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Total nitrogen content in water quality

Total nitrogen content in water quality, Total:316 items.

In the international standard classification, Total nitrogen content in water quality involves: Soil quality. Pedology, Fuels, Fertilizers, Protection against fire, Water quality, Radiation protection, Radiation measurements, Inorganic chemicals, Milk and milk products, Farming and forestry, Animal feeding stuffs, Leather technology, Testing of metals, Construction materials, Petroleum products in general, Organic chemicals, Products of the textile industry, Meat, meat products and other animal produce, Analytical chemistry, Wood, sawlogs and sawn timber, Adhesives, Fruits. Vegetables, Air quality, Pesticides and other agrochemicals, Products of the chemical industry, Lubricants, industrial oils and related products, General methods of tests and analysis for food products, Pulps, Shipbuilding and marine structures in general, Paint ingredients, Environmental protection, Coals, Non-metalliferous minerals, Physics. Chemistry, Rubber, Test conditions and procedures in general, Spices and condiments. Food additives, Paints and varnishes, Microbiology.

PL-PKN, Total nitrogen content in water quality

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 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 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 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

NL-NEN, Total nitrogen content in water quality

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 6523-1990 Water - A method for the calculation of the content of hydrogen carbonate, carbon dioxide and carbonate from total carbon dioxide content and the pH
NEN-ISO 6595:1993 Water quality. Determination of total arsenic. Silver diethyldithiocarbamate spectrophotometric method (ISO 6595:1982)

VN-TCVN, Total nitrogen content in water quality

TCVN 7373-2004 Soils quality.Index values of total nitrogen content in the soils of Vietnam
TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein 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 6645-2000 Soil quality.Determination of total nitrogen content by dry combustion ("elemental analysis")
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 7374-2004 Soils quality.Index values of total phosphorus content in the soils of Vietnam
TCVN 7375-2004 Soils quality.Index values of total potassium content in the soils of Vietnam
TCVN 7376-2004 Soils quality.Index values of total organic carbon content in the soils of Vietnam
TCVN 6654-2000 Soil quality.Determination of water content in the unsaturated zone.Neutron depth probe method

Indonesia Standards, Total nitrogen content in water quality

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 ISO 9697:2009 Water quality - Measurement of gross beta activity in non-saline water - Thick source method
SNI ISO 9696:2009 Water quality - Measurement of gross alpha activity in non-saline water - Thick source method
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 06-2505-1991 Water, Test methods for total organic carbon content by infrared KOT analyzers
SNI 06-6858-2002 Test methods of total coli bacteria in water by membrane filters

BE-NBN, Total nitrogen content in water quality

NBN V 21-013-1978 Determination of the total nitrogen contaimng substances content of milk - Amido black method

SE-SIS, Total nitrogen content in water quality

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 SS 02 81 01-1992 Nitrogen content of water — Determination with Kjeldahl method after reduction with Devarda's alloy

RU-GOST R, Total nitrogen content in water quality

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 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 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 R 53219-2008 Soil quality. Determination of nitrogen in air-dry soils using calcium chloride solution
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 R ISO 16634-1-2011 Food products. Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content. Part 1. Oilseeds and animal feeding stuffs
GOST 19728.13-2001 Talc and talcomagnesite. Method for determination of chlorine ions in water extract
GOST 19728.13-1988 Talc and talcomagnesite. Method for determination of chlorine ions in water extract
GOST 21119.2-1975 General methods of test for pigments and extenders. Determination of soluble in water matters mass fraction
GOST R 55229-2012 Food additives. Colorimetric method for total phosphorus mass content determination in raw materials for citric acid production

Professional Standard - Agriculture, Total nitrogen content in water quality

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
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
NY/T 2010-2011 Determination of total flavonoids in citrus fruits and derived products

Association Francaise de Normalisation, Total nitrogen content in water quality

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 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 X31-418*NF ISO 13878:1998 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").
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 ISO 13878:1998 Qualité du sol - Détermination de la teneur totale en azote par combustion sèche ("analyse élémentaire")
NF X34-117:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods.
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 V04-407:2002 Meat, meat product and fishery products - Determination of nitrogen content and calculation of the protein content - Kjeldahl method.
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 M60-819:2010 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method.
NF X31-505:1992 Soil quality - Physical methods - Method for determining the bulk volume and the water content of lumps of earth
NF ISO 10573:1996 Qualité du sol - Détermination de la teneur en eau de la zone non saturée - Méthode à la sonde à neutrons de profondeur.
NF T90-026:1993 Water quality - Determination of total arsenic - Silver diethyldithiocarbamate spectrophotometric method.
NF X31-115:2001 Soil quality - Sampling and storage of soil samples in view of determination of mineral nitrogen on fresh soil.
NF T90-131:1986 TESTING WATER. DETERMINATION OF TOTAL MERCURY BY FLAMELESS ATOMIC ABSORPTION SPECTROMETRY. METHOD AFTER DIGESTION WITH BROMINE.
NF X31-500*NF ISO 10573:1996 Soil quality. Determination of water content of the unsaturated zone. Neutron depth probe method.
NF T90-309:1993 WATER QUALITY. EVALUATION IN AN AQUEOUS MEDIUM OF THE "ULTIMATE" AEROBIC BIODEGRADABILITY OF ORGANIC COMPOUNDS. METHOD BY DETERMINING THE OXYGEN DEMAND IN A CLOSED RESPIROMETER. (EUROPEAN STANDARD EN 29408).
NF M60-820:2010 Water quality - Measurement of gross alpha and beta activity concentration in non-saline water - Liquid scintillation counting method.
NF Q03-093*NF EN 920:2000 Paper and board intended to come into contact with foodstuffs - Determination of dry matter content in an aqueous extract
NF U42-125:1985 Fertilizers. Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide. Titrimetric method.
NF T90-083-1*NF EN ISO 15681-1:2005 Water quality - Determination of orthophosphate and total phosphorus by flow analysis (FIA and CFA) - Part 1 : method by flow injection analysis (FIA).
NF T90-083-2:2005 Water quality - Determination of orthophosphate and total phosphorus by flow analysis (FIA and CFA) - Part 2 : method by continuous flow analysis (CFA).

Danish Standards Foundation, Total nitrogen content in water quality

DS 223:1991 Water analysis. Determination of the sum of nitrite- and nitrate-nitrogen
DS 285:1990 Water qulity. Total arsenic content. Spectrophotometric method
DS/ISO 10704:2010 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method
DS/ISO 10573:1997 Soil quality - Determination of water content in the unsaturated zone - Neutron depth probe method
DS/ISO 11704:2010 Water quality - Measurement of gross alpha and beta activity concentration in non-saline water - Liquid scintillation counting method
DS/EN 26595:1993 Water quality. Determination of total arsenic. Silver diethyldithiocarbamate spectrophotometric method
DS 264:1982 Water quality. Determination of manganese in water, sludge and sediment by atomic absorption spectrophotometry in flame

Shandong Provincial Standard of the People's Republic of China, Total nitrogen content in water quality

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

NO-SN, Total nitrogen content in water quality

NS 4865-1983 Air quality - Determination of the sum of nitrite- and nitrate-nitrogen in precipitation
NS 4869-1985 Air quality - Nitrogen dioxide content in workplace atmosphere - Colometric metod

FI-SFS, Total nitrogen content in water quality

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

British Standards Institution (BSI), Total nitrogen content in water quality

BS ISO 9697:2015 Water quality. Gross beta activity in non-saline water. Test method using thick source
BS EN 15750:2010 Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS ISO 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 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
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 EN ISO 7393-3:1990 Water quality. Determination of free chlorine and total chlorine. Iodometric titration method for the determination of total chlorine
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
22/30455832 DC BS EN 17892. Water quality. Determination of the sum of perfluorinated substances (Sum of PFAS) in drinking water. Method using liquid chromatography/mass spectrometry (LC/MS)
BS ISO 23697-1:2023 Water quality. Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Dimethylphenol colour reaction
BS 6068 Sec.3.1:1993 Water quality. Radiological methods. Measurement of gross alpha activity in non-saline water:thick source method
21/30426878 DC BS ISO 23697-2. Water quality. Determination of total nitrogen (TNb) in water using small-scale sealed tubes. Part 2. Chromotropic acid based method
15/30331502 DC BS EN ISO 9696. Water quality. Measurement of gross alpha activity in non-saline water. Thick source method
21/30426875 DC BS ISO 23697-1. Water quality. Determination of total nitrogen (TNb) in water using small-scale sealed tubes. Part 1. Dimethylphenol based method
BS ISO 10704:2010 Water quality. Measurement of gross alpha and gross beta activity in non-saline water. Thin source deposit method
BS ISO 10704:2009 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method
BS EN ISO 10695:2000 Water quality. Determination of selected organic nitrogen and phosphorus compounds. Gas chromatographic methods
BS EN ISO 15681-2:2004 Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Method by continuous flow analysis (CFA)
BS ISO 11704:2010 Water quality - Measurement of gross alpha and beta activity concentration in non-saline water - Liquid scintillation counting method
BS ISO 24196:2022 Lignins. Determination of lignin content in kraft lignin, soda lignin, and hydrolysis lignin
BS EN 26595:1983 Water quality - Determination of total arsenic - Silver diethyldithiocarbamate spectrophotometric method
BS 6068 Sec.3.2:1993 Water quality. Radiological methods. Measurement of gross beta activity in non-saline water
21/30398661 DC BS ISO 24196. Lignins. Determination of lignin content in kraft lignin, soda lignin, and hydrolysis lignin
BS 7755-5.2:1996 Soil quality. Physical methods. Determination of water content in the unsaturated zone. Neutron depth probe method
23/30446974 DC BS ISO 9795. Lignins. Determination of inorganics content in kraft lignin, soda lignin and hydrolysis lignin

German Institute for Standardization, Total nitrogen content in water quality

DIN ISO 11261:1997 Soil quality - Determination of total nitrogen - Modified Kjeldahl method (ISO 11261:1995)
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 15561:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version CEN/TS 15561:2007
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 ISO 13878:1998 Soil quality - Determination of total nitrogen content by dry combustion ("elemental analysis") (ISO 13878:1998)
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 CEN/TS 15560:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German version CEN/TS 15560:2007
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 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 17892:2022-09 Water quality - Determination of the sum of perfluorinated substances (Sum of PFAS) in drinking water - Method using liquid chromatography/mass spectrometry (LC/MS); German and English version prEN 17892:2022 / Note: Date of issue 2022-08-12
DIN ISO 14255:1998-11 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 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 13395:1996-12 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection (ISO 13395:1996); German version EN ISO 13395:1996
DIN 10470:2011 Milk and milk products - Determination of whey protein content and casein content in total protein - Derivative spectroscopic method
DIN EN ISO 11704:2015-11 Water quality - Measurement of gross alpha and beta activity concentration in non-saline water - Liquid scintillation counting method (ISO 11704:2010); German version EN ISO 11704:2015 / Note: To be replaced by DIN EN ISO 11704 (2017-10).
DIN 10464:1994 Determination of casein content, casein and whey protein contents in total protein of milk and milk products - Casein-phosphorus method
DIN 1164-31:1990 Portland-, Iron Portland-, blast furnace- and trass cement; determination of granulated blast furnace slag content of iron Portland cement and blast furnace cement and trass content of trass cement
DIN 53780:2014 Pigments and extenders - Determination of matter soluble in water - Hexavalent chromium content
DIN 53780:2006 Pigments and extenders - Determination of matter soluble in water - Hexavalent chromium content
DIN EN ISO 15681-1:2005 Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 1: Method by flow injection analysis (FIA) (ISO 15681-1:2003); German version EN ISO 15681-1:2004
DIN EN ISO 15681-2:2005 Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 2: Method by continuous flow analysis (CFA) (ISO 15681-2:2003); German version EN ISO 15681-2:2004
DIN EN ISO 10704:2015 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method (ISO 10704:2009); German version EN ISO 10704:2015

European Committee for Standardization (CEN), Total nitrogen content in water quality

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 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 9697:2017 Water quality - Gross beta activity in non-saline water - Test method using thick source
EN ISO 10704:2015 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method
EN 26595:1992 Water Quality - Determination of Total Arsenic - Silver Diethyldithiocarbamate Spectrophotometric Method (ISO 6595:1982)
EN ISO 11704:2015 Water quality - Measurement of gross alpha and beta activity concentration in non-saline water - Liquid scintillation counting method (ISO 11704:2010)
EN ISO 14403:2002 Water Quality - Determination of Total Cyanide and Free Cyanide by Continuous Flow Analysis ISO 14403: 2002
EN ISO 15681-2:2018 Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 2: Method by continuous flow analysis (CFA) (ISO 15681-2:2018)

CEN - European Committee for Standardization, Total nitrogen content in water quality

EN ISO 8968-4:2001 Milk - Determination of Nitrogen Content - Part 4: Determination of Non-Protein Nitrogen Content
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
EN ISO 11704:2018 Water quality - Gross alpha and gross beta activity - Test method using liquid scintillation counting

Professional Standard - Commodity Inspection, Total nitrogen content in water quality

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 4302-2015 Rapid detection method of tris-(aziridyl)phosphine oxide in textiles by gas chromatography-mass spectrometry

Korean Agency for Technology and Standards (KATS), Total nitrogen content in water quality

KS I ISO 9696:2007 Water quality－Measurement of gross alpha activity in non-saline water－Thick source method
KS I ISO 13878:2009 Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
KS M ISO 5397-2002(2017) Leather－Determination of nitrogen content and “hide substance”－Titrimetric 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 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 14255-2009(2019) 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 I ISO 15681:2014 Water quality — Determination of orthophosphate and total phosphorus contents by flow analysis(FIA and CFA)
KS I ISO 14403:2007 Water quality－Determination of total cyanide and free cyanide by continuous flow analysis
KS L 5502-1996 Testing method for water content of high aluminous plastic refractories and fireclay plastic refractories
KS L 5502-1986 Testing method for water content of high aluminous plastic refractories and fireclay plastic refractories
KS I ISO 15681-2014(2021) Water quality — Determination of orthophosphate and total phosphorus contents by flow analysis(FIA and CFA)
KS I ISO 10573-2005(2020) Soil quality－Determination of water content in the unsaturated zone(Neutron depth probe method)
KS I ISO 10573:2005 Soil quality-Determination of water content in the unsaturated zone(Neutron depth probe method)
KS I ISO 15681-1:2010 Water quality-Determination of orthophosphate and total phosphorus contents by flow analysis(FIA and CFA)-Part 1:Method by flow injection analysis(FIA)
KS I ISO 15681-2:2010 Water quality-Determination of orthophosphate and total phosphorus contents by flow analysis(FIA and CFA)-Part 2:Method by continuous flow analysis(CFA)

International Organization for Standardization (ISO), Total nitrogen content in water quality

ISO 9696:2007 Water quality - Measurement of gross alpha activity in non-saline water - Thick source 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 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 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 9697:2015 Water quality - Gross beta activity in non-saline water - Test method using thick source
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
ISO 23697-2:2023 Water quality — Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes — Part 2: Chromotropic acid colour reaction
ISO 10704:2009 Water quality - Measurement of gross alpha and gross beta activity in non-saline water - Thin source deposit method
ISO 23697-1:2023 Water quality — Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes — Part 1: Dimethylphenol colour reaction
ISO 14403:2002 Water quality - Determination of total cyanide and free cyanide by continuous flow analysis
ISO 24196:2022 Lignins — Determination of lignin content in kraft lignin, soda lignin and hydrolysis lignin
ISO 7408:1983 Fertilizers; Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide; Titrimetric method
ISO 10573:1995 Soil-quality - Determination of water content in the unsaturated zone - Neutron depth probe method
ISO 5666-3:1984 Water quality; Determination of total mercury by flameless atomic absorption spectrometry; Part 3 : Method after digestion with bromine
ISO 6595:1982 Water quality; Determination of total arsenic; Silver diethyldithiocarbamate spectrophotometric method
ISO/DIS 9795:1980 Lignins — Determination of inorganics content in kraft lignin, soda lignin and hydrolysis lignin
ISO/FDIS 9795:2023 Lignins — Determination of inorganics content in kraft lignin, soda lignin and hydrolysis lignin
ISO 29441:2010 Water quality - Determination of total nitrogen after UV digestion - Method using flow analysis (CFA and FIA) and spectrometric detection
ISO 5666-2:1983 Water quality; Determination of total mercury by flameless atomic absorption spectrometry; Part 2: Method after pretreatment with ultraviolet radiation
ISO/CD 16094-3 Water quality — Analysis of plastics in water — Part 3: Thermo-analytical methods for waters with low content of natural suspended solids
ISO 15681-1:2003 Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 1: Method by flow injection analysis (FIA)
ISO 15681-2:2003 Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 2: Method by continuous flow analysis (CFA)
ISO 15681-2:2018 Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 2: Method by continuous flow analysis (CFA)

YU-JUS, Total nitrogen content in water quality

JUS H.G8.447-1990 Reagents. Zine sulphate heptahydrate. 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 H.C8.218-1989 Pigments. Zine tetrahvdroxychromate. Determination of total matter soluble in water. Gravimetric method
JUS H.Z1.137-1985 Testing of industrial vvaters. Determination of nitrite-nitrate and the combined nitrite-nitrate nitrogen, Spectrophotometric method
JUS H.B8.910-1997 Determination of total inhibitor content (p-tertiaiy-butylcatechol) of light hydrocarbons - Spectrophotometric method
JUS H.B8.751-1982 1 J2,3,4,5jB-Hexachlorocyclohexant (Lindane), Water-di$persible povvdor. Determination of gamrna-iso- mer content by total chlorine method

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

GB/T 23835.12-2009 Lithium perchlorate anhydrous.Part 12:Determination of total nitrogen content
GB/T 17767.1-1999 Determination of total nitrogen content for organic-inorganic compound fertilizers
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 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 42263-2022 Determination of nitrogen content in silicon single crystal—Secondary ion mass spectrometry method
GB/T 10209.1-2001 Determination of total nitrogen content for monoammonium phosphate and diammonium phosphate(Titrimetric method after distillation)
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 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 23952-2009 Inorganic chemicals for industrial use.General method for the determination of total nitrogen content.Distillation-acid-base titrations method
GB/T 42490-2023 Soil quality Determination of organic carbon content and carbon isotope ratio, total nitrogen content and nitrogen isotope ratio in soil and biological samples Stable isotope ratio mass spectrometry
GB/T 23772-2009 Inorganic chemicals for industrial use.General method for the determination of total nitrogen content.Nessler's reagent colorimetric method
GB/T 42274-2022 Determination of the content and distribution of trace elements (magnesium, gallium) in aluminum nitride materials—Secondary ion mass spectrometry
GB 8858-1988 Method for determination of dry matter and moisture content in fruit and vegetable products
GB/T 8858-1988 Method for determination of dry matter and water content in fruit and vegetable products
GB/T 6435-2006 Determination of moisture and other volatile mater content in feeds

Group Standards of the People's Republic of China, Total nitrogen content in water quality

T/GXAS 477-2023 Determination of total nitrogen content in sugarcane juice —sulphuric acid titrimetric method
T/CNIA 0016-2019 Determination of Hydrogen Chloride, Nitrogen, Oxygen and Total Carbon Content in Recycled Hydrogen for Polysilicon by Gas Chromatography
T/SDAQI 064-2021 Determination of urea content in diesel engines NOx reduction agent - Aqueous urea solution by refractive index
T/GITU 010-2021 Determination of Total Content of Caranaldehyde and Its Isomers in Coatings by GC-MS

AENOR, Total nitrogen content in water quality

UNE 77325:2003 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").
UNE 77306:1999 SOIL QUALITY. DETERMINATION OF NITRATE NITROGEN, AMMONIUM NITROGEN AND TOTAL SOLUBLE NITROGEN IN AIR-DRY SOIL USING CALCIUM CHLORIDE SOLUTION AS EXTRACTANT.
UNE 40228-7:1974 DETERMINATION OF THE CONTENT IN VEGETABEL MATTER ANDOF THE TOTAL OF INSOLUBLE IMPURITIES IN ALKALI OF WASHED WOOL SUBSAMPLES.
UNE 80602:2011 Determination of biomass fraction in waste tires used as alternative fuel in cement plants

Henan Provincial Standard of the People's Republic of China, Total nitrogen content in water quality

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

CZ-CSN, Total nitrogen content in water quality

CSN 44 1384-1978 Determination of total moisture content in coke
CSN 83 0540 Cast.13-1984 Chemical and physical analysis of waste water Determination of organic and total nitrogen
CSN 65 7084-1983 Water-soluble matters contalned in asphalts
CSN EN 10 036-1993 Chemical analysis of ferrous materials. Determination of total carbon in steels and irons. Gravimetric method after combustion in a stream of oxygen

RO-ASRO, Total nitrogen content in water quality

STAS 5951-1983 VEGETABLES AND FrUJIT PHODLCTS Dctcrmination of net mass, total vegetable or fruit content and of single component content as against net mass
STAS 12200-1985 SLUDGES RESULTED FROM= SURFACE WATERS TREATMENT AND WASTE WATERS PURIFI- CATION Nitrogen content determination

ES-AENOR, Total nitrogen content in water quality

UNE 59-018-1986
UNE 80-217-1991 Methods of testing cement. Determination of the chloride, carbon dioxide and alcali content of cement
UNE 59-013-1986

Lithuanian Standards Office , Total nitrogen content in water quality

LST EN ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (ISO 16948:2015)
LST ISO 9696:2008 Water quality - Measurement of gross alpha activity in non-saline water - Thick source method (ISO 9696:2007, identical)
LST ISO 9697:2009 Water quality - Measurement of gross beta activity in non-saline water - Thick source method (ISO 9697:2008, identical)

AT-ON, Total nitrogen content in water quality

ONORM S 7009-1982 Testing of leather; determination of the contents of total nitrogen and of ammonium salts; calculation of hide substance
ONORM DIN 10334-1994 Determination of nitrogen content of milk according to Kjeldahl and calculation of crude protein content
ONORM DIN 10322-1993 Determination of water content, solids-not-fat and fat contents of butter on the same test portion - Reference method

ZA-SANS, Total nitrogen content in water quality

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 5849:2008 Total water-soluble salts content of fines in aggregates
SANS 5849:2002 Total water-soluble salts content of fines in aggregates
SANS 5250:2006 Water-soluble matter content of textiles
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 6036:2005 Total solids content (non-volatile matter) of wood adhesives
SANS 5619:2001 Determination of water-soluble matter content in leather
SANS 5686:2007 Pesticides - Aromatic plus heterocyclic fraction content and naphthenic plus paraffinic fraction content of insecticidal petroleum base oils
SANS 5190:2004 Water insoluble matter content of soap products
SANS 5965:2006 Non-fibrous material content of textiles (alkali hydrolysis method)
SANS 5291:1987 Oxidizable matter in water for injections, limit test
SANS 10359-2:2005 Water quality - Determination of fluoride Part 2: Determination of inorganically bound total fluoride after digestion and distillation
SANS 14403:2002 Water quality - Determination of total cyanide and free cyanide by continuous flow analysis

American Society for Testing and Materials (ASTM), Total nitrogen content in water quality

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 E258-67(2002) Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
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 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 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 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 D5176-08(2015) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D7649-10 Standard Test Method for Determination of Trace Carbon Dioxide, Argon, Nitrogen, Oxygen and Water in Hydrogen Fuel by Jet Pulse Injection and Gas Chromatography/Mass Spectrometer Analysis
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 D5453-03 Standard Test Method for Determination of Total Sulfur in Light Hydrocarbons, Motor Fuels and Oils by Ultraviolet Fluorescence
ASTM D5453-03a Standard Test Method for Determination of Total Sulfur in Light Hydrocarbons, Motor Fuels and Oils by Ultraviolet Fluorescence

Japanese Industrial Standards Committee (JISC), Total nitrogen content in water quality

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

Professional Standard - Petrochemical Industry, Total nitrogen content in water quality

SH/T 0253-1992 Determination of total sulfur content in light petroleum products (electrical method)
SH/T 0246-1992 Determination of Water Content in Light Petroleum Products (Electrometry)

Professional Standard - Energy, Total nitrogen content in water quality

NB/SH/T 0253-2021 Coulometry for Determination of Total Sulfur Content in Light Petroleum Products

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

GB/T 39144-2020 Test method for magnesium content in gallium nitride materials—Secondary ion mass spectrometry
GB/T 41153-2021 Determination of boron, aluminum and nitrogen impurity content in silicon carbide single crystal—Secondary ion mass spectrometry

KE-KEBS, Total nitrogen content in water quality

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

AR-IRAM, Total nitrogen content in water quality

IRAM 15 702-1963

Professional Standard - Chemical Industry, Total nitrogen content in water quality

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

农业农村部, Total nitrogen content in water quality

NY/T 3030-2016 Determination of total water-soluble sugar content in cotton by anthrone colorimetric method
NY/T 3290-2018 Determination of phenolic acid content in fruits, vegetables and their products using liquid mass spectrometry

BELST, Total nitrogen content in water quality

STB 17.13.05-49-2021 Еnvironmental pгоtесtion аnd nature use. Sampling and measurements, monitoring. Water quality. Determination of the mass concentration of nitrogen-containing substances using photometric tests

Professional Standard-Ships, Total nitrogen content in water quality

CB 3328.5-1988 Inspection method for water quality of discharge water from ship sewage treatment——Examination method for oil content in water
CB* 3328.5-1988 Method for inspecting quality of water discharged from treatment of vessel sewage. Method of test for oil content in water
CB/T 3328.5-2013 Test method for waste water quality of ship sewage treatment.Part5: Oil content in water

Standard Association of Australia （SAA）, Total nitrogen content in water quality

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 2434.1:1999 Methods for the analysis and testing of lower rank coal and its chars - Determination of the total moisture content of lower rank coal

Guangxi Provincial Standard of the People's Republic of China, Total nitrogen content in water quality

DB45/T 1545-2017 Rapid determination of cadmium, lead, copper and arsenic in water quality by anodic stripping voltammetry

PT-IPQ, Total nitrogen content in water quality

E 250-1971

Jilin Provincial Standard of the People's Republic of China, Total nitrogen content in water quality

DB22/T 3427-2023 Volumetric and spectrophotometric methods for the determination of cyanide in thiocyanate-containing wastewater
DB22/T 2564-2016 Determination of seven kinds of organic pollutants in drinking water and source water by liquid chromatography-mass spectrometry

Hunan Provincial Standard of the People's Republic of China, Total nitrogen content in water quality

DB43/T 2196-2021 Determination of Methcathinone Content in Water Environment by Liquid Chromatography-Tandem Mass Spectrometry

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会, Total nitrogen content in water quality

GB/T 34100-2017 Test method for determination of total sulfur in light hydrocarbons，spark ignition engine fuel ,diesel engine fuel, and engine oil—Ultraviolet fluorescence method

Taiwan Provincial Standard of the People's Republic of China, Total nitrogen content in water quality

CNS 14505-2001 Method of test for total sulfur in light hydrocarbons,motor fuels and oils by ultraviolet fluorescence