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Determination of total nitrogen content in water

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

In the international standard classification, Determination of total nitrogen content in water involves: Soil quality. Pedology, Fuels, Fertilizers, Protection against fire, Milk and milk products, Edible oils and fats. Oilseeds, Farming and forestry, Inorganic chemicals, Non-ferrous metals, Water quality, Rubber, External water conveyance systems, Organic chemicals, Analytical chemistry, Ferrous metals, Petroleum products in general, Ferroalloys, Radiation protection, Radiation measurements, Beverages, Coals, Leather technology, Air quality, Photography, Animal feeding stuffs, Fruits. Vegetables, Wastes, Construction materials, Products of the chemical industry, Tobacco, tobacco products and related equipment, General methods of tests and analysis for food products, Processes in the food industry, Lubricants, industrial oils and related products, Test conditions and procedures in general, Equipment for entertainment, Paints and varnishes, Footwear, Testing of metals, Crude petroleum, Materials for the reinforcement of composites, Powder metallurgy, Road vehicles in general, Metalliferous minerals, Sugar. Sugar products. Starch, Pharmaceutics, Vocabularies, Raw materials for rubber and plastics, Meat, meat products and other animal produce, Textile auxiliary materials, Plastics, Cereals, pulses and derived products.

Indonesia Standards, Determination of total nitrogen content in water

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 06-6858-2002 Test methods of total coli bacteria in water by membrane filters
SNI ISO 9697:2009 Water quality - Measurement of gross beta activity in non-saline water - Thick source method
SNI 06-6989.14-2004 Water and waste water - Part 14: Test methods of dissolved oxygen by iodometry (azide modification)
SNI 06-6989.12-2004 Water and waste water - Part 12: Test methods of hardness of calcium (Ca) and magnesium (Mg) total by titrimetry methods
SNI ISO 9696:2009 Water quality - Measurement of gross alpha activity in non-saline water - Thick source method

PL-PKN, Determination of total nitrogen content in water

PN C04576 ArkusZ14-1973 Water and w?sie water Tes?s for nitrogen Calcula?ion of to?al nitrogen
PN C04586 ArkusZ05-1973 Water and waste water Tests for iron Determination of total anddissolved iron by EDTA method Rang?: above 10 mg/l
PN C04567 ArkusZ07-1971 Water and waste water. Study of silica content. Determination of to- tal silica by gravimetric method
PN C04593-1971 Water and waste water Determination of formaldehyde content
PN C04567 ArkusZ08-1971 Water and waste water Study of silica content Determination of total silica by colorimetric methods
PN C04540-04-1991 Water and waste water Tests for pH, acidity and alkalinity Determination of pH, total acidity and alkalinity in waste water with great content of iron and aluminium
PN C04288-12-1987 Technical fats Methods of testing Determination of water content
PN C04586 ArkusZ03-1973 Water and waste water Tests for iroin Ddtermination ocf toial and dis- solved iron by coloar?meltric method wilth 1,10 phenanthroline or with 2,2idipyridyl. Rang?: 0,02-f-10 mg/l
PN C04587 ArkusZ02-1973 Water and waste water Tests for sodium Determination of sodium by titrimetric method
PN C04596-02-1990 Water and waste water Tests for zinc Determination of zinc by zincon method
PN Z04009-04-1993 Air purity protection. Tests for content of nitrogen and its compounds. Determination of nitrates in dust in ambient air (imission) by spectrophotometric method with sodium salicilate

RU-GOST R, Determination of total nitrogen content in water

GOST EN 15478-2013 Fertilizers. Determination of total nitrogen in urea
GOST 30181.3-1994 Mineral fertilizers. Method for determination of mass fraction of nitrogen in fertilizers with nitrate nitrogen
GOST 26107-1984 Soils. Methods for determination of total nitrogen
GOST EN 15561-2013 Fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates
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 EN 15560-2013 Fertilizers. Determination of total nitrogen in calcium cyanamide nitrate free
GOST 32527-2013 Mineral nitrogen-containing substances. Determination in air and water
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 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 30181.6-1994 Mineral fertilizers. Method for determination of mass fraction of nitrogen in ammonium salts (in ammonium form, using the formaldehyde method)
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 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 18164-1972 Drinking water. Method for determination of total solids content
GOST R 52911-2013 Solid mineral fuel. Determination of total moisture
GOST 29302-1992 Ammonium nitrate for industrial use. Method for determination of total nitrogen content (titrimetric) after distillation
GOST 2082.2-1981 Molibdenum concentrates. Method for the determination of total moisture and oil content
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)

NL-NEN, Determination of total nitrogen content in water

NEN 6642-1992 Water-Calculation of total nitrogen content
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
NEN 6441-1979 Water -Determination of total hardness and calcium and magnesium content
NEN 6489-1982 Water - Photometric determination of total cyanide content
NEN 5934-1990 Aggregates for concrete - Determination of total moisture content
NEN 6494-1984 Water - Enzymatic determination of urea content in swimming water
NEN 6395-1992 Fruit lemonades - Determination of total phosphorus content - Spectrometric method
NEN 6578-1985 Rain water - Potentiometric determination of total inorganic fluoride content
NEN 6483-1982 Water - Potentiometric determination of the total fluoride content

Association Francaise de Normalisation, Determination of total nitrogen content in water

NF U42-416*NF EN 15478:2009 Fertilizers - Determination of total nitrogen in urea.
NF U42-147*NF EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrate
NF V04-211:1971 MILK. DETERMINATION OF TOTAL NITROGEN CONTENT. (KJELDAHL METHOD).
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 X31-111*NF ISO 11261:1995 Soil quality. Determination of total nitrogen. Modified kjeldahl method.
NF U42-146*NF EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free.
NF X34-117:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods.
NF T90-015:1975 TESTING WATER-DETERMINATION OF NITROGEN (AMMONIA)
NF U42-191:1988 Fertilizers. Nitrogenous fertilizers containing synthetic organic nitrogen. Determination of the types of nitrogen.
NF U42-151:1984 Fertilizers. Determination of total nitrogen content. Titrimetric method after distillation.
NF X34-117*NF EN ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen
NF M60-815:2008 Water quality - Measurement of gross alpha activity in non-saline water - Thick source method.
NF M60-816:2008 Water quality - Measurement of gross beta activity in non-saline water - Thick source method.
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 M01-015*NF ISO 579:2013 Coke - Determination of total moisture
NF EN ISO 16948:2015 Biocombustibles solides - Détermination de la teneur totale en carbone, hydrogène et azote
NF EN 13716:2002 Agents de surface - Détermination de la teneur en azote total basique - Titrage potentiométrique
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 T90-107:1978 TESTING WATER: DETERMINATION OF TOTAL CYANIDES CONTENT.
NF X43-009:1973 Nitrogen dioxyde content of the atmosphere (griess saltzman reaction).
NF T90-203:1979 Testing water - Aqueous effluents from petroleum refineries - Determination of total hydrocarbons.
XP U42-794*XP CEN/TS 17762:2022 Inorganic fertilizers - Determination of the copper content in ammonium nitrate fertilizers of high nitrogen content
XP CEN/TS 17762:2022 Engrais inorganiques - Détermination de la teneur en cuivre dans les engrais à base de nitrate d'ammonium et à forte teneur en azote
NF EN 16168:2012 Boues, biodéchets traités et sols - Détermination de la teneur totale en azote par combustion sèche
NF V04-407:2002 Meat, meat product and fishery products - Determination of nitrogen content and calculation of the protein content - Kjeldahl method.
XP U42-793*XP CEN/TS 17761:2022 Inorganic fertilizers - Determination of the chloride content in ammonium nitrate fertilizers of high nitrogen content
XP CEN/TS 17761:2022 Engrais inorganiques - Détermination de la teneur en chlorure des engrais à base de nitrate d'ammonium à forte teneur en azote
NF X34-118:2011 Solid biofuels - Determination of total content of sulfur and chlorine.
NF X34-118:2015 Solid biofuels - Determination of total content of sulphur and chlorine
NF X34-118*NF EN ISO 16994:2016 Solid biofuels - Determination of total content of sulfur and chlorine
NF T90-037-3*NF EN ISO 7393-3:2000 Water quality - Determination of free chlorine and total chlorine - Part 3 : iodometric titration method for the determination of total chlorine.
NF V03-767-1*NF EN ISO 16634-1:2008 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 1 : oilseeds and animal feeding stuffs.

SE-SIS, Determination of total nitrogen content in water

SIS SS 02 81 33-1991 Determination of the sum of the nitrite and nitrate nitrogen content of water
SIS 02 81 27-1974 Determ i nation of total phosphorous content of water
SIS 02 81 19-1974 Determination of calcium content of water
SIS SS 02 81 01-1992 Nitrogen content of water — Determination with Kjeldahl method after reduction with Devarda's alloy
SIS 02 81 20-1974 Determination of chloride content of water
SIS 02 81 26-1974 Determination of orthophosphate content of water
SIS SS 18 71 70-1990 Biofuels and peat — Determination of total moisture content
SIS SS 02 81 21-1983 Determination of the sum of calcium and magnesium in water -Titrimetric method

Professional Standard - Agriculture, Determination of total nitrogen content in water

GB 8572-1988 Determination of total nitrogen content in compound fertilizer
NY/T 1977-2010 Water-suluble fertilizers-Determination of total nitrogen, phosphorus and potassium content
NY/T 2542-2014 Fertilizers.Determination of total nitrogen content
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
NY/T 2010-2011 Determination of total flavonoids in citrus fruits and derived products
GB 7457-1987 Determination of total alkali content and total fat content in soap
GB 7456-1987 Determination of total free base content in soap
GB 3598-1983 Determination of Urea Nitrogen Content in Fertilizers Urease Method
GB/T 13173.2-1991 Determination of total active matter content in detergents
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 1295-2007 Determination of Flavones in Buckwheat and Its Products
NY/T 2332-2013 Determination of total sugars in red ginseng.Spectrophotometry

PT-IPQ, Determination of total nitrogen content in water

NP 3646-1987
NP 1612-2002 Meat and meat products Determination of nitrogen content Reference method
NP EN 12135-2000 Fruit and vegetable juices Determination of nitrogen content Kjeldahl method
E 211-1967
NP 1233-1976
NP 3779-1988 Leather Determination of nitrogen content and hide substance. Titrimetric method
NP 1273-1976

FI-SFS, Determination of total nitrogen content in water

SFS 3029 E-1976 In the event of any differences in interpretation of this standard the Finnish version shall take precedence over this translation
SFS 3039-1975
SFS 5183-1986

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

DB37/T 2735-2015 Determination of ammonium sulfate content in dry powder fire extinguishing agent Total nitrogen content method

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

SN/T 3097-2012 Determination of total nitrogen in fertelezers.Combustion
SN/T 0840-2015 Determination of nitrogen content of urea for import and export
SN/T 0840-1999 Method for the determination of nitrogen content of urea for import and export
SN/T 3382-2012 Determination of non-protein-nitrogen content in milk and dairy products for export

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

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 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 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 EN 15560:2023 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
BS ISO 9697:2015 Water quality. Gross beta activity in non-saline water. Test method using thick source
DD CEN/TS 15561:2007 Fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates
BS ISO 9696:2007 Water quality - Measurement of gross alpha activity in non-saline water - Thick source method
BS ISO 9697:2008 Water quality - Measurement of gross beta activity in non-saline water - Thick source method
BS EN 15561:2023 Inorganic fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates
BS EN ISO 16948:2015 Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen
DD ENV 12260-1996 Water quality. Determination of nitrogen. Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
BS 5551-4.1.3:1986 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation)
21/30442090 DC BS EN 15561. 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 EN ISO 7393-3:1990 Water quality. Determination of free chlorine and total chlorine. Iodometric titration method for the determination of total chlorine
BS EN 15104:2011 Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen. Instrumental 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 EN 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
DD ISO/TS 12902:2002 Solid mineral fuels. Determination of total carbon, hydrogen and nitrogen. Instrumental methods
BS ISO 5068-1:2007 Brown coals and lignites - Determination of moisture content - Indirect gravimetric method for total moisture
BS ISO 15914:2004 Animal feeding stuffs - Enzymatic determination of total starch content
PD CEN/TS 17762:2022 Inorganic fertilizers. Determination of the copper content in ammonium nitrate fertilizers of high nitrogen content
BS ISO 6851:2002 Photography - Processing waste - Determination of total amino nitrogen (microdiffusion Kjeldahl method)
BS DD CEN/TS 14774-1:2004 Solid biofuels - Methods for the determination of moisture content - Oven dry method - Total moisture - Reference method
BS DD CEN/TS 14774-2:2004 Solid biofuels - Methods for the determination of moisture content - Oven dry method - Total moisture - Simplified method
DD CEN/TS 15414-2:2010 Solid recovered fuels. Determination of moisture content using the oven dry method - Determination of total moisture content by a simplified method
BS EN ISO 16634-1:2008 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 1: Oilseeds and animal feeding stuffs
BS EN 13639:2002 Determination of total organic carbon in limestone
BS EN 13639:2017 Determination of total organic carbon in limestone
BS ISO 15237:2003 Solid mineral fuels - Determination of total mercury content of coal
BS ISO 15238:2003 Solid mineral fuels - Determination of total cadmium content of coal
BS ISO 15238:2016 Solid mineral fuels. Determination of total cadmium content of coal
BS ISO 15237:2016 Solid mineral fuels. Determination of total mercury content of coal
BS ISO 15672:2000 Rubber and rubber additives - Determination of total nitrogen content using an automatic analyser
PD CEN/TS 17761:2022 Inorganic fertilizers. Determination of the chloride content in ammonium nitrate fertilizers of high nitrogen content
BS ISO 23697-2:2023 Water quality. Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Chromotropic acid colour reaction
BS EN 196-10:2016 Methods of testing cement. Determination of the water-soluble chromium (VI) content of cement

German Institute for Standardization, Determination of total nitrogen content in water

DIN CEN/TS 15561:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version CEN/TS 15561:2007
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 CEN/TS 15560:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German version CEN/TS 15560:2007
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 EN 15561:2021 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German and English version prEN 15561:2021
DIN EN 15561:2021-12 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German and English version prEN 15561:2021 / Note: Date of issue 2021-11-05*Intended as replacement for DIN EN 15561 (2009-06).
DIN EN 15561:2009-06 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version EN 15561:2009 / Note: To be replaced by DIN EN 15561 (2021-12).
DIN EN 12135:1997-12 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method; German version EN 12135:1997
DIN EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; English version of DIN EN 15561:2009-06
DIN EN ISO 16948:2015-09 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (ISO 16948:2015); German version EN ISO 16948:2015
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 53308:1968 Testing of leather; determination of the contents of total nitrogen and of ammonium salts, calculation of hide substance
DIN EN 12260:2003 Water quality - Determination of nitrogen - Determination of bound nitrogen (TN<(Index)b>), following oxidation to nitrogen oxides; German version EN 12260:2003
DIN EN ISO 15651:2017-12 Nuclear energy - Determination of total hydrogen content in PuO<(Index)2> and UO<(Index)2> powders and UO<(Index)2>, (U,Gd)O<(Index)2> and (U,Pu)O<(Index)2> sintered pellets - Inert gas extraction and conductivity detectio...
DIN EN ISO 11905-1:1998 Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate (ISO 11905-1:1997); German version EN ISO 11905-1:1998
DIN EN 15560:2009-06 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German version EN 15560:2009 / Note: To be replaced by DIN EN 15560 (2021-12).
DIN EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version EN 15750:2009
DIN EN ISO 7393-3:2000 Water quality - Determination of free chlorine and total chlorine - Part 3: Iodometric titration method for the determination of total chlorine (ISO 7393-3:1990); German version EN ISO 7393-3:2000
DIN EN 15560:2023-10 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German version EN 15560:2023
DIN CEN/TS 17762:2022-07 Inorganic fertilizers - Determination of the copper content in ammonium nitrate fertilizers of high nitrogen content; German version CEN/TS 17762:2022
DIN EN 15561:2023-10 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version EN 15561:2023
DIN EN 15560:2021-12 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German and English version prEN 15560:2021 / Note: Date of issue 2021-11-05*Intended as replacement for DIN EN 15560 (2009-06).
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 CEN/TS 17761:2022-07 Inorganic fertilizers - Determination of the chloride content in ammonium nitrate fertilizers of high nitrogen content; German version CEN/TS 17761:2022
DIN EN ISO 16634-1:2009 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 1: Oilseeds and animal feeding stuffs (ISO 16634-1:2008); English version of DIN EN ISO 16634-1:
DIN EN ISO 10720:2007-06 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (ISO 10720:1997); German version EN ISO 10720:2007

BE-NBN, Determination of total nitrogen content in water

NBN V 21-013-1978 Determination of the total nitrogen contaimng substances content of milk - Amido black method
NBN T 03-056-1979 Ammonium nitrate for industrial use - Determination of total nitrogen content - Titrimetric method after distillation
NBN I-916-1968
NBN V 21-008-1977 Gravimetrie determination of the water content of dried milk
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 95-301-1977 Determination of the nitrogen oxides content of flue gasses -Photometrie method with chromotropic acid

VN-TCVN, Determination of total nitrogen content in water

TCVN 5265-1990 Bee products.Determination of total nitrogen content
TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 7373-2004 Soils quality.Index values of total nitrogen content in the soils of Vietnam
TCVN 7252-2003 Tobacco and tobacco products.Determination of total nitrogen content
TCVN 6053-2011 Water quality.Measurement of gross alpha activity in non-saline water.Thick source method
TCVN 6219-2011 Water quality.Measurement of gross beta activity in non-saline water.Thick source method
TCVN 3706-1990 Aquatic products.Method for the determination of nitrogen ammonia content
TCVN 6645-2000 Soil quality.Determination of total nitrogen content by dry combustion ("elemental analysis")
TCVN 3707-1990 Aquatic products.Method for the determination of amine ammonia nitrogen 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 3708-1990 Aquatic products.Method for the determination of nitrogen amino acid content

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

GB/T 17767.1-1999 Determination of total nitrogen content for organic-inorganic compound fertilizers
GB/T 2441.1-2001 Determination of urea-Determination of total nitrogen content
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 9823-1988 Method for determination of total nitrogen content in oilseed residues
GB/T 23835.12-2009 Lithium perchlorate anhydrous.Part 12:Determination of total nitrogen content
GB/T 3597-2002 Fertilizer--Determination of nitrate nitrogen content--Nitron gravimetric 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 2441.1-2008 Determination of urea.Part 1:Total nitrogen content
GB/T 24583.3-2009 Vanadium-Nitrogen alloy.Determination of nitrogen content.The distillation-neutralization titration method
GB/T 41965-2022 Photography—Processing waste—Determination of total amino nitrogen(microdiffusion Kjeldahl method)
GB/T 10209.1-2001 Determination of total nitrogen content for monoammonium phosphate and diammonium phosphate(Titrimetric method after distillation)
GB/T 9823-2008 Inspection of grain and oils.Determination of total nitrogen content in plant oilseeds residues
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 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 3600-2000 Fertilizers-Determination of ammoniacal nitrogen content-Formaldehyde method
GB/T 23952-2009 Inorganic chemicals for industrial use.General method for the determination of total nitrogen content.Distillation-acid-base titrations method
GB/T 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 15672-2009 Determination of total saccharide in edible mushroom
GB/T 29660-2013 Determination of chromium in cosmetics
GB/T 13598-1992 A method for the determination of agricultural chemical residues containing nitrogenous in tobacco leaves
GB/T 21704-2008 Determination of non-protein-nitrogen content in milk and dairy products
GB/T 3598-1983 Fertilizers--Determination of urea nitrogen content--Urease 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 14605-1993 Determination of trace argon, nitrogen and krypton inoxygen. Gas chromatographic method
GB/T 13173.2-2000 Determination of total active matter content in detergents
GB/T 42491-2023 Determination of total starch content in feed by enzymatic method
GB/T 30647-2014 Determination of harmful elements total content of coatings
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 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 22788-2008 Determination of total lead content in surface coating on toys
GB/T 17674-1999 Determination of nitrogen in petroleum and petroleum products by chemiluminescence method
GB/T 17767.3-1999 Determination of total potassium content for organic-inorganic compound fertilizer
GB/T 17767.2-1999 Determination of total phosphorus content for organic-inorganic compound fertilizer
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 12152-2007 Water for boiler and cooling system.Determination of mineral oil

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

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 15560:2023 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
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 15561:2023 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
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 ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (ISO 16948:2015)
EN 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
EN ISO 9697:2017 Water quality - Gross beta activity in non-saline water - Test method using thick source
FprCEN/TS 17762-2021 Inorganic fertilizers - Determination of the copper content in ammonium nitrate fertilizers of high nitrogen content
EN 13639:2017 Determination of total organic carbon in limestone
FprCEN/TS 17761-2021 Inorganic fertilizers - Determination of the chloride content in ammonium nitrate fertilizers of high nitrogen content
EN ISO 960:1997 Plastics - Polyamides (PA) - Determination of Water Content ISO 960:1988
EN ISO 16634-1:2008 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 1: Oilseeds and animal feeding stuffs (ISO 16634-1:2008)

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

ISO 3099:1974 Oilseed residues — Determination of total nitrogen content
ISO 5315:1984 Fertilizers; Determination of total nitrogen content; Titrimetric method after distillation
ISO 9696:2007 Water quality - Measurement of gross alpha activity in non-saline water - Thick source method
ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen
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 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/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 9697:1992 Water quality; measurement of gross beta activity in non-saline water
ISO 8245:1987 Water quality; Guidelines for the determination of total organic carbon (TOC)
ISO 6851:2001 Photography - Processing waste - Determination of total amino nitrogen (microdiffusion Kjeldahl method)
ISO 15237:2003 Solid mineral fuels - Determination of total mercury content of coal
ISO 15238:2003 Solid mineral fuels - Determination of total cadmium content of coal
ISO/CD 15237:1976 Solid mineral fuels — Determination of total mercury content of coal
ISO/CD 15238:1976 Solid mineral fuels — Determination of total cadmium content of coal
ISO 914:1977 Sulphuric acid and oleum for industrial use; Determination of total nitrogen content; Titrimetric method after distillation
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/DTS 17234:2002 Leather - Chemical tests - Determination of certain azo colourants in dyded leathers
ISO 6851:1987 Photography; Processing waste; Determination of total amino nitrogen; Microdiffusion Kjeldahl method
ISO/R 960:1969 Plastics — Determination of the water content in polyamides
ISO 960:1988 Plastics; polyamides (PA); determination of water content
ISO 5068-1:2007 Brown coals and lignites - Determination of moisture content - Part 1: Indirect gravimetric method for total moisture
ISO 16634-1:2008 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 1: Oilseeds and animal feeding stuffs
ISO 9697:2008 Water quality - Measurement of gross beta activity in non-saline water - Thick source method
ISO 9696:1992 Water quality; measurement of gross alpha activity in non-saline water; thick source method

YU-JUS, Determination of total nitrogen content in water

JUS H.G8.298-1987 Reagents. Oxaiic acid dihydrate. Determination of total nitrogen content. Colorimetric metbod
JUS H.G8.447-1990 Reagents. Zine sulphate heptahydrate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.261-1987 Reagents. Barium chloride dihydrate. 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 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.G8.104-1984 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 E.Z8.016-1993 Soups,broaths,sauces and seasonings - Determination of total nitrogen content
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 E.L8.005-1980 Method of determination ofwather content in caces
JUS H.Z1.137-1985 Testing of industrial vvaters. Determination of nitrite-nitrate and the combined nitrite-nitrate nitrogen, Spectrophotometric method
JUS E.M8.022-1987 Determination of moisture in bakery yeast
JUS F.S2.011-1989 Testing of textiles. Detennination of moisture regain in wool

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

T/GXAS 477-2023 Determination of total nitrogen content in sugarcane juice —sulphuric acid titrimetric method
T/GZSX 081-2021 Determination of total flavonoids in Rosa roxburghii juice
T/GDASE 0009-2020 Determination of the content of carbon, hydrogen, oxygen, nitrogen and sulfur in graphene
T/CNIA 0016-2019 Determination of Hydrogen Chloride, Nitrogen, Oxygen and Total Carbon Content in Recycled Hydrogen for Polysilicon by Gas Chromatography
T/GZCX 020-2022 Determination of total phenol content in Rosa roxburghii and its products
T/NAIA 097-2021 Determination of total phenolic content in Lycium barbarum by spectrophotometric method
T/GZCX 018-2022 Determination of total flavonoids content in Rosa roxburghii and its products
T/NXCL 023-2023 Determination of hydrogen and nitrogen in Beryllium— Inert gas fusion infrared absorption/ thermal conductivity method
T/NAIA 0188-2023 Determination of total flavonoids content in wolfberry leaves and wolfberry tea
T/SXCIES 002-2020 Crude benzol- Determination of moisture content

CZ-CSN, Determination of total nitrogen content in water

CSN 44 1384-1978 Determination of total moisture content in coke
CSN 65 4814-1976 Determinaíion of nitrogen oontent in fertilizers
CSN 83 0540 Cast.13-1984 Chemical and physical analysis of waste water Determination of organic and total nitrogen
CSN 65 4836-1983 Minerál fertilizers Methode for determination of total nitrogen content
CSN 50 0393-1986 Determination of the content of or- ganic nitrogen in páper and paper- board
CSN 66 2105-1983 Petroleum benzene. Detcrmination of tu- tal content of sulphur by Raney-niekel
CSN 46 7092-29-1998 Testing methods for feeding stuffs - Part 29: Determination of amonia content in the fish meals
CSN 83 0521 Cast.5-1976 Determination of tars in phenol waste waters
CSN 83 0570-1963 Determination of sulphocyanides in phenol waste waters
CSN 83 0571-1963 Determination of tars in phenol waste waters
CSN EN 10 179-1993 Chemical analysis of ferrous metals — Determination of nitrogen (trace amounts) in steels — Spectrophotometric method

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

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

RO-ASRO, Determination of total nitrogen content in water

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
STAS 12200-1985 SLUDGES RESULTED FROM= SURFACE WATERS TREATMENT AND WASTE WATERS PURIFI- CATION Nitrogen content determination
STAS 9065/7-1974 MEAT AND MEAT PRODUCTS Determination of easyly hydrolisable nitrogen content
STAS 12303-1985 WATER Determination ol cesium 137 content
STAS 12293-1985 WATER Determination of 3 hydrogen (tritium) content
STAS 12218-1984 WATER Determination of iodine 131 content
STAS 12031-1984 WATER Radon 222 content determination
STAS SR 12303-1997 Water - Determination of caesium 137 content
STAS 6536-1987 DRINKING WATER Determination of dissolved oxygen content in water
STAS 7725-1967

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

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 M 8820 ERRATUM 1:2001 Coal and coke -- Determination of total moisture content of a lot (Erratum 1)
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 D 1030:1998 Automobiles -- Analytical procedure for measurement of carbon monoxide, carbon dioxide, total hydrocarbons and oxides of nitrogen in exhaust gas
JIS M 8820:2000 Coal and coke -- Determination of total moisture content of a lot
JIS K 0400-22-10:1999 Water quality -- Guidelines for the determination of total organic carbon (TOC)

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

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 38423-2019 Determination of total concentration of certain elements in toys
GB/T 17674-2021 Determination of nitrogen in crude oil—Boat-inlet chemiluminescence
GB/T 39144-2020 Test method for magnesium content in gallium nitride materials—Secondary ion mass spectrometry

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

EN ISO 8968-4:2001 Milk - Determination of Nitrogen Content - Part 4: Determination of Non-Protein Nitrogen Content
PD CEN/TS 15561:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
PD CEN/TS 15104:2005 Solid biofuels - Determination of total content of carbon@ hydrogen and nitrogen - Instrumental methods
EN ISO 9697:2019 Water quality - Gross beta activity - Test method using thick source
EN ISO 10704:2019 Water quality - Gross alpha and gross beta activity - Test method using thin source deposit

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

KS M ISO 5315-2007(2012) Fertilizers－Determination of total nitrogen content－Titrimetric method after distillation
KS D 1811-2003 Methods for determination of nitrogen in iron and steel
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 I ISO 9696:2007 Water quality－Measurement of gross alpha activity in non-saline water－Thick source method
KS E ISO 589-2002(2017) Metallic and other non-organic coatings－Measurement of coating thicknesses－Fizeau multiple-beam interferometry method
KS M ISO 16948:2021 Solid biofuels — Determination of total content of carbon, hydrogen and nitrogen
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 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 H ISO 1871-2013(2018) Agricultural food products ― General directions for the determination of nitrogen by the Kjeldahl method
KS M ISO 5397-2002(2017) Leather－Determination of nitrogen content and “hide substance”－Titrimetric method
KS F 2550-2017 Methods of test for total moisture content of aggregate and surface moisture in aggregate by drying
KS I ISO 14255:2009 Soil quality－Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
KS I ISO 9697:2007 Water quality－Measurement of gross beta activity in non-saline water
KS D ISO 10720:2003 Steel and iron-Determination of nitrogen content-Thermal conductimetric method after fusion in a current of inert gas

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

ASTM E258-67(2002) Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
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 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 E258-07 Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D3228-08(2014) Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils 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 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 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 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 D5176-08(2015) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D4931-92(2002) Standard Test Method for Gross Moisture in Green Petroleum Coke
ASTM D4931-92(1997) Standard Test Method for Gross Moisture in Green Petroleum Coke
ASTM D4931-06 Standard Test Method for Gross Moisture in Green Petroleum Coke
ASTM D4931-06(2011) Standard Test Method for Gross Moisture in Green Petroleum Coke
ASTM D1607-91(2018)e1 Standard Test Method for Nitrogen Dioxide Content of the Atmosphere (Griess-Saltzman Reaction)
ASTM D3731-87(2004) Standard Practices for Measurement of Chlorophyll Content of Algae in Surface Waters
ASTM D1886-03 Standard Test Methods for Nickel in Water
ASTM D3866-02 Standard Test Methods for Silver in Water
ASTM D3866-92(1996) Standard Test Methods for Silver in Water
ASTM D3372-02(2007)e1 Standard Test Method for Molybdenum in Water
ASTM D3558-03 Standard Test Methods for Cobalt in Water
ASTM D3866-07 Standard Test Methods for Silver in Water
ASTM D3372-92(1996) Standard Test Method for Molybdenum in Water
ASTM D3372-02 Standard Test Method for Molybdenum in Water
ASTM D3373-03(2007)e1 Standard Test Method for Vanadium in Water
ASTM D3373-03 Standard Test Method for Vanadium in Water
ASTM D3859-03 Standard Test Methods for Selenium in Water

AR-IRAM, Determination of total nitrogen content in water

TN-INNORPI, Determination of total nitrogen content in water

NT 14.33-1983

NO-SN, Determination of total nitrogen content in water

NS 4865-1983 Air quality - Determination of the sum of nitrite- and nitrate-nitrogen in precipitation

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

YB/T 4582.7-2017 Determination of total nitrogen content of ferrous silicon nitride by neutralization titration method
YB/T 4566.5-2016 Determination of vanadium ferrosilicon content by sulfuric acid dehydration gravimetric method
YB/T 4566.2-2016 Determination of nitrogen content of vanadium iron nitride, distillation and separation-acid-base neutralization titration method
YB/T 4582.8-2017 Determination of silicon content in ferrosilicon nitride perchloric acid dehydration gravimetric method

Danish Standards Foundation, Determination of total nitrogen content in water

DS/EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
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 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
DS/ISO 29541:2011 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen content - Instrumental method
DS/EN 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
DS/ISO 10704:2010 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method
DS 204:1980 Determination of total residue and total fixed residue in water, sludge and sediment

Lithuanian Standards Office , Determination of total nitrogen content in water

LST EN 15561-2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
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 12135-2001 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
LST EN 15104-2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
LST EN ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (ISO 16948:2015)
LST 1611-2000 Confectionery. Methods for determination moisture and total solids content

AENOR, Determination of total nitrogen content in water

UNE-EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
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 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method

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

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

KR-KS, Determination of total nitrogen content in water

KS M ISO 16948-2021 Solid biofuels — Determination of total content of carbon, hydrogen and nitrogen

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

BS 4267-2:1988(1999) Ammonium nitrate — Part 2 : Method for determination of total nitrogen content

ES-UNE, Determination of total nitrogen content in water

UNE-EN ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (ISO 16948:2015)
UNE-CEN/TS 17762:2022 Inorganic fertilizers - Determination of the copper content in ammonium nitrate fertilizers of high nitrogen content (Endorsed by Asociación Española de Normalización in May of 2022.)
UNE-CEN/TS 17761:2022 Inorganic fertilizers - Determination of the chloride content in ammonium nitrate fertilizers of high nitrogen content (Endorsed by Asociación Española de Normalización in May of 2022.)

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

HG/T 4327-2012 Reclaimed water.Determination of total iron content.Spectrophotometric method
HG/T 3540-2011 Industrial circulating cooling water.Determination of total phosphate
HG/T 4324-2012 Pickling solution.Determination of total iron content

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

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

ZA-SANS, Determination of total nitrogen content in water

SANS 5849:2008 Total water-soluble salts content of fines in aggregates
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 5849:2002 Total water-soluble salts content of fines in aggregates
SANS 12902:2007 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
SANS 377:2005 Standard test methods for selenium in water
SANS 7393-3:2005 Water quality - Determination of free chlorine and total chlorine Part 3: Iodometric titration method for the determination of total chlorine
SANS 15237:2004 Solid mineral fuels - Determination of total mercury content of coal
SANS 15238:2004 Solid mineral fuels - Determination of total cadmium content of coal

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, Determination of total nitrogen content in water

GB/T 34532-2017 Coking wastewater—Determination of ammonia nitrogen content—Formaldehyde method

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

QB/T 3750-1999 Determination of total alkali content and total fat content in soap
QB/T 3749-1999 Determination of total free base content in soap
QB/T 2623.3-2003 Test methods of soaps Determination of total alkali content and total fatty matter content in soaps

Canadian Standards Association (CSA), Determination of total nitrogen content in water

CAN/CSA-ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (First Edition)

HU-MSZT, Determination of total nitrogen content in water

农业农村部, Determination of total nitrogen content in water

NY/T 3030-2016 Determination of total water-soluble sugar content in cotton by anthrone colorimetric method
NY/T 3676-2020 Determination of total triterpene content in Ganoderma lucidum by spectrophotometric method

AT-ON, Determination of total nitrogen content in water

ONORM S 7009-1982 Testing of leather; determination of the contents of total nitrogen and of ammonium salts; calculation of hide substance
ONORM DIN 10321-1993 Determination of water content of dried milk
ONORM DIN 10317-1993 Determination of water content of butter
ONORM DIN 10334-1994 Determination of nitrogen content of milk according to Kjeldahl and calculation of crude protein content

商业部, Determination of total nitrogen content in water

SB/T 10010-1992 Determination of total sugar content in frozen drinks
SB/T 10009-1992 Determination of total solids content in frozen beverages

ES-AENOR, Determination of total nitrogen content in water

UNE 59-018-1986
UNE 80-217-1991 Methods of testing cement. Determination of the chloride, carbon dioxide and alcali content of cement
UNE 55-595-1981

GOSTR, Determination of total nitrogen content in water

GOST R 52911-2020 Solid mineral fuel. Determination of total moisture

IN-BIS, Determination of total nitrogen content in water

Sichuan Provincial Standard of the People's Republic of China, Determination of total nitrogen content in water

DB51/T 1790-2014 Determination of total lead content in non-metallic shoe materials

CU-NC, Determination of total nitrogen content in water

NC 04-22-1968 Gravimetric determinacion of total silicon in steels and cast irons
NC 04-27-1969 Photometric determination of total silicon in steels and cast irons
NC 28-08-1987 Fertilxzers. Mixed, Granulated and Complex Fertilizers. Determination of Total Nitrogen, Assimilable Phosphorus and Potassium by the Weighing Method

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

SN/T 4764-2017 Elemental analyzer method for determination of carbon, hydrogen, nitrogen and sulfur content in coal
SN/T 0868-2017 Determination of total glycoside content in exported stevia

Anhui Provincial Standard of the People's Republic of China, Determination of total nitrogen content in water

DB3418/T 005-2019 Determination of moisture content in ink sticks
DB34/T 3690-2020 Determination of carbon dioxide and nitrogen content in liquefied petroleum gas

Professional Standard - Machinery, Determination of total nitrogen content in water

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

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

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

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

SH/T 1498.3-1997 Nylon 66 salt.Determination of content of total volatile bases

国家能源局, Determination of total nitrogen content in water

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

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

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

Professional Standard - Energy, Determination of total nitrogen content in water

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

TR-TSE, Determination of total nitrogen content in water

TS 1129-1972 FRUIT AND VEGETABLE PRODUCTS DETERMINATION OF TOTAL SOLIDE

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

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

Professional Standard - Aviation, Determination of total nitrogen content in water

HB 5297.17-1984 Determination of Nitrogen in Titanium and Titanium Alloys by Steam Distillation

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

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

Chongqing Provincial Standard of the People's Republic of China, Determination of total nitrogen content in water

DB50/T 452-2012 Determination of total tin content in dibutyltin dilaurate

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

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

International Truck and Engine Corporation (ITEC), Determination of total nitrogen content in water

INTERN CEMS BT-38-2009 Test For Water Content In Air Conditioner Refrigerant