN ISO 16634-2:2016 Tracked Changes. Food products. Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content. Cereals, pulses and milled cereal products
BS EN ISO 14891:2002 Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle
BS 1742-5.1:1991 Methods for chemical analysis of condensed milks - Determination of nitrogen content - Reference method
BS 1742-5.2:1991 Methods for chemical analysis of condensed milks - Determination of nitrogen content - Routine method
BS 7755-5.2:1996 Soil quality. Physical methods. Determination of water content in the unsaturated zone. Neutron depth probe method
BS 5551 Sec.3.4:1987 Fertilizers. Physical properties. Method for determination of oil retention of high nitrogen content, straight ammonium nitrate fertilizers
BS 6068-2.18:1986 Water quality - Physical, chemical and biochemical methods - Methods for the determination of easily liberatable cyanide
BS ISO 22863-10:2021 Fireworks. Test methods for determination of specific chemical substances. Nitrogen content in nitrocellulose by iron(II) sulfate titration
BS 6068-2.33:1987 British Standard Water quality - Part 2. Physical, chemical and biochemical methods - Section 2.33 Method for the determination of ammonium: automated spectrometric method
BS EN ISO 10695:2000 Water quality. Determination of selected organic nitrogen and phosphorus compounds. Gas chromatographic methods
BS 6068-2.40:1991 Water quality. Physical, chemical and biochemical methods. Method for the determination of borate by spectrometry using azomethine-H
BS 7755-5.5:1999 Soil quality - Physical methods - Laboratory methods
BS DD CEN/TS 14774-1:2004 Solid biofuels - Methods for the determination of moisture content - Oven dry method - Total moisture - Reference method
BS DD CEN/TS 14774-2:2004 Solid biofuels - Methods for the determination of moisture content - Oven dry method - Total moisture - Simplified method
BS 1742 Sec.5.2:1991 Methods for chemical analysis of condensed milks. Determination of nitrogen content. Routine method
BS 1741-5.2:1990 Methods for chemical analysis of liquid milk and cream - Determination of the nitrogen content of liquid milk - Routine method
BS DD CEN/TS 15148:2005 Solid biofuels — Method for the determination of the content of volatile matter
BS DD CEN/TS 15148:2006 Solid biofuels - Method for the determination of the content of volatile matter
BS EN ISO 15351:2010 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method)
BS EN 16640:2017 Bio-based products. Bio-based carbon content. Determination of the bio-based carbon content using the radiocarbon method
BS EN 15440:2011 Solid recovered fuels. Methods for the determination of biomass content
BS EN ISO 21644:2021 Solid recovered fuels. Methods for the determination of biomass content
BS 5551-3.4:1987 Fertilizers. Physical properties. Method for determination of oil retention of high nitrogen content, straight ammonium nitrate fertilizers
BS 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 (ISO 5983-2:2009)
BS EN 50642:2018+A1:2022 Cable management systems. Test method for content of halogens
BS EN 50642:2018 Cable management systems. Test method for content of halogens
BS EN 16279:2012 Animal feeding stuffs. Determination of fluoride content after hydrochloric acid treatment by ion-sensitive electrode method (ISE)
BS 6068-2.31:1987 Water quality - Physical, chemical and biochemical methods - Method for determination of manganese: formaldoxime spectrometric method
BS 7755-3.1:1994 Soil quality. Chemical methods. Determination of dry matter and water content on a mass basis by a gravimetric method

European Committee for Standardization (CEN), Physical method Nitrogen content

PD CEN/TS 15750:2008 Fertilizers - Determination of different forms of nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
EN ISO 20483:2013 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
EN ISO 14891:2002 Milk and Milk Products - Determination of Nitrogen Content - Routine Method Using Combustion According to the Dumas Principle
EN 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
EN ISO 20483:2006 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
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 1833-15:2019 Textiles - Quantitative chemical analysis - Part 15: Mixtures of jute with certain animal fibres (method by determining nitrogen content) (ISO 1833-15:2019)
EN ISO 1833-15:2010 Textiles - Quantitative chemical analysis - Part 15: Mixtures of jute and certain animal fibres (method by determining nitrogen content) (ISO 1833-15:2006)
CEN ISO/TS 16634-2:2009 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 2: Cereals, pulses and milled cereal products
EN 16168:2012 Sludge, treated biowaste and soil - Determination of total nitrogen using dry combustion method
EN ISO 15351:2010 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method) (ISO 15351:1999)
EN 16640:2017 Bio-based products - Bio-based carbon content - Determination of the bio-based carbon content using the radiocarbon method
EN ISO 21644:2021 Solid recovered fuels - Methods for the determination of biomass content (ISO 21644:2021, Corrected version 2021-03)

Lithuanian Standards Office , Physical method Nitrogen content

LST EN ISO 20483:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2006)
LST 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)
LST EN ISO 5983-1:2005/AC:2009 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005/Cor 1:2008)
LST EN 15104-2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
LST ISO 937:2000 Meat and meat products. Determination of nitrogen content (Reference method) (idt ISO 937:1978(E))
LST EN 15407-2011 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H) and nitrogen (N) content
LST ISO 5397:2001 Leather. Determination of nitrogen content and "hide substance". Titrimetric method (identical ISO 5397:1984)
LST EN ISO 14891:2003 Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle (ISO 14891:2002)
LST EN ISO 1833-15:2011 Textiles - Quantitative chemical analysis - Part 15: Mixtures of jute and certain animal fibres (method by determining nitrogen content) (ISO 1833-15:2006)
LST 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 (ISO 5983-2:2009)

未注明发布机构, Physical method Nitrogen content

BS EN ISO 5983-1:2005(2009) Animal feeding stuffs — Determination of nitrogen content and calculation of crude protein content — Part 1 : Kjeldahl method
BS 4267-2:1988(1999) Ammonium nitrate — Part 2 : Method for determination of total nitrogen content
BS 4267-1:1988(1999) Ammonium nitrate — Part 1 : Method for determination of ammoniacal nitrogen content
BS 4938-1:1982(2011) Dirt content of milk — Part 1 : Method for the determination of dirt content (reference method)

ES-UNE, Physical method Nitrogen content

UNE-EN ISO 5983-1:2007/AC:2009 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005/Cor 1:2008)
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 ISO 1833-15:2020 Textiles - Quantitative chemical analysis - Part 15: Mixtures of jute with certain animal fibres (method by determining nitrogen content) (ISO 1833-15:2019)
UNE-EN ISO 16634-2:2016 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 2: Cereals, pulses and milled cereal products (ISO 16634-2:2016)
UNE-CEN/TR 16721:2014 Bio-based products - Overview of methods to determine the bio-based content (Endorsed by AENOR in December of 2014.)

AENOR, Physical method Nitrogen content

UNE-EN ISO 20483:2014 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2013)
UNE 59018:1986 LEATHER. DETERMINATION OF NITROGEN CONTENT AND "HIDE SUBSTANCE". TITRIMETRIC METHOD
UNE-EN ISO 5983-1:2007 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005)
UNE-EN 15407:2011 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H) and nitrogen (N) content
UNE-EN ISO 14891:2002 Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle. (ISO 14891:2002)
UNE-EN ISO 1833-15:2011 Textiles - Quantitative chemical analysis - Part 15: Mixtures of jute and certain animal fibres (method by determining nitrogen content) (ISO 1833-15:2006)
UNE-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 (ISO 5983-2:2009)

Professional Standard - Aerospace, Physical method Nitrogen content

QJ 2781A-2004 Determination of the carbon content,the hydrogen content and the nitrogen contene of carbonaceous material
QJ 2781-1995 Method for Determination of Carbon, Hydrogen and Nitrogen Content in Carbon Materials

Malaysia Standards, Physical method Nitrogen content

MS 880 Pt.2-1984

TH-TISI, Physical method Nitrogen content

TIS 2255.1-2005 Animal feeding stuff s-determination of nitrogen content and calculation of crude protein content.part 1: kjeldahl method
TIS 2255.2-2005 Animal feeding stuffs-determination of nitrogen content and calculation of crude protein content.part 2: block digestion/steam distillation method

International Organization for Standardization (ISO), Physical method Nitrogen content

ISO 5397:1984 | IULTCS/IUC 10 Leather — Determination of nitrogen content and "hide substance" — Titrimetric method
ISO 8968-1:2001 Lait - Détermination de la teneur en azote - Partie 1: Méthode Kjeldahl (Deuxième édition)
ISO 8968-1:2001|IDF 20-1:2001 Determination of milk nitrogen content Part 1: Kjeldahl method
ISO/FDIS 937 Meat and meat products — Determination of nitrogen content — Reference method
ISO/DIS 937 Meat and meat products — Determination of nitrogen content — Reference method
ISO 937:2023 Meat and meat products — Determination of nitrogen content — Reference method
ISO 20483:2013 Cereals and pulses.Determination of the nitrogen content and calculation of the crude protein content.Kjeldahl method
ISO/TS 12902:2001 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
ISO/CD 29541:1976 Solid mineral fuels — Determination of total carbon, hydrogen and nitrogen content — Instrumental method
ISO 7408:1983 Fertilizers; Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide; Titrimetric method
ISO 29541:2010 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen content - Instrumental method
ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method
ISO 14891:2002 | IDF 185:2002 Milk and milk products — Determination of nitrogen content — Routine method using combustion according to the Dumas principle
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 15351:1999 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method)
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 14891:2002 Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle
ISO 14891:2002|IDF 185:2002 Determination of nitrogen content in milk and milk products using the conventional combustion method according to the Dumas principle
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
ISO 5983-1:2005/cor 1:2008 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method; Technical Corrigendum 1
ISO 21644:2021 Solid recovered fuels - Methods for the determination of biomass content

CU-NC, Physical method Nitrogen content

NC 24-64-1986 Inorganic Chemical Products Nitrogen, Determination of Oil Content
NC 24-65-1986 Inorganic Chemical Products Nitrogen. Determination of Water Vapor Content. Aerial Water Point Method
NC 26-76-1990 Drugs. Determination of Total Ashes. Testing Method
NC 44-08-3-1986 Ores. Cobalt and Nickel Sulfide Concentrate. Photometric Determination of Cobalt R-Nitrous Salt Method

TR-TSE, Physical method Nitrogen content

TS 2428-1976 METHODS FOR THE CHEMICAL ANALYSIS OF IRON AND STEELS DETERMINATION OF NITROGEN CONTENT
TS 3651-1981 METHODS FOR THE ANALYSIS OF WATER — DETERMINATION OF IRON CONTENT — 1,10 Phenanthroline Spectrophotometry Method

PL-PKN, Physical method Nitrogen content

PN Z04075-1961 Speedy Me?hod for De?er mina?ion of Ni?rogen Oxyde* in Air
PN A79528-17-1993 Spirit (ethyl alcohol). Methods of tests. Determination of voltile nitrogen basen content
PN BN 7308-09-1967
PN A75101-03-1990 Fruit and vegetable products -- Preparation of samples and physical and chemical test methods -- Determination of dry matter content by gravimetric method
PN A74855-11-1987 Sugar Test methods Determination of arsenie content
PN Z04009-04-1993 Air purity protection. Tests for content of nitrogen and its compounds. Determination of nitrates in dust in ambient air (imission) by spectrophotometric method with sodium salicilate
PN A74855-04-1987 Sugar Test methods Determinution of moisturc content and dry substance by calculation

BE-NBN, Physical method Nitrogen content

NBN V 21-013-1978 Determination of the total nitrogen contaimng substances content of milk - Amido black method
NBN T 04-301-1983 Urea for industrial use - Determination of nitrogen content - Titrimetric raethod after distillation
NBN T 94-301-1976 Determination of nitrogen dioxyde contents of ambient air -Griess-Saltzman method
NBN T 94-302-1976 Determination of nitrogen oxydes and of nitrogen monoxyde contents of ambient air - Griess-Saltzman method
NBN T 04-304-1983 Urea for indus trial use - Determination of iron content-2,2'-Bipyridyl photometric method
NBN B 13-202-1976

Professional Standard - Commodity Inspection, Physical method Nitrogen content

SN/T 0736.5-1999 Chemical analysis of fertilizers for import and export.Determination of nitrogen content
SN/T 0541.5-2009 Inspecting method of import and export standard rubber.Determination of nitrogen content
SN/T 0736.11-2002 Chemical analysis of fertilizers for import and export.Determination of nitrogen content by auto analyzer
SN/T 0736.5-2010 Test method of import and export fertilizers.Part 5: Determination of nitrogen content
SN/T 3005-2011 Test method for instrumental determination of carbon,hydrogen,nitrogen and sulfur in organic chemicals
SN/T 0481.9-2010 Methods for inspection of bauxite for export.Part 9:Determination of free iron content.1,10-Phenanthroline spectrophotometric method

Group Standards of the People's Republic of China, Physical method Nitrogen content

T/CMES 01011-2023 Determination method for content of nitrogen, sulfur and phosphorus in recycled sand for foundry
T/NAIA 0139-2022 Diesel engine nitrogen oxide reducing agent urea aqueous solution (AUS 32) Determination of urea content Automatic Kjeldahl method

工业和信息化部/国家能源局, Physical method Nitrogen content

JB/T 13306-2017 Method for detecting impurity content in superabrasive cubic boron nitride

YU-JUS, Physical method Nitrogen content

JUS H.G8.064-1983 Reagents. Copper sulphate pentahydrate. Determination of total nitrogen content. Colorimetric method
JUS B.H8.320-1988 Methods of analysis of coal and coke. Determination of nitrogen ccmtent - Makro Kjeldahl nethod
JUS F.S3.143/1-1992 Testing (Quantitative analysis) of fibres mixtures. Binary mixtures of jute and certain animal fibres. Method by determining nitrogen content. Amendments
JUS F.S3.143-1982 Testing (Quantitative analysis) mixtures of fibres. Binary mixtures of jute and certain animal fibres. Method contain nitrogen

NL-NEN, Physical method Nitrogen content

NEN 2044-1985 Air quahty - txhaust gases Wet chemical determination of nitrogen oxides content
NEN 3761-1979 Cheese - Physical and chemical test methods - Determination of the chloride content (reference method)
NEN 3758-1980 Cheese - Physical and chemical test methods - Determination of the fat content (routine method)
NEN 3754-1981 Cheese - Physical and chemical test methods - Determination of the moisture content (reference method)
NEN 3757-1979 Cheese - Physical and chemical test methods - Determination of the fat content (reference method)
NEN 3769-1981 Cheese - Physical and chemical test methods - Enzymatic determination of the lactose content
NEN 3771-1979 Cheese - Physical and chemical test methods - Determination of the sodium and the potassium content by flame photometry
NEN 3759-1979 Cheese - Physical and Chemical test methods - Determination of the fat content of whey cheese
NEN 3235 8.3-1978 Test methods for waste water. Photometric rietermination of sulphide content

CEN - European Committee for Standardization, Physical method Nitrogen content

EN ISO 8968-4:2001 Milk - Determination of Nitrogen Content - Part 4: Determination of Non-Protein Nitrogen Content
PD CEN/TS 15104:2005 Solid biofuels - Determination of total content of carbon@ hydrogen and nitrogen - Instrumental methods
PD CEN/TS 15407:2006 Solid recovered fuels - Method for the determination of carbon (C)@ hydrogen (H) and nitrogen (N) content
PD CEN/TS 15148:2005 Solid biofuels - Method for the determination of the content of volatile matter

PH-BPS, Physical method Nitrogen content

PTS 83-1970 Method of Test for the Determination of Nitrogen Content of Nitrate-Free Fertilizers

Professional Standard - Non-ferrous Metal, Physical method Nitrogen content

YS/T 581.7-2006 Determination of chemical contents and physical properties of aluminium fluoride Part 7:Determination of iron content by orthophenantholine photometric method
YS/T 273.7-2006 Chemical analysis methods and physical properties of cryolite. Part 7:Determination of iron content by orthophenantholine photometric method
YS/T 581.4-2006 Determination of chemical contents and physical properties of aluminium fluoride Part 4:Determination of aluminium by the EDTA volumetric method
YS/T 273.4-2006 Chemical analysis methods and physical properties of cryolite. Part 4:Determination of aluminium by the EDTA volumetric method
YS/T 581.1-2006 Determination of chemical contents and physical properties of aluminium fluoride Part 1:Determination of moisture content by gravimetric method
YS/T 273.1-2006 Chemical analysis methods and physical properties of cryolite. Part 1:Determination of moisture content by gravimetric method
YS/T 581.3-2012 Determination of chemical contents and physical properties of aluminium fluoride.Part 3:Determination of fluoride content
YS/T 273.3-2012 Chemical analysis methods and physical properties of cryolite.Part 3:Determination of fluoride content
YS/T 273.10-2006 Chemical analysis methods and physical properties of cryolite. Part 10:Determination of alumina content by gravimetric method
YS/T 438.5-2001 Methods for physical performance determination of sandy alumina.Determination of α-alumina content.X-ray diffraction spectrum method
YS/T 534.4-2006 Aluminum Hydroxide Chemical Analytical Method for the Determination of Ferric Oxide by O-Phenanthrophenanthrene Spectrophotometry
YS/T 581.3-2006 Determination of chemical contents and physical properties of aluminium fluoride Part 3:Determination of fluoride content distillation-thorium nitrate titration volumetric method
YS/T 581.8-2006 Determination of chemical contents and physical properties of aluminium fluoride Part 8:Determination of sulphate content by barium sulphate gravimetric method
YS/T 273.3-2006 Chemical analysis methods and physical properties of cryolite. Part 3:Determination of fluoride content by distillation-thorium nitrate titration
YS/T 273.8-2006 Chemical analysis methods and physical properties of cryolite. Part 8:Determination of sulphate content by barium sulphate gravimetric method

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

GB/T 16555-2017 Chemical analysis of refractories containing carbon and silicon carbide or nitride
GB/T 35812-2018 Method for analysis of forestry biomass—Determination of insoluble solids following pretreatment

Standard Association of Australia （SAA）, Physical method Nitrogen content

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 2300.1.2.2:2008 Methods of chemical and physical testing for the dairying industry Method 1.2.2: General methods and principles- Determination of nitrogen—Nitrogen fractions from milk
AS 2300.1.2.2:1988 Methods of chemical and physical testing for the dairying industry - General methods and principles - Determination of nitrogen - Nitrogen fractions from milk
AS 2300.4.8:1994 Methods of chemical and physical testing for the dairying industry - Dried milk and dried milk products - Determination of undenatured whey protein nitrogen (UDWPN) in dried skim milk
AS 1050.12:1983 Methods for the analysis of iron and steel - Determination of nitrogen in steel (steam distillation titrimetric method)
AS 2300.1.2.1:1991 Methods of chemical and physical testing for the dairying industry - General methods and principles - Determination of nitrogen - Reference Kjeldahl method

Professional Standard - Aviation, Physical method Nitrogen content

HB 5297.25-2001 Methods of chemical analysis of titanium alloys - Determination of nitrogen content by steam distillation
HB 5219.19-1998 Determination of Cerium Content by Spectrophotometric Method of Tribromoarsine in Magnesium Alloy
HB 5422.23-1989 Determination of zirconium content by arsenazoⅢ absorptiophotometric method for chemical analysis of copper alloy
HB 5297.17-2001 Chemical Analysis Method of Titanium Alloy AzoarsenicⅢ Spectrophotometric Determination of Zirconium Content
HB 5220.48-1995 Superalloy Chemical Analysis Method Water Steam Distillation - Volumetric Method (or Absorptiometry) Determination of Nitrogen Content
HB 5297.20-2001 Chlorophosphine azo Ⅲ Spectrophotometric Method for Chemical Analysis of Titanium Alloy Determination of Cerium Content
HB 5297.24-2001 Determination of Oxygen and Nitrogen Content by Pulse Heating Infrared Thermal Conductivity Method for Chemical Analysis of Titanium Alloy
HB 5220.42-1995 Determination of Cerium Content by DBC-Arsenazo Absorption Spectrophotometry Method for Chemical Analysis of Superalloys
HB 5220.43-1995 Determination of Lanthanum Content by DBC-Arsenazo Absorption Spectrophotometry Method for Chemical Analysis of Superalloys
HB 5220.36-1995 Determination of Zirconium Content by Arsenazo Ⅲ Direct Absorption Spectrophotometry Method for Chemical Analysis of Superalloys

Heilongjiang Provincial Standard of the People's Republic of China, Physical method Nitrogen content

DB23/T 2492-2019 Test method for content of carbon, nitrogen, hydrogen, sulfur and oxygen in graphene materials
DB23/T 2647-2020 Birch standing tree biomass and carbon content measurement method
DB23/T 2650-2020 Quantification method of biomass and carbon content of Xing'an larch standing trees

Professional Standard - Machinery, Physical method Nitrogen content

JB/T 8133.16-1999 Test methods for physical-chemical properties of electrical carbon product.Sulphur content
JB/T 8133.17-1999 Test method for physical-chemical properties of electrical carbon product.Ash content
JB/T 8133.16-2013 Test method for physical-chemical properties of electrical carbon product.Part 16:Sulphur content
JB/T 8133.17-2013 Test method for physical-chemical properties of electrical carbon product.Part 17:Ash content
JB/T 6570-2007 Conventional abrasive Testing method for magnetic material
JB/T 6570-1993 Determination method of magnetic substance content in common abrasive

International Dairy Federation (IDF), Physical method Nitrogen content

IDF 185-2002 Milk and milk products - Determination of nitrogen content - Routine method using combustion according to the Dumas principle

KR-KS, Physical method Nitrogen content

KS K ISO 1833-15-2022 Textiles — Quantitative chemical analysis —Part 15: Mixtures of jute with certain animal fibres (method by determining nitrogen content)
KS K ISO 1833-15-2018 Textiles — Quantitative chemical analysis — Part 15: Mixtures of jute and certain animal fibres (method by determining nitrogen content)

IN-BIS, Physical method Nitrogen content

Sichuan Provincial Standard of the People's Republic of China, Physical method Nitrogen content

DB51/T 2150.3-2016 Nylon/Spandex Covered Yarn Test Method Part 3: Ammonia Content (Physical Method)

Professional Standard - Textile, Physical method Nitrogen content

FZ/T 01101-2008 Textile test method.Fiber content.Quantitative physical analysis

CO-ICONTEC, Physical method Nitrogen content

ICONTEC 61-1991

HU-MSZT, Physical method Nitrogen content

Military Standard of the People's Republic of China-Commission of Science,Technology and Industry for National Defence, Physical method Nitrogen content

GJB 5381.11-2005 Methods of chemical analysis for pyrotech. Part 11: Determination of barium nitrate content. Azotometry method

CL-INN, Physical method Nitrogen content

INDITECNOR 23-43ch-1956

GOSTR, Physical method Nitrogen content

GOST R 58227-2018 Solid mineral fuel. Method for determination of mineral matter

工业和信息化部, Physical method Nitrogen content

YS/T 1179.3-2017 Methods for chemical analysis of aluminum slag Part 3: Determination of carbon and nitrogen content Elemental analyzer method
YS/T 273.1-2020 Methods of chemical analysis and physical properties of cryolite - Part 1: Gravimetric method for determination of wet water content
JB/T 6570-2020 Method for determination of magnetic content of ordinary abrasives
YS/T 273.3-2020 Methods of chemical analysis and physical properties of cryolite Part 3: Determination of fluorine content
YS/T 581.3-2021 Methods of chemical analysis and determination of physical properties of aluminum fluoride Part 3: Determination of fluorine content

SE-SIS, Physical method Nitrogen content

SIS SS 18 71 61-1983 Solid mineral fuels - Determination of arsenic content using the standard silver diethyldithiocarbamate photometric method of ISO 2590C
SIS 11 11 11-1974 Methods for assessing the slag inclusion content in steel. Microscopic methods

AR-IRAM, Physical method Nitrogen content

IRAM 5511-1949

KE-KEBS, Physical method Nitrogen content

KS 08-264-1981 KENYA STANDARD METHODS FOR ESTIMATION OF MOISTURE. TOTAL SIZE OR FINISH, ASH. FATTY MATTER AND DETERMINATION OF WATER-SOLUBLE MATTER IN TEXTILES

RO-ASRO, Physical method Nitrogen content

STAS SR ISO 3763:1976 Wrought steels. Macroscopic methods for assessing the content of non-metallic inclusions
STAS 9484/22-1982 SILICO-ALUMINOUS MINING PRODUCTS Methods of physical ands mechanical tests Determination of free sand content

ES-AENOR, Physical method Nitrogen content

UNE 55-709-1984

Professional Standard - Chemical Industry, Physical method Nitrogen content

HG/T 5362~5365-2018 Treatment and disposal methods of chromium-containing waste liquid, phosphorous-containing waste liquid and tin-containing waste liquid and determination method of copper content in copper-containing sludge (2018)

Professional Standard - Nuclear Industry, Physical method Nitrogen content

EJ/T 20167-2018 Determination of nitrogen content in reprocessed uranium trioxide powder by distillation-Nessler reagent spectrophotometry
EJ 192.4-1982 Environmental samples.Method for analyzing fluoride content in plants