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Determination method of total nitrogen content in medium

Determination method of total nitrogen content in medium, Total:499 items.

In the international standard classification, Determination method of total nitrogen content in medium involves: Soil quality. Pedology, Coals, Analytical chemistry, Non-ferrous metals, Fuels, Fertilizers, External water conveyance systems, Water quality, Protection against fire, Milk and milk products, Ferrous metals, Inorganic chemicals, Farming and forestry, Organic chemicals, Air quality, Edible oils and fats. Oilseeds, Power stations in general, Products of the chemical industry, Cutting tools, Petroleum products in general, Rubber, Tobacco, tobacco products and related equipment, Rubber and plastics products, Ferroalloys, Plastics, Leather technology, General methods of tests and analysis for food products, Tea. Coffee. Cocoa, Lubricants, industrial oils and related products, Photography, Animal feeding stuffs, Wastes, Textile auxiliary materials, Sugar. Sugar products. Starch, Aircraft and space vehicles in general, Metalliferous minerals, Insulating fluids, Crude petroleum, Testing of metals, Meat, meat products and other animal produce, Construction materials, Pulps, Materials for the reinforcement of composites, Powder metallurgy, Road engineering, Textile fibres, Furniture, Iron and steel products, Glass, TESTING, Pharmaceutics, Vocabularies, Nuclear energy engineering, Explosion protection, Processes in the food industry, Beekeeping, Welding, brazing and soldering, Semiconducting materials, Fruits. Vegetables, Road vehicles in general, Paints and varnishes.

RU-GOST R, Determination method of total nitrogen content in medium

GOST 26107-1984 Soils. Methods for determination of total nitrogen
GOST EN 15478-2013 Fertilizers. Determination of total nitrogen in urea
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 30181.3-1994 Mineral fertilizers. Method for determination of mass fraction of nitrogen in fertilizers with nitrate nitrogen
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 EN 15561-2013 Fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates
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 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 EN 15560-2013 Fertilizers. Determination of total nitrogen in calcium cyanamide nitrate free
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 20851.1-1975 Mineral fertilizers. Methods for determination of nitrogen content
GOST 30181.8-1994 Mineral fertilizers. Method for determination of mass fraction of ammonium nitrogen in compound fertilizers (chloramine method)
GOST 29302-1992 Ammonium nitrate for industrial use. Method for determination of total nitrogen content (titrimetric) after distillation
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 13020.6-1985 Metallic chrome. Method for determination of total aluminium
GOST 26261-1984 Soils. Methods for determining total phosphorus and total potassium
GOST 10671.4-1974 Reagents. Methods for determination of nitrogen compaunds impurity general content
GOST 9794-2015 Meat products. Methods for the determination of total phosphorus content
GOST 4339-1974 Coke. Rapid method for the determination of total sulphur content
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 32459-2013 White phosphorus. Determination in water by gas chromatography with nitrogen-phosphorus detector
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 18164-1972 Drinking water. Method for determination of total solids content
GOST 30181.1-1994 Mineral fertilizers. Method for determination of total overall mass fraction of nitrogen in compound fertilizers (in ammonium and amide forms, with deammoniation)
GOST 30181.2-1994 Mineral fertilizers. Method for determination of total mass fraction of nitrogen in single - component fertlizers (in ammonium and amide forms, no deammoniation)
GOST 33977-2016 Fruit and vegetable products. Methods for determination of total solids content

Jilin Provincial Standard of the People's Republic of China, Determination method of total nitrogen content in medium

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

Korean Agency for Technology and Standards (KATS), Determination method of total nitrogen content in medium

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 2112-2011 Crude petroleum and petroleum products-Determination of nitrogen content
KS M ISO 5315-2007(2012) Fertilizers－Determination of total nitrogen content－Titrimetric method after distillation
KS M ISO 5315:2007 Fertilizers-Determination of total nitrogen content-Titrimetric method after distillation
KS M ISO 5315:2013 Fertilizers－Determination of total nitrogen content－Titrimetric method after distillation
KS H ISO 1871-2013(2018) Agricultural food products ― General directions for the determination of nitrogen by the Kjeldahl method
KS I ISO 13878:2009 Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
KS D ISO 4945-2002(2017) Steel－Determination of nitrogen content－Spectrophotometric method
KS M ISO 6851:2002 Photography-Processing waste-Determination of total amino nitrogen-Microdiffusion Kjeldahl method
KS E 3733-1989 Determination or Carbon Monoxide and Temperature in Combustion Gases of Holed Briquette
KS M ISO 5397-2002(2017) Leather－Determination of nitrogen content and “hide substance”－Titrimetric method
KS D ISO 10700-2008(2018) Steel and iron－Determination of manganese content－Flame atomic absorption spectrometric method
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 M 6584-2008 Standard test method for rubber－Determination of metal content by Flame Atomic Absorption(AAS) analysis
KS K 0160-2014 Test method for total alkali content in wet processed textiles
KS D 2528-2009 Methods for determination of magnesium in titanium
KS D 2529-2011 Methods for determination of carbon in titanium and titanium alloys
KS D 2531-2009 Method for determination of chlorine in titanium
KS D 2533-2009 Determination of oxygen in titanium and its alloy
KS D 2535-2004 Methods for determination of palladium in titanium alloys
KS D 2536-2009 Methods for determination of aluminium in titanium alloys
KS D 2553-2010 Tantalum-Method for atomic absorption spectrometric analysis
KS D 1969-2007 Method for determination of oxygen in copper
KS D 2527-2003 Method for determination of iron in titanium
KS D 2552-2005 Method for determination of silicon in tantalum
KS D 2560-2005 Determination of hydrogen in tantalum
KS D 2532-2007 Methods for determination of hydrogen in titanium and titanium alloys
KS D 2526-2012 Methods for determination of manganese in titanium and titanium alloys
KS D 2525-2011 Methods for determination of silicon in titanium and titanium alloys
KS D 2534-2009 Methods for determination of sodium in titanium
KS M 2457-2003 Test method for chlorine content of light and middle distillates by oxidative microcoulometry
KS D 0064-2001 Method of measurement for hydrogen evolved from steel welds
KS D 1688-2004 Methods for determination of cadmium in copper
KS D 1991-2007 Method for determination of selenium in copper
KS D 1828-2009 Method for determination of selenium in steel
KS D 1827-2009 Methods for determination of zirconium in steel
KS D 1829-2008 Methods for determination of tellurium in steel
KS M 7093-2001 Testing method iron in pulp

Indonesia Standards, Determination method of total nitrogen content in medium

SNI 13-4721-1998 Methods for determination of total nitrogen content in soils
SNI 06-6323-2000 Determination of total nitrogen content in peat
SNI 4146-2013
SNI 13-3482-1994 Coal, Determination of nitrogen using Kyeldahl method
SNI 19-1501-1989 Test methods for total nitrogen oxide in air
SNI 19-1432-1989 Exhaust-gases, Test methods for nitrogen dioxide content
SNI 06-7129-2005 Test methods of chromium (IV) content in leather by spectrophotometers
SNI 19-1502-1989 Test method for nitrogen oxides content of air in working area
SNI 03-6894-2002 Test method for asphalt content from asphalt mixtures by centrifuge
SNI 12-7181-2006 Test methods of total chromium content in leather by atomic absorption spectrophotometers (AAS)
SNI 06-6858-2002 Test methods of total coli bacteria in water by membrane filters
SNI 03-6791-2002 Test method of cement content in soil-cement mixture by chemistry analysis
SNI 19-1658-1989 Ambient air, Test method for total hydrocarbon, methane and monoxyde

Association Francaise de Normalisation, Determination method of total nitrogen content in medium

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 V04-211:1971 MILK. DETERMINATION OF TOTAL NITROGEN CONTENT. (KJELDAHL METHOD).
NF U42-416*NF EN 15478:2009 Fertilizers - Determination of total nitrogen in urea.
NF X31-111*NF ISO 11261:1995 Soil quality. Determination of total nitrogen. Modified kjeldahl method.
NF X34-117:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental 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 U42-151:1984 Fertilizers. Determination of total nitrogen content. Titrimetric method after distillation.
NF A06-555:2010 Steel - Determination of nitrogen content - Spectrophotometric method.
NF X31-418*NF ISO 13878:1998 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").
NF U42-146*NF EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free.
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 EN 13716:2002 Agents de surface - Détermination de la teneur en azote total basique - Titrage potentiométrique
NF M07-058:1992 Produits pétroliers - Dosage de l'azote total dans les distillats pétroliers - Méthode par combustion et détection par chimioluminescence.
NF M60-471*NF EN ISO 12799:2019 Nuclear energy - Determination of nitrogen content in UO2, (U,Gd)O2 and (U,Pu)O2 sintered pellets - Inert gas extraction and conductivity detection method
NF EN 16168:2012 Boues, biodéchets traités et sols - Détermination de la teneur totale en azote par combustion sèche

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Determination method of total nitrogen content in medium

GB/T 2441.1-2001 Determination of urea-Determination of total nitrogen content
GB/T 2441.1-2008 Determination of urea.Part 1:Total nitrogen content
GB/T 9823-1988 Method for determination of total nitrogen content in oilseed residues
GB/T 8572-2001 Determination of total nitrogen content for compound fertilizers-Titrimetric method after distillation
GB/T 10511-1989 The determination of total nitrogen content for nitrophosphate titrimetric method after distillation
GB/T 10511-2008 Determination of tatal nitrogen content for nitrophosphate.Titrimetric method after distillation
GB/T 8572-2010 Determination of total nitrogen content for compound fertilizers titrimetric method after distillation
GB/T 6625-1986 Test methods for nitrogen content of nitrogen-doped getter
GB/T 23952-2009 Inorganic chemicals for industrial use.General method for the determination of total nitrogen content.Distillation-acid-base titrations method
GB 9170-1988 Determination method of total nitrogen content in lubricating oil and fuel oil (improved Kjeldahl method)
GB/T 9170-1988 Lubricating oils and fuel oils--Determination of total nitrogen--Modified kjeldahl method
GB/T 17767.1-1999 Determination of total nitrogen content for organic-inorganic compound fertilizers
GB/T 13598-1992 A method for the determination of agricultural chemical residues containing nitrogenous in tobacco leaves
GB/T 9823-2008 Inspection of grain and oils.Determination of total nitrogen content in plant oilseeds residues
GB/T 3597-2002 Fertilizer--Determination of nitrate nitrogen content--Nitron gravimetric 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 10209.1-2001 Determination of total nitrogen content for monoammonium phosphate and diammonium phosphate(Titrimetric method after distillation)
GB/T 12009.1-1989 Isocyanates--Determination of total chlorine content
GB 12009.1-1989 Determination method of total chlorine content in isocyanate
GB/T 21729-2008 Determination of selenium content in tea
GB/T 24583.3-2009 Vanadium-Nitrogen alloy.Determination of nitrogen content.The distillation-neutralization titration 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 41965-2022 Photography—Processing waste—Determination of total amino nitrogen(microdiffusion Kjeldahl method)
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 5687.4-2016 Nitrogen-bearing ferrochromium and nitride ferrochrome with high nitrogen content.Determination of nitrogen content.The distillation-neutralization titration method
GB/T 3600-2000 Fertilizers-Determination of ammoniacal nitrogen content-Formaldehyde method
GB/T 21318-2009 Determination of total nirogen content in animal feeding stuffs by combustion according to the Dumas principle and calculation o the crude protein content
GB/T 5543-1985 Resin finishing agent--Determination of total formaldehyde content
GB 5543-1985 Resin finishing agent－Determination of total formaldehyde content
GB/T 24318-2009 Determination of total nitrogen content in animal feeding stuffs by combustion according to the Dumas principle and calculation of the crude protein content
GB/T 12091-1989 Method for determination of nitrogen content in starches and derived products
GB/T 3598-1983 Fertilizers--Determination of urea nitrogen content--Urease method
GB/T 31776-2015 Determination method of methanol content in methanol gasoline for motor vehicles
GB/T 42491-2023 Determination of total starch content in feed by enzymatic method
GB/T 15672-1995 Method for determination of total sugar in edible fungi
GB/T 14605-1993 Determination of trace argon, nitrogen and krypton inoxygen. Gas chromatographic method
GB/T 20574-2006 Method for determination of total flavonoids in propolis. Colorimetric method
GB/T 3595-2000 Fertilizers-Determination of ammoniacal nitrogen content-Titrimetric method after distillation
GB/T 42263-2022 Determination of nitrogen content in silicon single crystal—Secondary ion mass spectrometry method
GB/T 17674-2012 Determination of nitrogen in crude oil by boat-inlet chemiluminescence
GB/T 5551-1992 Surface active agents Method for determination of calcium and magnesium total contents in despersing agents
GB/T 12007.3-1989 Epoxide resins--Determination of total chlorine content
GB 12007.3-1989 Method for Determination of Total Chlorine Content of Epoxy Resin
GB/T 17674-1999 Determination of nitrogen in petroleum and petroleum products by chemiluminescence method
GB/T 21728-2008 Determination of fluoride content in brick tea
GB/T 32437-2015 Testing methods for harmful substances of furniture.General guidelines
GB/T 12442-1990 Test method for the hydroxyl groups content of silica glass
GB/T 8313-2008 Determination of total polyphenols and catechins content in tea
GB/T 42985-2023 Method for detecting biobased content in biomass-based foam materials
GB/T 15076.13-1994 Methods for chemical analysis of tantalum and niobium-Determination of nitrogen content in tantalum
GB/T 5551-2010 Surface active agents.Determination for total calcium ion and magnesium ion contents in dispersing agents
GB/T 23196-2008 Determination of ferulic acid content in propolis.HPLC-UV method
GB/T 19227-2003 Determination of nitrogen in coal and coke semi-micro gasification method
GB/T 5687.4-1985 Methods for chemical analysis of ferro-chromium--The neutralization titration method for the determination of nitrogen content
GB 3999.1-1983 Method for the determination of anthracene content of crude anthracene

German Institute for Standardization, Determination method of total nitrogen content in medium

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 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 15561:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version CEN/TS 15561:2007
DIN ISO 11261:1997 Soil quality - Determination of total nitrogen - Modified Kjeldahl method (ISO 11261:1995)
DIN 53308:1968 Testing of leather; determination of the contents of total nitrogen and of ammonium salts, calculation of hide substance
DIN CEN/TS 15560:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German version CEN/TS 15560:2007
DIN ISO 13878:1998 Soil quality - Determination of total nitrogen content by dry combustion ("elemental analysis") (ISO 13878:1998)
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 ISO 14255:1998 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant (ISO 14255:1998)
DIN EN 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods; German version EN 15104:2011
DIN 51722-1:1990 Testing of solid fuels; determination of nitrogen content; semi-micro Kjeldahl method
DIN 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 (ISO 13395:1996); German version EN ISO 13395:1996
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 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

British Standards Institution (BSI), Determination method of total nitrogen content in medium

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 4267-2:1988 Ammonium nitrate - Method for determination of total 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 15561:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
BS EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
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 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
DD ENV 12260-1996 Water quality. Determination of nitrogen. Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
BS DD CEN/TS 15560:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
BS EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
BS 7755-3.7:1995 Soil quality. Chemical methods. Determination of total nitrogen. Modified Kjeldahl method
BS ISO 29541:2010 Solid mineral fuels. Determination of total carbon, hydrogen and nitrogen content. Instrumental method
BS ISO 17997-2:2005 Milk - Determination of casein-nitrogen content - Direct method
BS EN 15104:2011 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 4401-2:1980 Methods of test for meat and meat products. Determination of nitrogen content (reference method)
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 ISO 6851:2002 Photography - Processing waste - Determination of total amino nitrogen (microdiffusion Kjeldahl method)
DD ISO/TS 12902:2002 Solid mineral fuels. Determination of total carbon, hydrogen and nitrogen. Instrumental methods
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 1715-2.2:1989 Analysis of soaps. Quantitative test methods. Method for determination of total free alkali content
BS DD CEN/TS 14774-1:2004 Solid biofuels - Methods for the determination of moisture content - Oven dry method - Total moisture - Reference method

European Committee for Standardization (CEN), Determination method of total nitrogen content in medium

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 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 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
EN 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental 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

Japanese Industrial Standards Committee (JISC), Determination method of total nitrogen content in medium

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 K 0104:1984 Methods for determination of oxides of nitrogen in flue gases
JIS K 0104:2011 Methods for determination of nitrogen oxides in flue gas
JIS K 0551:1994 Testing methods for total organic carbon in highly purified water
JIS G 1228 AMD 1:2006 Iron and steel -- Methods for determination of nitrogen content (Amendment 1)
JIS M 8212:1994 Iron ores -- Methods for determination of total iron content
JIS P 8205:1976 Method of testing pitch content of paper pulp
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 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 D 1030:1998 Automobiles -- Analytical procedure for measurement of carbon monoxide, carbon dioxide, total hydrocarbons and oxides of nitrogen in exhaust gas
JIS H 0608:1978 Estimation of boron content in silicon
JIS H 1651:1971 Methods for determination of chlorine in zirconium
JIS H 1681:1976 Methods for determination of carbon in tantalum
JIS H 1695:1976 Methods for determination of oxygen in tantalum
JIS H 1696:1976 Method for determination of hydrogen in tantalum
JIS H 1697:1976 Method for determination of molybdenum in tantalum
JIS H 1698:1976 Method for determination of fluorine in tantalum
JIS H 1067:1994 Methods for determination of oxygen in copper
JIS H 1615:1997 Method for determination of chlorine in titanium
JIS H 1696:2000 Method for determination of hydrogen in tantalum
JIS H 1067:2002 Methods for determination of oxygen in copper
JIS G 1234:1981 Methods for determination of tellurium in steel
JIS G 1236:1992 Method for determination of tantalum in steel

Professional Standard - Agriculture, Determination method of total nitrogen content in medium

GB 8572-1988 Determination of total nitrogen content in compound fertilizer
GB/T 42955-2023 Determination of total nitrogen content in fertilizers Dumas combustion method
GB 10511-1989 Determination of total nitrogen content in nitrophosphate fertilizers Titration after distillation
GB 3597-1983 Determination of nitrate nitrogen content in fertilizers Nitrogen reagent gravimetric method
GB 609-1988 General method for the determination of total nitrogen content of chemical reagents
GB 3598-1983 Determination of Urea Nitrogen Content in Fertilizers Urease Method
GB 3595-1983 Determination of ammonia nitrogen content in fertilizers Titration method after distillation
NY/T 1116-2006 Fertilizers-Determination of nitrate nitrogen content.UItraviolet spectro-photometric method
NY/T 2332-2013 Determination of total sugars in red ginseng.Spectrophotometry

Shandong Provincial Standard of the People's Republic of China, Determination method of total nitrogen content in medium

DB37/T 2735-2015 Determination of ammonium sulfate content in dry powder fire extinguishing agent Total nitrogen content method
DB37/T 337-2003 The detection method of pollen type and content in honey
DB37/T 343-2003 Determination method of phosphate content in cod and other aquatic products

Professional Standard - Commodity Inspection, Determination method of total nitrogen content in medium

SN/T 3097-2012 Determination of total nitrogen in fertelezers.Combustion
SN/T 0393-2013 Determination of total mercury in seafood for exports
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 4302-2015 Rapid detection method of tris-(aziridyl)phosphine oxide in textiles by gas chromatography-mass spectrometry
SN/T 2115-2008 Determination of the hotel nitrogen content and calculation of the crude protein content in food and feed for import and export.Combustion according to the Dumas principle
SN/T 0868-2000 Method for the determination of total stevioside content in stevia dried leave for import and export.Colorimetry
SN/T 3005-2011 Test method for instrumental determination of carbon,hydrogen,nitrogen and sulfur in organic chemicals
SN/T 1478-2004 Determination of titanium dioxide in cosmetics - ICP-AES
SN/T 0481.9-2010 Methods for inspection of bauxite for export.Part 9:Determination of free iron content.1,10-Phenanthroline spectrophotometric method
SN/T 0393-1995 Method for the inspection of mercury in fishery products for export
SN/T 2426-2010 Determination of citrinin contents in cereals for import and export-HPLC method
SN/T 3958-2014 Determination of total arsenic, lead, cadmium, copper content in plant extracts for import and export
SN/T 1511.1-2005 Inspection of lactic acid in fruit juice for import and export
SN/T 3810-2014 Determination of nitrogen content in urea and ammonium sulphate.X-ray fluorescence spectrometry

CZ-CSN, Determination method of total nitrogen content in medium

CSN 65 4836-1983 Minerál fertilizers Methode for determination of total nitrogen content
CSN 46 7092-29-1998 Testing methods for feeding stuffs - Part 29: Determination of amonia content in the fish meals

PT-IPQ, Determination method of total nitrogen content in medium

NP 1612-2002 Meat and meat products Determination of nitrogen content Reference method
NP 3779-1988 Leather Determination of nitrogen content and hide substance. Titrimetric method

BE-NBN, Determination method of total nitrogen content in medium

NBN V 21-013-1978 Determination of the total nitrogen contaimng substances content of milk - Amido black method
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 03-056-1979 Ammonium nitrate for industrial use - Determination of total nitrogen content - Titrimetric method after distillation
NBN T 04-301-1983 Urea for industrial use - Determination of nitrogen content - Titrimetric raethod after distillation

YU-JUS, Determination method of total nitrogen content in medium

JUS H.B8.288-1983 Fertilizers. Determination of content total-nitrogen. Volumetric method
JUS H.G8.457-1991 Reagents. Potassium sulpbate. Determination of total nltrogen content. Colorlmetrlc metho?
JUS H.G8.083-1983 Reagents. Sodium chloride. Determination of total nitrogen content. Colorimetric method
JUS H.G8.435-1990 Reaqents. Potassium iodide. Determination of total nitroaen content. Colorimetric method
JUS H.G8.055-1983 Reagents. Hydrogen peroxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.290-1987 Reagents. Copper(ll) oxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.415-1991 Reagents. So?ium hydroxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.104-1984 Reagents. Potassium chloride. Determination of total nitrogen content. Colorimetric method
JUS H.G8.343-1988 Reagents. Zine chloride. Determination of total nitrogen content. Colorinetcic metbod
JUS H.G8.447-1990 Reagents. Zine sulphate heptahydrate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.489-1991 Reagents. Potassium permanganate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.514-1991 Reagents. Potassium hydroxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.298-1987 Reagents. Oxaiic acid dihydrate. Determination of total nitrogen content. Colorimetric metbod
JUS H.G8.261-1987 Reagents. Barium chloride dihydrate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.064-1983 Reagents. Copper sulphate pentahydrate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.280-1987 Reagents. lron(ll)sulphate heptahydrate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.158-1984 Reagents. Sodium carbonate anhydrous and sodium carbonate decahydrate. Determination of total ni-trogen contont. Colorimetric method
JUS F.S3.011-1989 Standard method of test far wool content of raw wool. Laboratorv scale
JUS B.H8.320-1988 Methods of analysis of coal and coke. Determination of nitrogen ccmtent - Makro Kjeldahl nethod
JUS H.Z1.137-1985 Testing of industrial vvaters. Determination of nitrite-nitrate and the combined nitrite-nitrate nitrogen, Spectrophotometric method

Group Standards of the People's Republic of China, Determination method of total nitrogen content in medium

T/GXAS 477-2023 Determination of total nitrogen content in sugarcane juice —sulphuric acid titrimetric method
T/CEC 125-2016 Determination method of total corrosive sulfur content in mineral insulating oil
T/CEC 539-2021 Determination of Total Sulfur Content in Transformer Oil by Gas Chromatography-Flame Photometry
T/CMES 01011-2023 Determination method for content of nitrogen, sulfur and phosphorus in recycled sand for foundry
T/CNIA 0016-2019 Determination of Hydrogen Chloride, Nitrogen, Oxygen and Total Carbon Content in Recycled Hydrogen for Polysilicon by Gas Chromatography
T/NAIA 097-2021 Determination of total phenolic content in Lycium barbarum by spectrophotometric method
T/CI 037-2021 The Concentration of Vitamin C in Enhanced VC Wheat Flour and the Method of Determination
T/LFX 005-2023 Rapid detection method of chloride ion in inorganic fertilizer
T/NXCL 023-2023 Determination of hydrogen and nitrogen in Beryllium— Inert gas fusion infrared absorption/ thermal conductivity method

American Society for Testing and Materials (ASTM), Determination method of total nitrogen content in medium

ASTM E258-67(2002) Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM E258-07 Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D5475-93(1997) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM D3228-08(2014) Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D5176-91(2003) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5176-91(1995) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5176-08 Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5475-93(2002) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM D5176-08(2015) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
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 D4129-98 Standard Test Method for Total and Organic Carbon in Water by High Temperature Oxidation and by Coulometric Detection
ASTM D4129-98(2003) Standard Test Method for Total and Organic Carbon in Water by High Temperature Oxidation and by Coulometric Detection
ASTM D412-98a(2002)e1 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers8212;Tension
ASTM D412-06ae1 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomersx2014;Tension
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 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 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 D3223-95 Standard Test Method for Total Mercury in Water
ASTM D3223-02 Standard Test Method for Total Mercury in Water
ASTM D3223-02(2007)e1 Standard Test Method for Total Mercury in Water
ASTM D3223-12 Standard Test Method for Total Mercury in Water
ASTM D4129-05 Standard Test Method for Total and Organic Carbon in Water by High Temperature Oxidation and by Coulometric Detection
ASTM D4129-05(2012) Standard Test Method for Total and Organic Carbon in Water by High Temperature Oxidation and by Coulometric Detection
ASTM D4129-05(2013) Standard Test Method for Total and Organic Carbon in Water by High Temperature Oxidation and by Coulometric Detection
ASTM D5176-20 Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
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 D3228-96 Standard Test Method for Total Nitrogen In Lubricating Oils and Fuel Oils By Modified Kjeldahl Method
ASTM D3228-01 Standard Test Method for Total Nitrogen In Lubricating Oils and Fuel Oils By Modified Kjeldahl Method
ASTM D3228-05 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D322-97(2002)e1 Standard Test Method for Gasoline Diluent in Used Gasoline Engine Oils by Distillation
ASTM D3228-03 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D3228-08 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D322-97(2016) Standard Test Method for Gasoline Diluent in Used Gasoline Engine Oils by Distillation
ASTM D3608-95(2005) Standard Test Method for Nitrogen Oxides (Combined) Content in the Atmosphere by the Griess-Saltzman Reaction
ASTM D2868-17 Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather, Wet Blue and Wet White
ASTM D7419-07 Standard Test Method for Determination of Total Aromatics and Total Saturates in Lube Basestocks by High Performance Liquid Chromatography (HPLC) with Refractive Index Detection
ASTM D3228-22 Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM D4629-12(2017) Standard Test Method for Trace Nitrogen in Liquid Petroleum Hydrocarbons by Syringe/Inlet Oxidative Combustion and Chemiluminescence Detection
ASTM UOP730-09 Total Oxygen in Liquid Hydrocarbons by Pyrolysis
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(2000)e1 Standard Test Method for Nitrogen Dioxide Content of the Atmosphere (Griess-Saltzman Reaction)
ASTM E258-67(1996)e1 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 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 D7704-11 Standard Test Method for Total Aldehydes in Styrene Monomer by Potentiometric Titration
ASTM D3618-85a(1999) Standard Test Method for Detection of Lead in Paint and Dried Paint Films
ASTM D3618-05(2022) Standard Test Method for Detection of Lead in Paint and Dried Paint Films
ASTM D361-65 Standard test method for lead content in paint and dry paint films

VN-TCVN, Determination method of total nitrogen content in medium

TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 6645-2000 Soil quality.Determination of total nitrogen content by dry combustion ("elemental analysis")
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 6643-2000 Soil quality.Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
TCVN 3646-1981 Tin ores.Method for the determination of total iron content
TCVN 3663-1981 Liquors.Method for the determination of total extract content
TCVN 2731-1987 Concentrate of chromium ore,.Method for the determination of total iron content

未注明发布机构, Determination method of total nitrogen content in medium

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

CEN - European Committee for Standardization, Determination method of total nitrogen content in medium

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
EN ISO 12799:2019 Nuclear energy - Determination of nitrogen content in UO2@ (U@Gd)O2 and (U@Pu)O2 sintered pellets - Inert gas extraction and conductivity detection method

Henan Provincial Standard of the People's Republic of China, Determination method of total nitrogen content in medium

DB41/T 1704-2018 Determination of total nitrogen content in compound fertilizers Dumas combustion method

PL-PKN, Determination method of total nitrogen content in medium

PN Z04075-1961 Speedy Me?hod for De?er mina?ion of Ni?rogen Oxyde* in Air
PN A86362-1965 Sugar of milk Test methods
PN A79528-17-1993 Spirit (ethyl alcohol). Methods of tests. Determination of voltile nitrogen basen content
PN C89085-17-1986 Epoxy resins Methods of testing Determination of total chlorine and bromine content

RO-ASRO, Determination method of total nitrogen content in medium

SR ISO 4176:1981 Fertilizers. Determination of nitrate nitrogen content. Nitrogen gravimetric method
SR ISO 5315:1984 Fertilizers. Determination of totai nitrogen content.Titrimetric method after distilation

Professional Standard - Non-ferrous Metal, Determination method of total nitrogen content in medium

YS/T 587.15-2023 Calcined coke for prebaked blocks— Part 15: Determination of total carbon,hydrogen and nitrogen contents

工业和信息化部/国家能源局, Determination method of total nitrogen content in medium

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

AR-IRAM, Determination method of total nitrogen content in medium

Danish Standards Foundation, Determination method of total nitrogen content in medium

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/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 10179:1989 Chemical analysis of ferrous materials. Determination of nitrogen (trace amount) in steels. Spectrophotometric method
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)

Lithuanian Standards Office , Determination method of total nitrogen content in medium

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 15104-2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods

AENOR, Determination method of total nitrogen content in medium

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 77325:2003 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").

国家市场监督管理总局、中国国家标准化管理委员会, Determination method of total nitrogen content in medium

GB/T 40723-2021 Rubber—Determination the contents of total sulfur and total nitrogen — Automatic analyser method
GB/T 24583.3-2019 Vanadium-nitrogen—Determination of nitrogen content—Distillation-neutralization titration method
GB/T 40535.1-2021 Test methods of continuous nitride ceramic fibers—Part 1：Nitrogen content
GB/T 17674-2021 Determination of nitrogen in crude oil—Boat-inlet chemiluminescence
GB/T 12442-2019 Test method for the hydroxyl groups content of silica glass
GB/T 39144-2020 Test method for magnesium content in gallium nitride materials—Secondary ion mass spectrometry
GB/T 8313-2018 Determination of total polyphenols and catechins content in tea

HU-MSZT, Determination method of total nitrogen content in medium

工业和信息化部, Determination method of total nitrogen content in medium

YB/T 4582.7-2017 Determination of total nitrogen content of ferrous silicon nitride by neutralization titration method
YB/T 4566.2-2016 Determination of nitrogen content of vanadium iron nitride, distillation and separation-acid-base neutralization titration method
QB/T 2623.9-2020 Soap test methods Determination of total active substance content in soap
QB/T 2623.2-2020 Soap test methods Determination of total free alkali content in soap
YS/T 1525-2022 Chemical analysis methods for nickel-platinum alloys, determination of oxygen and nitrogen content, pulse-infrared absorption method and thermal conductivity detection method
HG/T 5364-2018 Method for determination of copper content in copper-containing sludge
HG/T 5016-2016 Determination method of fluorine content in fluorine-containing waste gas

International Organization for Standardization (ISO), Determination method of total nitrogen content in medium

ISO 5315:1984 Fertilizers; Determination of total nitrogen content; Titrimetric method after distillation
ISO 3331:1975 Ammonium nitrate for industrial use — Determination of total nitrogen content — Titrimetric method after distillation
ISO 29541:2010 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen content - Instrumental 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 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 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 6851:2001 Photography - Processing waste - Determination of total amino nitrogen (microdiffusion Kjeldahl method)
ISO 12799:2015 Nuclear energy - Determination of nitrogen content in UO2, (U,Gd)O2 and (U,Pu)O2 sintered pellets - Inert gas extraction and conductivity detection method
ISO 914:1977 Sulphuric acid and oleum for industrial use; Determination of total nitrogen content; Titrimetric method after distillation
ISO 6851:1987 Photography; Processing waste; Determination of total amino nitrogen; Microdiffusion Kjeldahl method

Professional Standard - Military and Civilian Products, Determination method of total nitrogen content in medium

WJ 2128-1993 Method for Determination of Nitrogen Content in Primer

IN-BIS, Determination method of total nitrogen content in medium

SE-SIS, Determination method of total nitrogen content in medium

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

Professional Standard - Ferrous Metallurgy, Determination method of total nitrogen content in medium

YB/T 4530-2016 Nitrogen-bearing ferromanganese.Determination of nitrogen content.The distillation-neutralization titration method

Professional Standard - Petrochemical Industry, Determination method of total nitrogen content in medium

SH/T 0413-1992 Determination of Trace Basic Nitrogen Content in Liquid Paraffin
SH/T 0224-1992 Determination of Nitrogen Content in Petroleum Additives (Kirsch method)
SH/T 0253-1992 Determination of total sulfur content in light petroleum products (electrical method)
SH/T 0704-2001 Standard test method for nitrogen in petroleum and petroleum products by boat-inlet chemiluminescence

Tianjin Provincial Standard of the People's Republic of China, Determination method of total nitrogen content in medium

DB12/T 1023-2020 Determination of total nitrogen content in organic fertilizers Dumas combustion method

Professional Standard - Energy, Determination method of total nitrogen content in medium

NB/SH/T 6014-2020 Determination of Nitrogenous Compounds in Middle Distillates by Gas Chromatography-Nitrogen Chemiluminescence Detection
DL/T 2407-2021 Field Detection Method of Gas Content in Transformer Oil
NB/SH/T 0253-2021 Coulometry for Determination of Total Sulfur Content in Light Petroleum Products
NB/SH/T 0162-2021 Color indicator method for determination of basic nitrogen content in petroleum distillates

Xinjiang Provincial Standard of the People's Republic of China, Determination method of total nitrogen content in medium

DB65/ 037.2-2001 Detemination of Detergent content in gasoline

Military Standard of the People's Republic of China-General Armament Department, Determination method of total nitrogen content in medium

GJB 533.5-1988 Detection method for 45 components of submarine cabin air. Determination of nitrogen oxide content. Calibration tube method
GJB 337-1987 Determination method of nitrogen content of nitrocellulose (interferometer method)
GJB 770.303-1989 Test methods for gunpowder analysis: Determination of nitrogen content of nitrocellulose. Five-tube nitrogen meter method
GJB 337-1987(XG1-2015) Modification sheet 1-2015 for determination method of nitrogen content of nitrocellulose
GJB 533.22-1988 Detection method for 45 components of submarine cabin air. Determination of hydrogen, oxygen, nitrogen and methane content by gas chromatography.
GJB 533.23-1988 Detection method for 45 components of submarine cabin air. Determination of total hydrocarbon content by gas chromatography.

Professional Standard - Light Industry, Determination method of total nitrogen content in medium

QB/T 2623.3-2003 Test methods of soaps Determination of total alkali content and total fatty matter content in soaps
QB/T 2623.2-2003 Test methods of soaps Determination of free alkali content in soaps

NL-NEN, Determination method of total nitrogen content in medium

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
NEN 6482-1982 Water - Determination of the sum of ammoniacal and organically bound nitrogen according to Kjeldahl after mineralization with selenium
NEN 6481-1983 Water - Determination of the sum of ammoniacal and organically bound nitrogen according to Kjeldahl after mineralization with selenium

Professional Standard - Aerospace, Determination method of total nitrogen content in medium

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

ZA-SANS, Determination method of total nitrogen content in medium

SANS 12902:2007 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
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
SANS 377:2005 Standard test methods for selenium in water

BR-ABNT, Determination method of total nitrogen content in medium

PH-BPS, Determination method of total nitrogen content in medium

PTS 98-1970 Standardization of the Method of Test for the Determination of Total Nitrogen Content.Devarda Method
PTS 83-1970 Method of Test for the Determination of Nitrogen Content of Nitrate-Free Fertilizers

CU-NC, Determination method of total nitrogen content in medium

NC 24-64-1986 Inorganic Chemical Products Nitrogen, Determination of Oil Content
NC 26-76-1990 Drugs. Determination of Total Ashes. Testing Method
NC 24-65-1986 Inorganic Chemical Products Nitrogen. Determination of Water Vapor Content. Aerial Water Point Method

TR-TSE, Determination method of total nitrogen content in medium

TS 2428-1976 METHODS FOR THE CHEMICAL ANALYSIS OF IRON AND STEELS DETERMINATION OF NITROGEN CONTENT

ES-AENOR, Determination method of total nitrogen content in medium

国家质量监督检验检疫总局, Determination method of total nitrogen content in medium

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

Zhejiang Provincial Standard of the People's Republic of China, Determination method of total nitrogen content in medium

DB33/T 308-2001 Determination method of clenbuterol hydrochloride content in feed

Taiwan Provincial Standard of the People's Republic of China, Determination method of total nitrogen content in medium

CNS 6611-2008 Method of test for meat and meat products - Determination of total phosphorus content
CNS 12957-2007 Method of test for milk and milk products - Determination of total phosphorus content in edible cheese
CNS 6392-2008 Method of test for meat and meat products - Determination of total fat content
CNS 12957-1992 Method of Test for Milk and Milk Products:Determination of Total Phosphorus Content

Professional Standard - Machinery, Determination method of total nitrogen content in medium

JB/T 6647-1993 Determination of total carbon content in carbide Gas volumetric method
JB/T 6647-2011 The gas-volumetric method after combustion in the pipe furnace for the determination of total carbon content.Method for chemical analysis of carbonate

Standard Association of Australia （SAA）, Determination method of total nitrogen content in medium

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 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)

国家能源局, Determination method of total nitrogen content in medium

NB/SH/T 0980-2019 Determination of basic nitrogen content in petroleum fractions by potentiometric titration method

AT-ON, Determination method of total nitrogen content in medium

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

Liaoning Provincial Standard of the People's Republic of China, Determination method of total nitrogen content in medium

DB21/T 2559-2016 Detection method of total arsenic and total mercury residues in edible fungus culture medium

Hebei Provincial Standard of the People's Republic of China, Determination method of total nitrogen content in medium

DB13/T 2768.2-2018 Graphene powder material detection method part 2: Determination of carbon, nitrogen, hydrogen, sulfur, oxygen element content

ES-UNE, Determination method of total nitrogen content in medium

UNE-EN ISO 12799:2019 Nuclear energy - Determination of nitrogen content in UO2, (U,Gd)O2 and (U,Pu)O2 sintered pellets - Inert gas extraction and conductivity detection method (ISO 12799:2015) (Endorsed by Asociación Española de Normalización in July of 2019.)
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)

Professional Standard - Urban Construction, Determination method of total nitrogen content in medium

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

American National Standards Institute （ANSI), Determination method of total nitrogen content in medium

ANSI/PIMA IT4.47-1998 Photography (Processing) - Effluents - Determination of Total Amino Nitrogen - Microdiffusion Kjeldahl Method

CO-ICONTEC, Determination method of total nitrogen content in medium

ICONTEC 75-1992

Professional Standard - Coal, Determination method of total nitrogen content in medium

MT 279-1994 Harmful gas existing in mine air Detection method of nitrogen oxide（detector tube method）
MT/T 279-1994

VE-FONDONORMA, Determination method of total nitrogen content in medium

NORVEN 22-9-1965

Professional Standard - Forestry, Determination method of total nitrogen content in medium

LY/T 2557-2015 Method for determining the bio-based content of bio-based foam

Association of German Mechanical Engineers, Determination method of total nitrogen content in medium

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

Professional Standard - Chemical Industry, Determination method of total nitrogen content in medium

HG/T 4327-2012 Reclaimed water.Determination of total iron content.Spectrophotometric method

Jiangsu Provincial Standard of the People's Republic of China, Determination method of total nitrogen content in medium

DB32/T 1823-2011 Determination of Total Cholesterol Content in Poultry Eggs by Enzyme Colorimetric Method

农业农村部, Determination method of total nitrogen content in medium

NY/T 3676-2020 Determination of total triterpene content in Ganoderma lucidum by spectrophotometric method

The American Road & Transportation Builders Association, Determination method of total nitrogen content in medium

AASHTO T 255-2000 Standard Method of Test for Total Evaporable Moisture Content of Aggregate by Drying

Heilongjiang Provincial Standard of the People's Republic of China, Determination method of total nitrogen content in medium

DB23/T 2492-2019 Test method for content of carbon, nitrogen, hydrogen, sulfur and oxygen in graphene materials

Professional Standard - Aviation, Determination method of total nitrogen content in medium

HB 5297.25-2001 Methods of chemical analysis of titanium alloys - Determination of nitrogen content by steam distillation