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Total nitrogen analysis method

Total nitrogen analysis method, Total:499 items.

In the international standard classification, Total nitrogen analysis method involves: Fertilizers, Rubber, Water quality, Metalliferous minerals, Inorganic chemicals, Coals, Soil quality. Pedology, Ceramics, ENVIRONMENT. HEALTH PROTECTION. SAFETY, Sensory analysis, Ferrous metals, Analytical chemistry, Testing of metals, Products of non-ferrous metals, External water conveyance systems, Cutting tools, Sugar. Sugar products. Starch, Tea. Coffee. Cocoa, Non-ferrous metals, Air quality, Products of the chemical industry, Ferroalloys, Fuels, Education, Crude petroleum, Environmental testing, Refractories, Natural gas, Beverages, Non-metalliferous minerals, Space systems and operations, Raw materials for rubber and plastics, Medical sciences and health care facilities in general, Milk and milk products, Insulating fluids, Energy and heat transfer engineering in general, Particle size analysis. Sieving, Spices and condiments. Food additives, Welding, brazing and soldering, Organic chemicals, Lubricants, industrial oils and related products, Power stations in general, Farming and forestry, Products of the textile industry, Measurement of fluid flow, Powder metallurgy, Environmental protection, Medical equipment, Petroleum products in general, Test conditions and procedures in general, Standardization. General rules, General methods of tests and analysis for food products, Nuclear energy engineering, Edible oils and fats. Oilseeds, Burners. Boilers, Iron and steel products, Microbiology, Components for electrical equipment, Mining and quarrying, Geology. Meteorology. Hydrology.

AENOR, Total nitrogen analysis method

UNE 34080:1974 ANALYSIS METHODS FOR CHOCOLATES. DETERMINATION OF TOTAL NITROGEN. (PROTEINS).
UNE 77325:2003 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").
UNE 34082:1976 ANALYSIS METHODS FOR CHOCOLATES. TOTAL FAT.
UNE-EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
UNE-EN 12698-2:2007 Chemical analysis of nitride bonded silicon carbide refractories - Part 2: XRD methods
UNE-EN ISO 13395:1997 WATER QUALITY. DETERMINATION OF NITRITE NITROGEN AND NITRATE NITROGEN AND THE SUM OF BOTH BY FLOW ANALYSIS (CFA AND FIA) AND SPECTROMETRIC DETECTION. (ISO 13395:1996).
UNE-EN 12698-1:2007 Chemical analysis of nitride bonded silicon carbide refractories - Part 1: Chemical methods

National Metrological Verification Regulations of the People's Republic of China, Total nitrogen analysis method

JJG 1094-2013 Water Quality On-line Analyzers of Total Phosphorus and Total Nitrogen
JJG 801-2004 Chemiluminescent NO/NOx Analyzers
JJG 801-1993 Verification Regulation of Chemiluminescent NO/NO<下标x> Analyzer

British Standards Institution (BSI), Total nitrogen analysis method

BS 5551-4.1.3:1986 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation)
BS ISO 6658:2006 Sensory analysis - Methodology - General guidance
BS 4267-2:1988 Ammonium nitrate - Method for determination of total nitrogen content
BS 7755-3.7:1995 Soil quality. Chemical methods. Determination of total nitrogen. Modified Kjeldahl method
DD ISO/TS 12902:2002 Solid mineral fuels. Determination of total carbon, hydrogen and nitrogen. Instrumental methods
BS EN ISO 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
BS 6986-4:1990 Analysis of instant tea. Method for determination of total ash
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 5551 SubSec.4.1.5:1993 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of urea nitrogen content (gravimetric method using xanthydrol)
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 6200-3.22.3:1986 Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of nitrogen. Steel: spectrophotometric method (for trace amounts)
BS 1016-106.2:1997 Methods for analysis and testing of coal and coke - Ultimate analysis of coal and coke - Determination of nitrogen content
BS 5551-4.1.2:1982 Fertilizers. Chemical analysis. Determination of nitrogen. Determination of ammoniacal nitrogen, titrimetric method after distillation
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 5551 SubSec.4.1.3:1986 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation)
BS ISO 15672:2000 Rubber and rubber additives - Determination of total nitrogen content using an automatic analyser
BS 684-2.8:1977 Methods of analysis of fats and fatty oils - Other methods - Determination of total neutral oil
BS 7020-4.2:1990 Analysis of iron ores. Method for the determination of total iron content. Titanium (III) chloride reduction methods
BS 1715-2.2:1989 Analysis of soaps. Quantitative test methods. Method for determination of total free alkali content
BS EN ISO 11732:2005 Water quality. Determination of ammonium nitrogen. Method by flow analysis (CFA and FIA) and spectrometric detection
BS 6200 SubSec.3.22.1:1992 Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of nitrogen. Steel: volumetric method
BS 4325-2:1978 Methods for analysis of oilseed residues - Determination of total ash
BS 1741 Sec.5.2:1990 Methods for chemical analysis of liquid milk and cream. Determination of the nitrogen content of liquid milk. Routine method
BS 3762-3.13:1983 Analysis of formulated detergents. Quantitative test methods. Method for determination of total boron content
BS EN 12698-1:2007 Chemical analysis of nitride bonded silicon carbide refractories - Chemical methods
BS 1741-5.1:1988 Methods for chemical analysis of liquid milk and cream - Determination of the nitrogen content of liquid milk - Reference method
BS ISO 13322-1:2005 Particle size analysis - Image analysis methods - Static image analysis methods
BS ISO 13322-1:2014 Particle size analysis. Image analysis methods. Static image analysis methods
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 684-2.15:1986 Methods of analysis of fats and fatty oils - Other methods - Calculation of total saponifiable matter
BS 770-8:1987 Methods for chemical analysis of cheese - Determination of nitrogen content (reference method)
BS 5551-4.1.1:1981 Fertilizers - Chemical analysis - Determination of nitrogen - Nitron gravimetric method for determination of nitrate nitrogen
BS 6200-3.22.1:1992 Sampling and analysis of iron, steel and other ferrous metals - Methods of analysis - Determination of nitrogen - Steel: volumetric method
BS 5929-4:1986 Methods for sensory analysis of food. Flavour profile methods
BS 6200 SubSec.3.22.2:1985 Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of nitrogen. Steel: spectrophotometric method
BS 684-2.4:1976 Methods of analysis of fats and fatty oils - Other methods - Calculation of total fatty matter

国家市场监督管理总局、中国国家标准化管理委员会, Total nitrogen analysis method

GB/T 40723-2021 Rubber—Determination the contents of total sulfur and total nitrogen — Automatic analyser method

Japanese Industrial Standards Committee (JISC), Total nitrogen analysis method

JIS K 0170-3:2011 Testing methods for water quality by flow analysis -- Part 3: Total nitrogen
JIS K 0170-3:2019 Testing methods for water quality by flow analysis -- Part 3: Total nitrogen
JIS G 1201:2022 Iron and steel -- General rules for analytical methods
JIS R 1640:2002 Methods for the quantitative phase analysis of silicon nitride
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 K 0102-2:2022 Testing methods for industrial water and industrial wastewater -- Part 2: Inorganic anions, ammonium ion, organic nitrogen, total nitrogen and total phosphorus
JIS R 1603:1994 Methods for chemical analysis of fine silicon nitride powders for fine ceramics
JIS R 1675:2007 Methods for chemical analysis of fine aluminium nitride powders for fine ceramics
JIS R 1603:2007 Methods for chemical analysis of fine silicon nitride powders for fine ceramics
JIS K 0170-1:2011 Testing methods for water quality by flow analysis -- Part 1: Ammonium nitrogen
JIS K 0170-1:2019 Testing methods for water quality by flow analysis -- Part 1: Ammonium nitrogen
JIS K 0135:2003 General rules for preparative liquid chromatography
JIS K 0170-2:2011 Testing methods for water quality by flow analysis -- Part 2: Nitrite nitrogen and nitrate nitrogen
JIS K 0170-2:2019 Testing methods for water quality by flow analysis -- Part 2: Nitrite nitrogen and nitrate nitrogen

Military Standard of the People's Republic of China-General Armament Department, Total nitrogen analysis method

GJB 507-1988 Boron nitride chemical analysis method
GJB 770.303-1989 Test methods for gunpowder analysis: Determination of nitrogen content of nitrocellulose. Five-tube nitrogen meter method
GJB 8682.1-2015 Methods of chemical analysis of pyrotechnic powders Part 1: General principles
GJB 8682.11-2015 Methods of chemical analysis of pyrotechnics Part 11: Determination of barium nitrate content and nitrogen determination method
GJB 770.308-1990 Test methods for gunpowder analysis Determination of nitrogen content of nitrocellulose Ferrous iron-titanium chloride method

Professional Standard - Commodity Inspection, Total nitrogen analysis method

SN/T 3097-2012 Determination of total nitrogen in fertelezers.Combustion
SN/T 0736.11-2002 Chemical analysis of fertilizers for import and export.Determination of nitrogen content by auto analyzer
SN/T 3005-2011 Test method for instrumental determination of carbon,hydrogen,nitrogen and sulfur in organic chemicals
SN/T 1031.2-2001 Method for the chemical analysis of crude antimony trioxide for export.Determination of total antimony content

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Total nitrogen analysis method

GB/T 6730.24-1986 Methods for chemical analysis of iron ores--The arsenazo 3 photometric method for the determination of rare earth elements content
GB/T 10220-1988 Sensory analysis--Methodology--General guidance
GB/T 3257.15-1999 Methods for chemical analysis of bauxite--Determination the total content of rare earth oxide--Tribromo-arsenazo photometric method
GB/T 10220-2012 Sensory analysis.Methodology.General guidance
GB 223.49-1985 Methods for chemical analysis of iron,steel and alloy--The extraction separation-chlorophosphonazo mA photometric method for the determination of rare earth elements
GB/T 223.49-1994 Methods for chemical analysis of iron,steel and alloy. Extraction separation-chlorophosphonazo mA spectrophotometric method for the determination of the total rare tarth content
GB/T 2441.1-2008 Determination of urea.Part 1:Total nitrogen content
GB/T 6987.24-2001 Aluminium and aluminium alloys--Determination of the cerium subgroup of rare earth elements content--Tribromoarsenazo spectrophotometric method
GB/T 15076.13-1994 Methods for chemical analysis of tantalum and niobium-Determination of nitrogen content in tantalum
GB/T 5687.4-1985 Methods for chemical analysis of ferro-chromium--The neutralization titration method for the determination of nitrogen content
GB/T 2441.1-2001 Determination of urea-Determination of total nitrogen content
GB/T 609-1988 Chemical reagent--General method for the determination of total nitrogen
GB/T 609-2006 Chemical reagent General method for the determination of total nitrogen
GB/T 609-2018 Chemical reagent.General method for the determination of total nitrogen
GB/T 4324.26-1984 Methods for chemical analysis of tungsten--The Nessler reagent photometric method for the determination of nitrogen content
GB/T 4325.26-1984 Methods for chemical analysis of molybdenum--The nessler reagent photometric method for the determination of nitrogen content
GB/T 11606.1-1989 The method of environmental test for analytical instruments--General
GB/T 4324.6-1984 Methods for chemical analysis of tungsten--The ortho-phenanthroline photometric method for the determination of iron content
GB/T 4325.15-1984 Methods for chemical analysis of molybdenum--The chlorophosphonazo 1 photometric method for the determination of magnesium content
GB/T 4325.6-1984 Methods for chemical analysis of molybdenum--The ortho-phenanthroline photometric method for the determination of iron content
GB/T 4324.15-1984 Methods for chemical analysis of tungsten--The chlorophosphonazo I photometric method for the determination of magnesium content
GB/T 14265-1993 General rule of chemical analysis for hydrogen, oxygen, nitrogen, carbon and sulfur in metal's materials
GB/T 8220.2-1998 Methods for chemical analysis bismuth--Determination of iron content--1,10-Phenanthroline photometric method
GB/T 20931.9-2007 Methods for chemical analysis of lithium Determination of nitrogen content Mercuric potassium iodide spectrophotometric method
GB/T 13580.1-1992 General princeptes for analytial methods of the wet precipitation
GB 10267.5-1988 Analytical method for calcium metal Distillation-Nessler reagent photometric determination of nitrogen
GB/T 10267.5-1988 Method for analysis of calcium metal--The determination of nitrogen by distillation--Nessler reagent photometric method
GB/T 16555-2008 Chemical analysis of refractories containing carbon and silicon carbide or nitride
GB 223.36-1985 Methods for chemical analysis of iron,steel and alloy--The volumetric method for the determination of nitrogen content after distillation separation
GB/T 20931.4-2007 Methods for chemical analysis of lithium Determination of iron content Orthopenanthroline spectrophotometric method
GB 223.37-1985 Methods for chemical analysis of iron, steel and alloys Distillation separation-volumetric determination of nitrogen content
GB/T 1361-2008 General rules and regulations for analysis of iron ores
GB/T 1361-1978 Analytical methods of iron ores--Generality and common rules
GB/T 8158.4-1987 Methods for chemical analysis of sodium fluoride--The 1,10-phenanthroline spectro photometric method for the determination of iron content
GB/T 8654.1-1988 Methods for chemical analysis of manganese metal--The ortho-phenanthroline photometric method for the determination of iron content
GB/T 14849.1-1993 Silicon metal.Determination of iron content.1,10-Phenanthroline spectrophotometric method
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 3169.2-1982 Chemical analysis of aluminum powder--Determination of total aluminum by difference
GB/T 223.36-1994 Methods for chemical analysis of iron, steel and alloy. The neutral titration method for the determinaion of nitrogen content after distillation separation
GB/T 10574.5-1989 Tin-lead solders--Determination of iron content--1,10-phenanthroline spectrophotometric method
GB/T 14422-2008 Analysis of water used in boiler and cooling systems.Determination of benzotriazole
GB/T 4324.6-2012 Methods for chemical analysis of tungsten.Part 6:Determination of iron content.1,10-phenanthroline spectrophotometry
GB/T 3260.2-2013 Methods for chemical analysis of tin.Part 2:Determination of iron content.1,10-phenanthroline photometric method
GB/T 17592.3-1998 Textiles--Test method of the use of banned azo colourants--Thin-layer chromatography
GB/T 6987.4-2001 Aluminium and aluminium alloys--Determination of iron content--Orthopenanthroline photometric method
GB/T 7315.3-1987 Methods for chamical analysis of vanadium pentixide--The ortho-phenanthroline spectrophotometric method forthe determination of iron content
GB/T 13747.2-1992 Zirconium and zirconium alloys--Determination of iron content--1,10-phenanthroline spectrophotometric method
GB/T 13748.4-1992 Magnesium and its alloys--Determination of cerium content--Tribromoarsenazo spectrophotometric method
GB 223.37-1989 Methods for chemical analysis of iron,steel and alloy The indophenol blue photometric methods for the determination of nitrogen content after distillation seperation
GB/T 13748.5-1992 Magnesium and its alloys--Determination of iron content--Orthophenanthroline spectrophotometric method
GB/T 223.37-1989 Methods for chemical analysis of iron,steel and alloy--The indophenol blue photometric methods for the determination of nitrogen content after distillation separation
GB/T 6609.4-1986 Methods for chemical analysis of aluminium oxide--The orthophenanthroline photometric method for the determination of ferric oxide content
GB/T 4375.4-1984 Methods for chemical analysis of gallium--The 4,7-diphenyl-1,10-phenanthroline photometric method for the determination of iron content
GB/T 6730.25-1986 Methods for chemical analysis of iron ores--The gravimetric method for the determination of rare earth elements content
GB/T 5124.1-1985 Methods for chemical analysis of hardmetals--The gravimetric method for the determination of total carbon content
GB/T 16478.10-1996 Methods for chemical analysis of thorium nitrate.Determination of total rare earth content
GB/T 4698.7-2011 Methods for chemical analysis of titanium sponge, titanium and titanium alloys.Determination of oxygen and nitrogen content
GB/T 15076.4-2020 Methods for chemical analysis of tantalum and niobium—Part 4:Determination of iron content—1,10-Phenanthroline spectrophotometry
GB/T 4375.2-1984 Methods for chemical analysis of gallium--The 4-(2-pyridylazo)-resorcinol photometric method for the determination of lead content
GB/T 8156.7-1987 Methods for chemical analysis of aluminium fluoride for industrial use--The 1,10-phenanthroline photometric method for the determination of iron content
GB/T 6730.50-1986 Methods for chemical analysis of iron ores--The gas volumetric method for the determination of total carbon content
GB/T 5124.1-2008 Methods for chemical analysis of hardmetals.Determination of total carbon content.Gravimetric method
GB 6730.50-1986 Methods for chemical analysis of iron ores--The gas volumetric method for the determination of total content
GB/T 22923-2008 Determination of nitrogen,phosphorus and potassium for fertilizers by auto analyzer
GB/T 16480.5-1996 Method for chemical analysis of yttrium and yttium oxide--Determination of nitrogen content
GB/T 23278.2-2009 Methods for chemical analysis of sodium stannate.Part 2:Determination of iron content.1,10-phenanthroline photometric method
GB/T 15079.12-1994 Molybdenum concentrates-Determination of oil and moisture content
GB/T 223.33-1994 Methods for chemical analysis of iron,steel and alloy. The chlorophosphonazo mA photometric method for the determination of cerium content after extraction separation
GB 223.33-1984 Methods for chemical analysis of iron,steel and alloy--The chlorophosphonazo mA photometric method for the determination of cerium content after extraction separation
GB/T 13748.9-2005 Chemical analysis methods of magnesium and magnesium alloys.Determination of iron content.Orthopenanthroline spectrophotometric method
GB/T 14422-1993 Analysis of water used in boiler and cooling system. Determination of benzotriazole. Ultraviolet spectrophotometry
GB/T 6730.44-1986 Methods for chemical analysis of iron ores--The 1-(2-pyridylazo)-2-naphthol photometric method for the determination of zinc content
GB/T 6609.35-2023 Methods of chemical analysis and determination of physical properties of alumina Part 35: Determination of specific surface area Nitrogen adsorption method
GB/T 6609.35-2009 Chemical analysis methods and determination of physical performance of alumina-Part 35: Determination of specific surface area by nitrogen adsorption
GB/T 23274.2-2009 Methods for chemical analysis of stannic oxide.Part 2:Determination of iron content.1，10-phenanthroline photometric method
GB/T 14849.1-2007 Methods for chemical analysis of silicon metal-Part 1:Determination of iron content-1,10-Phenanthrolion spectrophotometric method
GB/T 13747.23-1992 Zirconium and zirconium alloys--Determination of nitrogen content--Distillation--Nessler reagent spectrophotometric method
GB/T 14505-1993 Method for chemical analysis of rocks and ores. General rules and regulations
GB/T 14505-2010 Method for chemical analysis of rocks and ores.General rules and regulations
GB/T 21172-2007 Sensory analysis.General guidance and test method for assessment of the colour of foods
GB/T 3253.2-2008 Methods for chemical analysis of antimony and antimony trioxide.Determination of iron content.Orthophenanthroline spectrophotometric method
GB/T 4698.2-1996 Sponge titanium, titanium and titanium alloys--Determination of iron content--1,10-Phenanthroline spectrophotometric method
GB/T 10574.7-1989 Tin-lead solders--Determination of copper content--2,9-dimethyl-1,10-phenanthroline spetrophotometric method
GB/T 12689.11-2004 The methods for chemical analysis of zinc and zinc alloys-The determination of lanthanum and cerium contents-The tri-bromide arsenazo spectrophotometric method
GB/T 14506.5-2010 Methods for chemical analysis of silicate rocks.Part 5:Determination of ferric oxide content
GB/T 3257.5-1999 Methods for chemical analysis of bauxite--Determination of iron oxide content--Orthophenanthroline photometric method
GB/T 4374.2-1984 Methods for chemical analysis of magnesium powders and aluminum-magnesium alloy powders--The 1,10-phenanthroline photometric method for the determination of iron content
GB/T 13748.9-2013 Chemical analysis methods of magnesium and magnesium alloys.Part 9:Determination of iron content.Orthopenanthroline spectrophotometric method
GB/T 5195.5-1985 Methods for chemical analysis of fluor-spar--The combustion-potassium iodate volumetric method for the determination of total sulphur content
GB/T 42487-2023 Soil quality Determination of soil nitrate nitrogen, nitrite nitrogen and ammonium nitrogen potassium chloride solution leaching flow analysis method
GB/T 42485-2023 Soil quality Determination of soil nitrate nitrogen, nitrite nitrogen and ammonium nitrogen
GB/T 13747.6-1992 Zirconium and zirconium alloys--Determination of copper content-2,9-dimethyl-1,10-phenanthroline spectrophotometric method
GB/T 12690.19-1990 Rare-earth metals and their oxides--Determination of iron content--1,10-phenanthroline spectrophotometric method
GB/T 4375.5-1984 Methods for chemical analysis of gallium--The N2O-C2H2flame atomic absorption spectrophotometric method for the determination of calcium content
GB/T 13748.8-1992 Magnesium and its alloys--Determination of copper content-2,9-dimethyl-1,10-phenanthroline spectrophotometric method
GB/T 4325.23-2013 Methods for chemical analysis of molybdenum.Part 23:Determination of oxygen and nitrogen contents.Inert gas fusion-infrared absorption and thermal conductivity method

Professional Standard - Machinery, Total nitrogen analysis method

JB/T 7994-1999 Cubic boron nitride chemical analysis method
JB/T 7994-2012 Superabrasive.Chemical analysis method for cubic boran nitricle
JB/T 4394-2016 Rare earth magnesium silicon alloys.Chemical analysis methods of total rare earth, silicon, total magnesium and magnesia
JB/T 4107.1-1999 Chemical analyse method for electrical contact materials.General and ordinary specification
JB/T 4394-1999 Chemical analysis methods for total rare-earth,silicon,magnesiun in rare-earth magnesium alloys

VN-TCVN, Total nitrogen analysis method

TCVN 6645-2000 Soil quality.Determination of total nitrogen content by dry combustion ("elemental analysis")
TCVN 305-2010 Steel and iron.Determination of nitrongen content.Methods of chemical analysis.
TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 311-2010 Steel and iron.Determination of total aluminium content.Methods of chemical analysis
TCVN 1821-2009 Steel and iron.Determination of total cacbon content.Methods of chemical analysis

Jilin Provincial Standard of the People's Republic of China, Total nitrogen analysis method

DB22/T 1932-2013 Determination method of total nitrogen content in peat (Kjeldahl method)
DB22/T 2270-2018 Determination of Ammonium Nitrogen and Nitrate Nitrogen in Farmland Soil by Flow Injection Analysis
DB22/T 2270-2015 Determination of Ammonium Nitrogen and Nitrate Nitrogen in Farmland Soil by Flow Injection Analysis

NL-NEN, Total nitrogen analysis method

NEN 6646-1990 Water - Photometric determination of the content of ammonium nitrogen and of the sum of the contents of ammoniacal and organically bound nitrogen according to Kjeldahl by continuous flow analysis

Association Francaise de Normalisation, Total nitrogen analysis method

NF X31-418*NF ISO 13878:1998 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").
NF EN ISO 17947:2023 Céramiques techniques - Méthodes pour l'analyse chimique de poudres fines de nitrure de silicium
NF EN ISO 21814:2022 Céramiques techniques - Méthodes d'analyse chimique des poudres de nitrure d'aluminium
NF T20-295:1968 CHEMICAL ANALYSIS OF SULPHURIC ACID AND OLEUM. DETERMINATION OF TOTAL NITROGEN.
NF A06-555:2010 Steel - Determination of nitrogen content - Spectrophotometric method.
NF ISO 13878:1998 Qualité du sol - Détermination de la teneur totale en azote par combustion sèche ("analyse élémentaire")
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 EN ISO 13395:1996 Qualité de l'eau - Détermination de l'azote nitreux et de l'azote nitrique et de la somme des deux par analyse en flux (CFA et FIA) et détection spectrométrique
NF T90-012*NF EN ISO 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection.
NF A06-654:1993 Chemical analysis of titanium alloys. Determination of nitrogen content. Titrimetric method.
NF ISO 8196-1:2009 Lait - Définition et évaluation de la précision globale des méthodes alternatives d'analyse du lait - Partie 1 : attributs analytiques des méthodes alternatives
NF V04-041-1*NF ISO 8196-1:2009 Milk - Definition and evaluation of the overall accuracy of alternative methods of milk analysis - Part 1 : analytical attributes of alternative methods

Korean Agency for Technology and Standards (KATS), Total nitrogen analysis method

KS L 9310-2017(2022) Methods for chemical analysis of aluminum nitride powders
KS I ISO 13878:2009 Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
KS Q ISO 6658-2009(2019) Sensory analysis－Methodology－General guidance
KS I 2203-2011 Methods for determination of oxides of nitrogen in flue gases
KS L 9310-2017 Methods for chemical analysis of aluminum nitride powders
KS Q ISO 6658:2009 Sensory analysis-Methodology-General guidance
KS E 3013-2001(2006) METHODS FOR DETERMINATION OF TOTAL IRON CONTENT IN IRON ORES
KS D 2573-2005 Methods for determination of nitrogen in zirconium and zirconium alloys
KS L 3318-1998 METHODS FOR CHEMICAL ANALYSIS OF FINE SILICON NITRIDE POWDERS FOR FINE CERAMICS
KS L 3318-1988 METHODS FOR CHEMICAL ANALYSIS OF FINE SILICON NITRIDE POWDERS FOR FINE CERAMICS
KS I ISO 13395-2008(2018) Water quality－Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
KS M 0027-1993 General Rules for Analytical Methods in Gas Chromatography Mass Spectrometry
KS L 1613-1994 Methods for chemeical analysis of fine silicon nitride powers for fine ceramics
KS M ISO 15672:2007 Rubber and rubber additives－Determination of total nitrogen content using an automatic analyser
KS M ISO 15672-2007(2017) Rubber and rubber additives－Determination of total nitrogen content using an automatic analyser
KS D ISO 1812-2002(2017) Copper alloys－Determination of iron content－1,10-Phenanthroline spectrophotometric method
KS D ISO 1812-2002(2022) Copper alloys－Determination of iron content－1,10-Phenanthroline spectrophotometric method
KS L 1613-2011(2016) Methods for chemical analysis of fine silicon nitride powers for fine ceramics
KS L 1613-2011(2021) Methods for chemical analysis of fine silicon nitride powers for fine ceramics
KS A ISO 13320-1-2004(2009) Particle size analysis Laser diffraction methods - Part 1 General principles
KS M ISO 15672-2007(2022) Rubber and rubber additives－Determination of total nitrogen content using an automatic analyser
KS I ISO 13395:2008 Water quality-Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
KS D ISO 793-2002(2017) Aluminium and aluminium alloys－Determination of iron－Orthophenanthroline photometric method
KS M 2418-2006 Standard test method for instrumental determination of carbon, hydrogen, and nitrogen in petroleum products and lubricants
KS M 0017-2010(2020) General rules for X-ray fluorescence spectrometric analysis
KS H ISO 1871-2013(2018) Agricultural food products ― General directions for the determination of nitrogen by the Kjeldahl method
KS L 1613-2011 Methods for chemical analysis of fine silicon nitride powers for fine ceramics
KS H ISO 8196-1:2021 Milk — Definition and evaluation of the overall accuracy of indirect methods of milk analysis —Part 1: Analytical attributes of indirect methods
KS H ISO 8196-1-2006(2016) Milk -- Definition and evaluation of the overall accuracy of indirect methods of milk analysis - Part 1: Analytical attributes of indirect methods
KS I ISO 13878-2009(2019) Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
KS E ISO 10213-2011(2016) Aluminium ores－Determination of total iron content－Titanium trichloride reduction method
KS Q ISO 6564-2003(2008) Sensory analysis－Methodology－Flavour profile methods

GOSTR, Total nitrogen analysis method

GOST R 58596-2019 Soils. Methods for determination of total nitrogen

Professional Standard - Aviation, Total nitrogen analysis method

HB 5218.14-1995 Aluminum Alloy Chemical Analysis Method Tribromoarsine Spectrophotometric Determination of Total Rare Earth in Cerium Group
HB/Z 5218.14-2004 Methods for chemical analysis of aluminium alloys-Part 14:Determination of the cerium subgroup of rare earth elements content by tribromoarsenazo spectrophtometric method
HB 5220.39-1995 Chemical Analysis Method of Superalloys PMBP Direct Extraction-ArsenazoⅢ Absorbance Spectrophotometry Determination of Total Rare Earth
HB 5220.39-2008 Methods for chemical analysis of superalloys. Part 39: Determination of total rare earth content by PMBP direct extraction-arsenazo Ⅲ photometric method
HB 5297.25-2001 Methods of chemical analysis of titanium alloys - Determination of nitrogen content by steam distillation
HB 5297.17-2001 Chemical Analysis Method of Titanium Alloy AzoarsenicⅢ Spectrophotometric Determination of Zirconium Content
HB 5219.19-1998 Determination of Cerium Content by Spectrophotometric Method of Tribromoarsine in Magnesium Alloy
HB 5297.20-2001 Chlorophosphine azo Ⅲ Spectrophotometric Method for Chemical Analysis of Titanium Alloy Determination of Cerium Content
HB 5422.23-1989 Determination of zirconium content by arsenazoⅢ absorptiophotometric method for chemical analysis of copper alloy
HB 5297.1-1984 General rules and general provisions of chemical analysis methods for titanium alloys
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 5421-1989 General principles and general provisions of chemical analysis methods for metallic materials
HB 5421-1998 General rules and general regulations for chemical composition analysis methods of metallic materials
HB 5220.42-2008 Methods for chemical analysis of superalloys. Part 42: Determination of cerium content by DBC-arsenazo photometric method
HB 5220.43-2008 Methods for chemical analysis of superalloys. Part 43: Determination of lanthanum content by DBC-arsenazo photometric method
HB 5220.38-1995 Extraction and Separation by Chemical Analysis Method of Superalloy - Determination of Cerium Content by ArsenazoⅢ Absorbance Spectrophotometry
HB 5220.36-1995 Determination of Zirconium Content by Arsenazo Ⅲ Direct Absorption Spectrophotometry Method for Chemical Analysis of Superalloys
HB 5219.18-1998 Determination of Total Rare Earth by Oxalate Gravimetric Method for Chemical Analysis of Magnesium Alloys
HB 5218.13-1995 Aluminum Alloy Chemical Analysis Method Oxalate Gravimetric Determination of Total Rare Earth
HB 5220.49-2008 Methods for chemical analysis of superalloys. Part 49: Determination of oxygen, nitrogen content by impulse heating-infrared, thermal conductivity method

Professional Standard - Environmental Protection, Total nitrogen analysis method

HJ/T 102-2003 The technical requirement for water quality automatic analyzer of total nitrogen
HJ/T 199-2005 Water quality Determination of tota-nitrogen Gas-phase molecular absorption spectrometry

NO-SN, Total nitrogen analysis method

NS 4745-1991 Water analysis - Determination of the sum of nitrite nitrogen and nitrate nitrogen
NS 4743-1993 Water analysis. Determination of total nitrogen after oxidation with peroxodisulphate

Professional Standard - Agriculture, Total nitrogen analysis method

GB 10220-1988 General Introduction to Sensory Analysis Methods
GB 609-1988 General method for the determination of total nitrogen content of chemical reagents
水产品质量安全检验手册 1.2.3.1-2005 Chapter 1 General Introduction Section 2 Analytical Methods for Aquatic Products Inspection 3. Chemical Analysis (1) Qualitative Analysis
水产品质量安全检验手册 1.2.3.2-2005 Chapter 1 General introduction Section 2 Analysis method of aquatic product inspection 3. Chemical analysis method (2) Quantitative analysis
水产品质量安全检验手册 1.2.4.6-2005 Chapter 1 General introduction Section 2 Analytical methods for aquatic product inspection 4. Physicochemical analysis method (6) Chromatographic method
水产品质量安全检验手册 1.2.4.3-2005 Chapter 1 General introduction Section 2 Analytical methods for aquatic product inspection 4. Physicochemical analysis method (3) Fluorescence analysis method
水产品质量安全检验手册 1.2.4.5-2005 Chapter 1 General introduction Section 2 Analytical methods for aquatic product inspection 4. Physicochemical analysis method (5) Potential analysis method
水产品质量安全检验手册 1.2.4.7-2005 Chapter 1 General introduction Section 2 Analytical methods for aquatic product inspection 4. Physical and chemical analysis methods (7) Gas chromatography

Professional Standard - Building Materials, Total nitrogen analysis method

JC/T 2342-2015 Method for the quantitative phase analysis of silicon nitride

American Society for Testing and Materials (ASTM), Total nitrogen analysis method

ASTM D3590-11 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3590-02 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3590-17 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D2973-71(2004) Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-10e1 Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-71(1998) Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-10 Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-22 Standard Test Method for Total Nitrogen in Peat Materials
ASTM D2973-16 Standard Test Method for Total Nitrogen in Peat Materials
ASTM D3179-89(2002) Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
ASTM D3179-89(1997) Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
ASTM D3179-89(1997)e1 Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
ASTM D3179-02 Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
ASTM D3179-02e1 Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
ASTM D8001-16e1 Standard Test Method for Determination of Total Nitrogen, Total Kjeldahl Nitrogen by Calculation, and Total Phosphorus in Water, Wastewater by Ion Chromatography
ASTM D8001-16 Standard Test Method for Determination of Total Nitrogen, Total Kjeldahl Nitrogen by Calculation, and Total Phosphorus in Water, Wastewater by Ion Chromatography
ASTM E778-15 Standard Test Methods for Nitrogen in Refuse-Derived Fuel Analysis Samples
ASTM D3590-02(2006) Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3590-89(1994)e1 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM E778-87(2004) Standard Test Methods for Nitrogen in the Analysis Sample of Refuse-Derived Fuel
ASTM E778-87(1996) Standard Test Methods for Nitrogen in the Analysis Sample of Refuse-Derived Fuel
ASTM E778-08 Standard Test Methods for Nitrogen in the Analysis Sample of Refuse-Derived Fuel
ASTM E778-15(2021) Standard Test Methods for Nitrogen in Refuse-Derived Fuel Analysis Samples
ASTM E258-67(2002) Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D3228-22 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D8083-16(2023) Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
ASTM D5373-21 Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
ASTM D7582-09 Standard Test Methods for Proximate Analysis of Coal and Coke by Macro Thermogravimetric Analysis
ASTM D5373-14e1 Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
ASTM D5373-13 Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
ASTM D5373-14 Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
ASTM E258-67(1996)e1 Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D6556-10 Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-04 Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption
ASTM D8083-16 Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
ASTM D7675-22 Standard Test Method for Determination of Total Hydrocarbons in Hydrogen by FID-Based Total Hydrocarbon (THC) Analyzer
ASTM E775-87(2004) Standard Test Methods for Total Sulfur in the Analysis Sample of Refuse-Derived Fuel
ASTM D3177-75 Standard Test Methods for Total Sulfur In The Analysis Sample Of Coal And Coke
ASTM D6556-00a Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-01a Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-01 Standard Test Method for Carbon Black8212;Total and External Surface Area by Nitrogen Adsorption
ASTM D6556-17 Standard Test Method for Carbon Black&x2014;Total and External Surface Area by Nitrogen Adsorption
ASTM D3177-89(1997) Standard Test Methods for Total Sulfur in the Analysis Sample of Coal and Coke
ASTM D3177-89(2002) Standard Test Methods for Total Sulfur in the Analysis Sample of Coal and Coke

Taiwan Provincial Standard of the People's Republic of China, Total nitrogen analysis method

CNS 188-1971 Method of Analysis for Calcium Cyanamide
CNS 3572-1973 Chemical Analysis of Natural Rubber (Nitrogen)
CNS 12786-1990 Method of Chemical Analysis for Silicon Nitride Powders
CNS 10509-1983 Methods of Chemical Analysis for Nitrogen in Ferrochromium
CNS 284-1981 General Rules for Chemical Analysis of Manganese Ores
CNS 8435-1982 General Rules for Chemical Analysis of Feldspar
CNS 11619-1986 General Rules for X-Ray Fluorescence Spectrometric Analysis
CNS 4055-1976 Method of Test for Trace Quantities of Total Sulfur in Ethylene
CNS 7393-1981 Method for analysis of radioisotopes - Total solids

German Institute for Standardization, Total nitrogen analysis method

DIN ISO 13878:1998 Soil quality - Determination of total nitrogen content by dry combustion ("elemental analysis") (ISO 13878:1998)
DIN EN 15750:2010-02 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 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 12698-2:2007-06 Chemical analysis of nitride bonded silicon carbide refractories - Part 2: XRD methods; German version EN 12698-2:2007
DIN EN 12698-1:2007-06 Chemical analysis of nitride bonded silicon carbide refractories - Part 1: Chemical methods; German version EN 12698-1:2007
DIN EN ISO 13395:1996-12 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection (ISO 13395:1996); German version EN ISO 13395:1996

Indonesia Standards, Total nitrogen analysis method

SNI 4146-2013
SNI 19-1501-1989 Test methods for total nitrogen oxide in air
SNI 06-2505-1991 Water, Test methods for total organic carbon content by infrared KOT analyzers

Professional Standard - Non-ferrous Metal, Total nitrogen analysis method

YS/T 575.14-2006 Chemical analysis method of bauxite ore-tribromoarsine spectrophotometric determination of total rare earth oxides
YS/T 575.14-2007 Methods for chemical analysis of bauxite.Part 14:Determination the total content of rare earth oxide.Tribromo-arsenazo photometric method
YS/T 74.7-1994 Cadmium Chemical Analysis Method 1,10-Phenanthroline Spectrophotometric Determination of Iron Content
YS/T 536.2-2006 Bismuth Chemical Analysis Method 1,10-Phenanthroline Spectrophotometric Determination of Iron Content
YS/T 535.4-2006 Sodium fluoride chemical analysis method o-phenanthrene spectrophotometric determination of iron content
YS/T 422.2-2000 Methods for chemical analysis of chromium carbide.Determination of total carbon content
YS/T 74.7-2010 Mehtods for chemical analysis of cadmium- Part 7:Determination of iron content- 1,10-Phenanthroline spectrophotometry
YS/T 520.4-2006 Gallium Chemical Analysis Method 4,7-Diphenyl-1,10-Phenanthroline Spectrophotometric Determination of Iron Content
YS/T 372.18-2006 Methods for elementary analysis of precious alloy. Determination of gadolinium content. Chlorophosphonazo Ⅲ spectrophotometry
YS/T 372.19-2006 Methods for elementary analysis of precious alloy. Determination of yttrium content.Chlorophosphonazo Ⅲ spectrophotometry
YS/T 520.2-2006 Gallium Chemical Analysis Method 4-(2-Pyridylazo)-Resorcinol Spectrophotometric Determination of Lead Content
YS/T 555.12-2006 Method for chemical analysis of molybdenum concentrate - Determination of total oil and water content
YS/T 555.11-2009 Methods for chemical analysis of molybdenum concentrate.Determination of oil and moisture content.Gravimetry
YS/T 535.4-2009 Chemical analysis methods of sodium fluoride.Part 4:Determination of iron content.1,10-phenanthroline spectrophotometric method
YS/T 424.2-2000 Methods for chemical analysis of titanium diboride powder.Determination of total boron content
YS/T 371-2006 Methods for chemical analysis of precious metals alloys. General rules and regulations
YS/T 371-1994 Methods for chemical analysis of precious metals alloys. General rules and regulations
YS/T 575.5-2006 Bauxite ore chemical analysis method o-phenanthrene spectrophotometric determination of ferric oxide content
YS/T 239.6-2010 Methods for chemical analysis of antimony trisulfide- Part 6:Determination of iron content-Neighbouring phenanthroline spectrophotometric method
YS/T 520.5-2006 Gallium Chemical Analysis Method for Determination of Calcium by Nitrous Oxide-Acetylene Flame Atomic Absorption Spectrophotometry
YS/T 423.1-2000 Methods for chemical analysis of nuclear-grade boron carbide powder.Determination of total boron content
YS/T 423.2-2000 Methods for chemical analysis of nuclear-grade boron carbide powder.Determination of total carbon content

International Organization for Standardization (ISO), Total nitrogen analysis method

ISO 6658:2005 Sensory analysis - Methodology - General guidance
ISO 6658:2017 Sensory analysis - Methodology - General guidance
ISO 6658:1985 Sensory analysis; Methodology; General guidance
ISO 15672:2000 Rubber and rubber additives - Determination of total nitrogen content using an automatic analyser
ISO 13602-1:2002 Technical energy systems - Method for analysis - Part 1: General
ISO 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
ISO/R 313:1963 Methods of chemical analysis of manganese ores — Determination of total iron content
ISO/R 319:1963 Methods of chemical analysis of manganese ores — Determination of total manganese content
ISO 6332:1982 Water analysis — Determination of iron — 1,10-phenanthroline photometric method
ISO/DIS 21068-4 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon — Part 4: XRD methods
ISO 8196-1:2009 | IDF 128-1:2009 Milk — Definition and evaluation of the overall accuracy of alternative methods of milk analysis — Part 1: Analytical attributes of alternative methods
ISO 29441:2010 Water quality - Determination of total nitrogen after UV digestion - Method using flow analysis (CFA and FIA) and spectrometric detection

ZA-SANS, Total nitrogen analysis method

SANS 5922:1978 Total moisture content of coal (nitrogen-oven method)
SANS 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection

AT-ON, Total nitrogen analysis method

ONORM L 1095-2002 Chemical analyses of soils - Determination of total nitrogen by dry combustion
ONORM L 1091-1999 Chemical analysis of soils - Determination of inorganic nitrogen Nmin-method
ONORM L 1082-1999 Chemical analyses of soils - Determination of nitrogen according to Kjeldahl

RU-GOST R, Total nitrogen analysis method

GOST 10671.4-2016 Reagents. Methods for determination of total nitrogen impurity
GOST 26107-1984 Soils. Methods for determination of total nitrogen
GOST R ISO 15859-3-2010 Space systems. Fluid characteristics, sampling and methods of analysis. Part 3. Nitrogen
GOST R 54428-2011 Technical energy systems. Methods for analysis. Part 1. Basic principles
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 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

TR-TSE, Total nitrogen analysis method

TS 2428-1976 METHODS FOR THE CHEMICAL ANALYSIS OF IRON AND STEELS DETERMINATION OF NITROGEN CONTENT
TS 602-1972 CHEMICAL ANALYSIS OF STEELS DETERMINATION OF TOTAL SILICON (GRAVIMETRIC METHOD)
TS 3651-1981 METHODS FOR THE ANALYSIS OF WATER — DETERMINATION OF IRON CONTENT — 1,10 Phenanthroline Spectrophotometry Method
TS 601-1972 CHEMICAL ANALYSIS OF STEELS DETERMINATION OP TOTAL CABBON (GRAVIMETKIC METHOD APTER COMBUSTION ?N A STREAM OP OXYGEN)
TS 2978-1978 Method For The Chemical Analysis Of Glass Sand, Determination Of Total R?03 Content
TS 426-1966 METHODS OF CHEMICAL ANALYSIS OF MANGANESE ORES DETERMINATION OF TOTAL MANGANESE CONTENT
TS 587-1968 METHODlS OF CHEMICAL, ANALYSIS OF MANGANBSE ORES DETE?BMINATION OF TOTAL ?RON CONTENT

RO-ASRO, Total nitrogen analysis method

STAS SR 13300-5-1994 `Starches. Methods of analysis. Total ash determination
STAS SR 13348-1-1996 Tea. Analysis methods. Determination of proteic nitrogen by the Kjeldahl method. Spectrophotometric method
SR 2567-1-1997 Soft drinks - Methods of analysis - Determination of total acidity (Uzual method )
SR ISO 4297:1994 Manganese ores and concentrates - Methods of chemical analysis-General instructions

BE-NBN, Total nitrogen analysis method

NBN T 91-255-1976 Water analysis methods - Determination of the ammoniacal and organic nitrogen - (Kjeldahl nitrogen)
NBN T 91-253-1976 Water analysis methods - Determination of the albuminoid nitrogen
NBN T 91-252-1976 Water analysis methods - Determination of the ammoniacal nitro-gen after preliminary distillation
NBN T 91-257-1977 Water analysis methods - Determination of the nitrite nitrogen - Photoraetric method

未注明发布机构, Total nitrogen analysis method

BS 4267-2:1988(1999) Ammonium nitrate — Part 2 : Method for determination of total nitrogen content
BS 1016-1:1973(1999) Methods for The analysis and testing of coal and coke — Part 1 : Total moisture of coal
BS EN ISO 13395:1996(1998) Water quality — Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection

工业和信息化部, Total nitrogen analysis method

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 1467.10-2021 Hafnium Chemical Analysis Methods Part 10: Determination of Oxygen and Nitrogen Amounts
YS/T 540.4-2018 Methods for chemical analysis of vanadium Part 4: Determination of iron content 1,10-phenanthroline spectrophotometric method
YS/T 1161.3-2016 Methods for analysis of pseudoboehmite Part 3: Determination of pore volume and specific surface area Nitrogen adsorption method

Hebei Provincial Standard of the People's Republic of China, Total nitrogen analysis method

DB13/T 1224-2010 Determination method of total nitrogen in organic chemical products

CZ-CSN, Total nitrogen analysis method

CSN ON 65 4510-1962
CSN 65 4836-1983 Minerál fertilizers Methode for determination of total nitrogen content
CSN 83 0540 Cast.13-1984 Chemical and physical analysis of waste water Determination of organic and total nitrogen
CSN 42 0648 Cast.5-1986 Chemical analysis of metallic chromium. Determination of nitrogen by the titration and by the method with automatic analyzers
CSN 58 0703-7-1999 Testing methods of dehydrated products and seasonings - Part 7: Determinaton of total nitrogen
CSN 72 0120 Z1-1997
CSN 72 0112 Cast.3 Z1-1997
CSN 42 1112-1986 Metallic and nitrided manganese. Methods of taking and preparing samples for chemical and physical-chemical analysis
CSN 46 3205-1987 Fresh fruits. Table grapes. Metod of analytical determination of total sugar content

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, Total nitrogen analysis method

GB/T 19143-2017 Analytical method of element for carbon,hydrogen ,oxygen and nitrogen in rock organics
GB/T 14265-2017 General rule of chemical analysis for hydrogen,oxygen,nitrogen,carbon and sulfur in metallic materials
GB/T 16555-2017 Chemical analysis of refractories containing carbon and silicon carbide or nitride
GB/T 15076.13-2017 Methods for chemical analysis of tantalum and niobium—Part 13: Determination of nitrogen content—Inert gas fusion thermal conductivity method
GB/T 34500.5-2017 Chemical analysis methods for rare earth residue and waste water—Part 5：Determination of ammonia nitrogen content
GB/T 35905-2018 Test methods for biomass—Determination of total solids in biomass

Xinjiang Provincial Standard of the People's Republic of China, Total nitrogen analysis method

DB65/T 602.3-2001 The determinanation of ammonium nitrogen in soil
DB65/T 602.4-2001 The determinanation of nitrate nitrogen in soil
DB65/T 602.2-2001 The determinanation of hydrolyzable nitrogen in soil
DB65/T 602.11-2001 Analysis method of water soluble salts of soil

Professional Standard - Education, Total nitrogen analysis method

JY/T 0589.1-2020 General principles of thermal analysis methods Part 1: General principles

Danish Standards Foundation, Total nitrogen analysis method

DS/ISO 29441:2010 Water quality - Determination of total nitrogen after UV digestion - Method using flow analysis (CFA and FIA) and spectrometric detection
DS/EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
DS/EN ISO 13395:1997 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
DS/EN 12698-2:2007 Chemical analysis of nitride bonded silicon carbide refractories - Part 2: XRD methods
DS 292:1985 Water analysis. Total phosphor. Photometric method
DS/EN 12698-1:2007 Chemical analysis of nitride bonded silicon carbide refractories - Part 1: Chemical methods

Group Standards of the People's Republic of China, Total nitrogen analysis method

T/GRM 049-2022 Determination of Mercury in Crude Oil
T/GRM 046-2022 Determination of Mercury in Gas Field Water
T/ZSA 96.5-2021 Test methods for dialyzer — Part 5: Performance parameters of total solute removal
T/CHES 15-2017 Determination of Total Nitrogen in Water Quality Gas Phase Molecular Absorption Spectrometry

Professional Standard - Electron, Total nitrogen analysis method

SJ/T 10893-1996 General rules for chemical analysis of electronic glass

Lithuanian Standards Office , Total nitrogen analysis method

LST EN 15750-2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
LST EN ISO 13395:2000 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection (ISO 13395:1996)
LST EN 12698-2-2007 Chemical analysis of nitride bonded silicon carbide refractories - Part 2: XRD methods
LST EN 12698-1-2007 Chemical analysis of nitride bonded silicon carbide refractories - Part 1: Chemical methods

Professional Standard - Ferrous Metallurgy, Total nitrogen analysis method

YB/T 174.1-2000 Chemical analysis for silicon nitride bonded silicon carbide product.Determination of silicon nitride content.High pressure dissolve specimen method
YB/T 174.4-2000 Chemical analysis for silicon nitride bonded silicon carbide product.Determination of iron oxide content.o-Phenanthroline photometric method
YB/T 5330-2006 Vanadium pentoxide chemical analysis method o-phenanthroline spectrophotometric method for determination of iron content
YB/T 4013-1991 Method for chemical analysis of high-quality magnesia
YB/T 174.2-2000 Chemical analysis for silicon nitride bonded silicon carbide product.Determination of silicon carbide content.High pressure dissolve specimen method
YB/T 174.3-2000 Chemical analysis for silicon nitride bonded silicon carbide product.Determination of free silicon content.Molybdenum blue photometric method

YU-JUS, Total nitrogen analysis method

JUS B.H8.320-1988 Methods of analysis of coal and coke. Determination of nitrogen ccmtent - Makro Kjeldahl nethod
JUS C.A1.409-1982 Methods for chemical analysi$ of ferroalloys. Titrimetric determination ofnitrogen in ferro-chromium
JUS C.A1.052-1986 Methods for chemical analysis of iron and steel. Determination of total silicon. Gravimetric method
JUS C.A1.381-1987 Methods ofchemical ana/ysis ofznic povvder. Complexometric determination of total zine content.
JUS B.H8.338-1986 Methnds of analysis of coal and coke. Coke - Determination of total moisture
JUS B.H8.316-1984 Methods of analysis of coal nad coke. Determination of total sulphur. High temperature combustion method

Standard Association of Australia （SAA）, Total nitrogen analysis method

AS 1050.12:1983/Amdt 1:1984
AS 3580.5.1:2023 Methods for sampling and analysis of ambient air, Method 5.1: Determination of oxides of nitrogen — Direct-reading instrumental method
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 1050.12:1983 Methods for the analysis of iron and steel - Determination of nitrogen in steel (steam distillation titrimetric method)
AS 3580.5.1:2011
AS 3580.5.1:1993 Methods for sampling and analysis of ambient air - Determination of oxides of nitrogen - Chemiluminescence method
AS 1038.6.4:2005 Coal and coke - Analysis and testing - Higher rank coal and coke - Ultimate analysis - Carbon, hydrogen and nitrogen - Instrumental method

European Committee for Standardization (CEN), Total nitrogen analysis method

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 ISO 13395:1996 Water Quality - Determination of Nitrite Nitrogen and Nitrate Nitrogen and the Sum of Both by Flow Analysis (CFA and FIA) and Spectrometric Detection
EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods

中华人民共和国环境保护部, Total nitrogen analysis method

GB 13580.1-1992 General principles for analytical methods of the wet precipitation

IT-UNI, Total nitrogen analysis method

UNI 3712-1956
UNI 3665-1955 Procedures for chemical analysis of minerals. Determination of total alkali in iron ore. Gravimetric method, for standard analyses.
UNI 2963-1949 Procedures for chemical analysis of metallic materials. Determination of total silicon content of ferrosilicon.
UNI 3711-1956

PH-BPS, Total nitrogen analysis method

PTS 98-1970 Standardization of the Method of Test for the Determination of Total Nitrogen Content.Devarda Method

Military Standard of the People's Republic of China-Commission of Science,Technology and Industry for National Defence, Total nitrogen analysis method

GJB 5381.1-2005 Methods of chemical analysis for pyrotech Part 1:General rules
GJB 5381.11-2005 Methods of chemical analysis for pyrotech. Part 11: Determination of barium nitrate content. Azotometry method

SE-SIS, Total nitrogen analysis method

SIS SS 02 81 33-1991 Determination of the sum of the nitrite and nitrate nitrogen content of water

Professional Standard - Hygiene , Total nitrogen analysis method

WS/T 409-2013 Estimation of total analytical error for clinical laboratory methods

Professional Standard-Ships, Total nitrogen analysis method

CB/T 3905.1-1999 General Rules for Chemical Analysis Methods of Tin-based Bearing Alloys
CB/T 3905.1-2005 Method for chemical analysis of tin-base bearing alloy - Part 1: General provisions

KR-KS, Total nitrogen analysis method

KS M ISO 684-2003(2023) Analysis of soaps－Determination of total free alkari
KS H ISO 8196-1-2021 Milk — Definition and evaluation of the overall accuracy of indirect methods of milk analysis —Part 1: Analytical attributes of indirect methods

PT-IPQ, Total nitrogen analysis method

NP 1612-2002 Meat and meat products Determination of nitrogen content Reference method

Professional Standard - Rare Earth, Total nitrogen analysis method

XB/T 601.7-1993 Lanthanum hexaboride chemical analysis method 1,10-phenanthrene-phenanthrene spectrophotometric determination of iron content

Professional Standard - Nuclear Industry, Total nitrogen analysis method

EJ 194.2-1982 Environmental samples.Method for analyzing total trace of mercury in water
EJ 194.1-1982 Environmental samples.Method for analyzing fluoride content in soil
EJ 194.4-1982 Environmental samples.Method for analyzing total trace of mercury in soil
EJ 267.1-1984 General principles and general provisions of analytical methods for uranium in uranium ores
EJ 194.3-1982 Environmental samples.Method for analyzing total trace of mercury in biological samples
EJ/T 349.1-1988 General rules and general regulations for analysis methods of trace uranium and thorium in rocks

Association of German Mechanical Engineers, Total nitrogen analysis method

VDI 2456-2004 Stationary source emissions - Reference method for determination of the sum of nitrogen monoxide and nitrogen dioxide - Ion chromatography method

Professional Standard - Electricity, Total nitrogen analysis method

DL/T 502.1-2006 Analytical methods of steam and water in power plants.Part 1: General rule
DL/T 1358-2014 Analytical methods of steam and water in power plants determination of total organic carbon

IN-BIS, Total nitrogen analysis method

Professional Standard - Geology, Total nitrogen analysis method

DZ/T 0064.23-2021 Analytical methods for groundwater quality - Part 23: Determination of iron content by phenanthroline spectrophotometric method
DZ/T 0064.57-2021 Analytical Methods of Groundwater Quality Part 57: Determination of Ammonia Nitrogen by Nessler's Reagent Spectrophotometry
DZ/T 0064.76-2021 Methods of Analytical Groundwater Quality Part 76: Determination of Gross Alpha and Gross Beta Radioactivity Radiochemical Method
DZ/T 0279.29-2016 Methods of Analysis of Regional Geochemical Samples Part 29: Nitrogen Determination Kjeldahl Distillation - Volumetric Method
DZ/T 0184.1-1997 General rules and general provisions of isotope geological sample analysis methods

Natural Gas Processor's Association (NGPA), Total nitrogen analysis method

GPA STD 2103-2003 Tentative Method for the Analysis of Natural Gas Condensate Mixtures Containing Nitrogen and Carbon Dioxide by Gas Chromatography

Hunan Provincial Standard of the People's Republic of China, Total nitrogen analysis method

DB43/T 2139-2021 Determination of Nitrogen and Phosphorus in Plants by Continuous Flow Analysis

Professional Standard - Aerospace, Total nitrogen analysis method

QJ 2670.1-1994 General Rules for Error Analysis and Accuracy Evaluation of Telemetry Parameters

Professional Standard - Railway, Total nitrogen analysis method

TB/T 2059.4-2006 Methods for analysis of diesel locomotive collants Part 4: Determination of benzotriazole
TB/T 2059.5-1989 Analytical method for cooling water additives of railway diesel locomotive Determination of benzotriazole

Anhui Provincial Standard of the People's Republic of China, Total nitrogen analysis method

DB34/T 2127.1-2014 Methods of Analysis of Samples for Regional Geochemical Surveys Part 1: General

冶金工业部, Total nitrogen analysis method

YB 4013-1991 Chemical analysis method of high-quality magnesia, determination of iron oxide content by photometric method of phenanthroline

Professional Standard - Urban Construction, Total nitrogen analysis method

CJ 26.27-1991 Municipal sewage water quality inspection method standard Determination of total nitrogen Titration method after distillation

国家质量监督检验检疫总局, Total nitrogen analysis method

SN/T 4764-2017 Elemental analyzer method for determination of carbon, hydrogen, nitrogen and sulfur content in coal

Canadian Standards Association (CSA), Total nitrogen analysis method

CSA Q636-93-1993 Guidelines and Requirements for Reliability Analysis Methods General Instruction No 1 R(2000)