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How to measure nitrogen content in water

How to measure nitrogen content in water, Total:499 items.

In the international standard classification, How to measure nitrogen content in water involves: Analytical chemistry, Aircraft and space vehicles in general, Construction materials, Fertilizers, Soil quality. Pedology, Fuels, Non-ferrous metals, Water quality, Ferrous metals, Ferroalloys, Protection against fire, Beverages, Air quality, Leather technology, Organic chemicals, Tobacco, tobacco products and related equipment, Milk and milk products, Products of the chemical industry, Test conditions and procedures in general, Farming and forestry, Crude petroleum, Testing of metals, Coals, Petroleum products in general, Meat, meat products and other animal produce, Plastics, Animal feeding stuffs, Metalliferous minerals, Non-metalliferous minerals, Radiation protection, Radiation measurements, Raw materials for rubber and plastics, Waxes, bituminous materials and other petroleum products, Fruits. Vegetables, Natural gas, Structures of buildings, Spices and condiments. Food additives, Burners. Boilers, Measurement of volume, mass, density, viscosity, Pulps, Paper and board, Wood, sawlogs and sawn timber, Nuclear energy engineering, Physics. Chemistry, Paints and varnishes, Textile fibres, Inorganic chemicals, Items of art and handicrafts, Paint ingredients, Lubricants, industrial oils and related products, Insulating materials, Insulating fluids, Microbiology, Materials for the reinforcement of composites.

Korean Agency for Technology and Standards (KATS), How to measure nitrogen content in water

KS I 2208-2008(2013) Methods for determination of carbon dioxide in air
KS W 2013-1977(2010) Methods of weighing and determination of center of gravity location for aircraft
KS F 2229-2009(2014) Measuring method for the chloride ion content of polystyrene composite wood wool cement boards
KS D 1811-2003 Methods for determination of nitrogen in iron and steel
KS F 2234-2004(2014) Measuring method for the mass per unit volume(density) and the mass per unit of surface area of polystyrene composite wood wool cement boards
KS D ISO 4945-2002(2017) Steel－Determination of nitrogen content－Spectrophotometric method
KS M ISO 5397-2002(2017) Leather－Determination of nitrogen content and “hide substance”－Titrimetric method
KS D ISO 10720:2003 Steel and iron-Determination of nitrogen content-Thermal conductimetric method after fusion in a current of inert gas
KS I ISO 9696:2007 Water quality－Measurement of gross alpha activity in non-saline water－Thick source method
KS M ISO 1657-2012(2017) Rubber, raw and rubber latex－Determination of iron content－1,10-Phenanthroline photometric method
KS D ISO 10700-2008(2018) Steel and iron－Determination of manganese content－Flame atomic absorption spectrometric method
KS I ISO 10573-2005(2020) Soil quality－Determination of water content in the unsaturated zone(Neutron depth probe 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 E ISO 5068-2:2018 Brown coals and lignites — Determination of moisture content — Part 2: Indirect gravimetric method for moisture in the analysis sample
KS M ISO 15320:2004 Pulp, paper and board-Determination of pentachlorophenol in an aqueous extract
KS I ISO 10573:2005 Soil quality-Determination of water content in the unsaturated zone(Neutron depth probe method)

FI-SFS, How to measure 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 5183-1986
SFS 3027 E-1976 In the event of any differences in interpretation of this standard the Finnish version shall take precedence over this translation.

CZ-CSN, How to measure nitrogen content in water

CSN 65 4814-1976 Determinaíion of nitrogen oontent in fertilizers
CSN 50 0393-1986 Determination of the content of or- ganic nitrogen in páper and paper- board
CSN 44 1384-1978 Determination of total moisture content in coke
CSN EN 10 179-1993 Chemical analysis of ferrous metals — Determination of nitrogen (trace amounts) in steels — Spectrophotometric method
CSN 83 0540 Cast.13-1984 Chemical and physical analysis of waste water Determination of organic and total nitrogen
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 46 7092-29-1998 Testing methods for feeding stuffs - Part 29: Determination of amonia content in the fish meals
CSN 44 1583 Cast.3-1972 Chemical analysis of bauxite Determination of moisture content
CSN 49 0103-1979 Wood. Determination of moisture content at physical and mechanical testing

RO-ASRO, How to measure nitrogen content in water

SR ISO 4176:1981 Fertilizers. Determination of nitrate nitrogen content. Nitrogen gravimetric method
STAS 8972/4-1982 Hydrometry WATER HOW MEASUREMENT IN THE FREE LEVEL FLOW SYSTEMS Method of stage discharge relation (rating curve)
STAS 12200-1985 SLUDGES RESULTED FROM= SURFACE WATERS TREATMENT AND WASTE WATERS PURIFI- CATION Nitrogen content determination
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 SR 12303-1997 Water - Determination of caesium 137 content
STAS 12031-1984 WATER Radon 222 content determination
STAS 9065/7-1974 MEAT AND MEAT PRODUCTS Determination of easyly hydrolisable nitrogen content
STAS 6536-1987 DRINKING WATER Determination of dissolved oxygen content in water
STAS 7725-1967
STAS 6508-1973 FISH AND FISH PRODUCTS Determination o? water content
STAS SR EN 10179-1994 Chemicat analysis of ferrous materials - Determination of nitrogen (trace amounts) in steel - Spectrophotometric method
STAS 1314/9-1975 MANGANESE ORES AND CONCENTRATES Determination ot moisture content at delivery
STAS SR EN 196-21-1989 Methods of testing cement - Determination of the chloride, carbon dioxide and alkali content of cement

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, How to measure nitrogen content in water

GB/T 3597-2002 Fertilizer--Determination of nitrate nitrogen content--Nitron gravimetric method
GB/T 24583.3-2009 Vanadium-Nitrogen alloy.Determination of nitrogen content.The distillation-neutralization titration method
GB/T 3600-2000 Fertilizers-Determination of ammoniacal nitrogen content-Formaldehyde method
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 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 14605-1993 Determination of trace argon, nitrogen and krypton inoxygen. Gas chromatographic method
GB/T 3598-1983 Fertilizers--Determination of urea nitrogen content--Urease method
GB/T 17767.1-1999 Determination of total nitrogen content for organic-inorganic compound fertilizers
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 17674-1999 Determination of nitrogen in petroleum and petroleum products by chemiluminescence method
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 12152-2007 Water for boiler and cooling system.Determination of mineral oil
GB/T 5687.2-2007 Ferrochromium,silicochromium and nitrogen-bearing Ferrochromium-Determination of silicon content-The perchloric acid dehydration gravimetric method
GB/T 7717.7-1994 Acrylonitrile for industrial use-Determination of content of water
GB 9018.10-1988 Celestite ores--Determination of hygroscopic moisture content--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 42274-2022 Determination of the content and distribution of trace elements (magnesium, gallium) in aluminum nitride materials—Secondary ion mass spectrometry
GB/T 6284-1986 Chemical products for industrial use--General method for determination of water content--Gravimetric method
GB/T 27896-2011 Test method for water vapor content of natural gas using.Electronic moisture analyzers
GB/T 42276-2022 Determination of fluorine ion and chloride ion in silicon nitride powder—Ion chromatography method
GB 9018.6-1988 Celestite ores--Determination of silicon content--Perchloric acid dehydration gravimetric 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 2366-2008 Determination of water content in industrial chemicals.Gas chromatographic method
GB/T 10514-1989 The determination of water content for nitrophosphate--Oven method
GB/T 10514-2012 Determination of free water for nitrophosphate.Oven method
GB 10514-1989 The determination of water content for nitrophosphate—Oven 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 4581.3-1984 Alunite ores--Determination of hygroscopic moisture content in analytical samples--Gravimetric method
GB/T 12492-1990 Determination of cystine content of wool hydrolysates by colorimetry
GB/T 2366-1986 Chemical products for industrial use--Determination of water content--Gas chromatographic 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 8858-1988 Method for determination of dry matter and moisture content in fruit and vegetable products
GB/T 14640-2008 Water used in industrial circulating cooling system and boiler.Determination of potassium and sodium
GB/T 8858-1988 Method for determination of dry matter and water content in fruit and vegetable products
GB/T 8577-2002 Determination of free water for compound fertilizers-Karl Fischer method
GB/T 8576-2002 Determination of free water for compound fertilizers--Vacuum oven method
GB/T 10513-1989 The determination of water content for nitrophosphate--Karl Fischer method
GB/T 6435-2006 Determination of moisture and other volatile mater content in feeds
GB/T 8576-2010 Determination of free water for compound fertilizers.Vacuum oven method
GB/T 8577-2010 Determination of free water for compound fertilizers.Karl Fischer method
GB/T 10513-2012 Determination of free water for nitrophosphate.Karl fischer method
GB/T 18619.1-2002 Natural gas-Determination of water by the karl fischer method-Coulometric procedure
GB/T 13176.2-1991 Determination of moisture and volatile matter contentin washing powders—Oven 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 2947-2002 Determination of free water in urea and ammonium nitrate by karl fischer method

Professional Standard - Agriculture, How to measure nitrogen content in water

GB 3597-1983 Determination of nitrate nitrogen content in fertilizers Nitrogen reagent gravimetric method
NY/T 1977-2010 Water-suluble fertilizers-Determination of total nitrogen, phosphorus and potassium content
GB 3598-1983 Determination of Urea Nitrogen Content in Fertilizers Urease Method
GB/T 42955-2023 Determination of total nitrogen content in fertilizers Dumas combustion method
GB 3595-1983 Determination of ammonia nitrogen content in fertilizers Titration method after distillation
NY/T 1116-2006 Fertilizers-Determination of nitrate nitrogen content.UItraviolet spectro-photometric method
GB 10511-1989 Determination of total nitrogen content in nitrophosphate fertilizers Titration after distillation
NY/T 2012-2011 Determination of free phenolic acid in fruits and derived products
NY/T 2011-2011 Determination of limonin in citrus fruits and derived products
NY/T 2010-2011 Determination of total flavonoids in citrus fruits and derived products
NY/T 2013-2011 Determination of essential oil in citrus fruits and derived products
GB 7458-1987 Determination of Moisture and Volatile Content in Soap Oven Method
GB 10513-1989 Determination of free water content in nitrophosphate fertilizer Karl Fischer method
NY/T 2016-2011 Determination of pectin content in fruit and derived product.Spectrophotometry method

Indonesia Standards, How to measure 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 06-6989.14-2004 Water and waste water - Part 14: Test methods of dissolved oxygen by iodometry (azide modification)
SNI 06-6875-2002 Test methods of sulphides content in water by iodometry
SNI 13-6793-2002 Test methods for moisture, ash, and organic matter of peat and other organic soils
SNI 7969-2014
SNI 06-4822-1998 Test methods for manganese content in water by spectrophotometer in persulphate manner
SNI 06-6876-2002 Test methods of ammonia content in water by ion selective electrode

Japanese Industrial Standards Committee (JISC), How to measure 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 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 M 8820 ERRATUM 1:2001 Coal and coke -- Determination of total moisture content of a lot (Erratum 1)
JIS M 8231:1982 Methods for determination of combined water in manganese ores
JIS D 1030:1998 Automobiles -- Analytical procedure for measurement of carbon monoxide, carbon dioxide, total hydrocarbons and oxides of nitrogen in exhaust gas
JIS G 2403:2003 Methods for sampling, preparation and determination of moisture content of aluminium dross

European Committee for Standardization (CEN), How to measure nitrogen content in water

EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
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)
FprCEN/TS 17762-2021 Inorganic fertilizers - Determination of the copper content in ammonium nitrate fertilizers of high nitrogen content
EN ISO 960:1997 Plastics - Polyamides (PA) - Determination of Water Content ISO 960:1988
FprCEN/TS 17761-2021 Inorganic fertilizers - Determination of the chloride content in ammonium nitrate fertilizers of high nitrogen content
EN ISO 10720:2007 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas
EN 10179:1989 Chemical Analysis of Ferrous Materials - Determination of Nitrogen (Trace Mounts) in Steel Spectrophotometric 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 16682:2017 Conservation of cultural heritage - Methods of measurement of moisture content@ or water content@ in materials constituting immovable cultural heritage
EN 933-7:1998 Tests for geometrical properties of aggregates - Part 7: Determination of shell content - Percentage of shells in coarse aggregates
CEN ISO/TS 17234:2003 Leather - Chemical tests - Determination of certain azo colourants in dyed leathers ISO/TS 17234:2003
EN 196-21:1989 Methods of testing cement; determination of the chloride, carbon dioxide and alkali content of cement
EN ISO 15216-1:2017/A1:2021 Microbiology of the food chain - Horizontal method for determination of hepatitis A virus and norovirus using real-time RT-PCR - Part 1: Method for quantification - Amendment 1 (ISO 15216-1:2017/Amd 1:2021)

Association Francaise de Normalisation, How to measure nitrogen content in water

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 U42-416*NF EN 15478:2009 Fertilizers - Determination of total nitrogen in urea.
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 X43-009:1973 Nitrogen dioxyde content of the atmosphere (griess saltzman reaction).
XP U42-794*XP CEN/TS 17762:2022 Inorganic fertilizers - Determination of the copper content in ammonium nitrate fertilizers of high nitrogen content
NF U42-146*NF EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free.
NF V04-407:2002 Meat, meat product and fishery products - Determination of nitrogen content and calculation of the protein content - Kjeldahl method.
NF X34-117:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods.
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
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 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 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 A06-380*NF EN ISO 10720:2007 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas
NF X80-029*NF EN 16682:2017 Conservation of cultural heritage - Methods of measurement of moisture content, or water content, in materials constituting immovable cultural heritage
NF M07-104:2000 Émulsions eau dans gazole - Détermination de la teneur en eau - Méthode de Karl Fischer
NF X31-500*NF ISO 10573:1996 Soil quality. Determination of water content of the unsaturated zone. Neutron depth probe method.
NF P15-471-10:2009 Methods of testing cement - Part 10 : determination of the water-soluble chromium (VI) content of cement.
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 Q03-097*NF EN ISO 15320:2011 Pulp, paper and board - Determination of pentachlorophenol in an aqueous extract.
NF X31-115:2001 Soil quality - Sampling and storage of soil samples in view of determination of mineral nitrogen on fresh soil.
NF EN 196-10:2017 Méthodes d'essais des ciments - Partie 10 : détermination de la teneur en chrome (VI) soluble dans l'eau des ciments
NF C27-229:1985 Determination of water in insulating oils, and in oil-impregnated paper and pressboard.
NF P15-471-10*NF EN 196-10:2017 Methods of testing cement - Part 10 : determination of the water-soluble chromium (VI) content of cement
NF V18-111:2011 Animal feeding stuffs - Determination of water-insoluble vegetable cell walls content

SE-SIS, How to measure 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 19-1974 Determination of calcium content of water
SIS 02 81 20-1974 Determination of chloride 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 26-1974 Determination of orthophosphate content of water
SIS SS 02 81 21-1983 Determination of the sum of calcium and magnesium in water -Titrimetric method
SIS 02 81 27-1974 Determ i nation of total phosphorous content of water
SIS SS 02 81 98-1989 Determination of sulfate content of water — Nephelometric method
SIS 02 81 12-1973 Environmental test methods. Determination of suspended maner content of water

AR-IRAM, How to measure nitrogen content in water

TN-INNORPI, How to measure nitrogen content in water

NT 14.33-1983

RU-GOST R, How to measure 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 EN 15561-2013 Fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates
GOST 30181.6-1994 Mineral fertilizers. Method for determination of mass fraction of nitrogen in ammonium salts (in ammonium form, using the formaldehyde method)
GOST EN 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 30181.8-1994 Mineral fertilizers. Method for determination of mass fraction of ammonium nitrogen in compound fertilizers (chloramine method)
GOST 30181.7-1994 Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers (in ammonium and amide forms, using hypochlorite method)
GOST 1594-1969 Apparatus for quantitative determination of water content in petroleum, food and other products. Specifications
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 21119.2-1975 General methods of test for pigments and extenders. Determination of soluble in water matters mass fraction
GOST 14618.6-1978 Essential oils, aromatics and their intermediates. Determination of water content
GOST 21138.2-1985 Chalk. Method for determination of sulphate ions content in water extract
GOST R 57964-2017 Hollow glass microspheres. Method for determination of moisture and coupling agent content
GOST R 51973-2002 Cigarettes. Determination of water content in smoke condensate. Gas-chromatographic method
GOST 29238-1991 Ammonium nitrate for industrial use. Determination of matter insoluble in water content. Gravimetric method

工业和信息化部, How to measure 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 4582.8-2017 Determination of silicon content in ferrosilicon nitride perchloric 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
HG/T 6072-2022 Determination of thiocyanate content in coking wastewater
HG/T 5375-2018 Determination of acrylamide content in water-based adhesives
YS/T 1539-2022 Determination of boron nitride content in aluminum-based boron nitride powder by inductively coupled plasma atomic emission spectrometry

VN-TCVN, How to measure nitrogen content in water

TCVN 3706-1990 Aquatic products.Method for the determination of nitrogen ammonia content
TCVN 3707-1990 Aquatic products.Method for the determination of amine ammonia nitrogen content
TCVN 3708-1990 Aquatic products.Method for the determination of nitrogen amino acid content
TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 1666-2007 Iron ores.Determination of moisture content of a lot
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 4846-1989 Determination of moisture content (on milled grains and on whole grains)
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 6654-2000 Soil quality.Determination of water content in the unsaturated zone.Neutron depth probe method

Professional Standard - Commodity Inspection, How to measure nitrogen content in water

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 3097-2012 Determination of total nitrogen in fertelezers.Combustion
SN/T 3382-2012 Determination of non-protein-nitrogen content in milk and dairy products for export
SN/T 3005-2011 Test method for instrumental determination of carbon,hydrogen,nitrogen and sulfur in organic chemicals
SN/T 3606-2013 Determination of water and sediment in middle distillate fuels.Centrifuge method

Shandong Provincial Standard of the People's Republic of China, How to measure nitrogen content in water

DB37/T 2735-2015 Determination of ammonium sulfate content in dry powder fire extinguishing agent Total nitrogen content method
DB37/T 2618-2014 Determination of Selenium Content in Microelement Water-Soluble Fertilizer
DB37/T 343-2003 Determination method of phosphate content in cod and other aquatic products

Danish Standards Foundation, How to measure nitrogen content in water

DS/EN 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
DS/EN ISO 10720:2007 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas
DS/ISO 10573:1997 Soil quality - Determination of water content in the unsaturated zone - Neutron depth probe method
DS/EN ISO 15351:2010 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method)
DS/EN 933-7:1998 Tests for geometrical properties of aggregates - Part 7: Determination of shell content - Percentage of shells in coarse aggregates
DS/EN ISO 20764:2004 Petroleum and related products - Preparation of a test portion of high-boiling liquids for the determination of water content - Nitrogen purge method

Lithuanian Standards Office , How to measure nitrogen content in water

LST EN 12135-2001 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
LST EN ISO 10720:2007 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (ISO 10720:1997)
LST EN 933-7-2002 Tests for geometrical properties of aggregates - Part 7: Determination of shell content - Percentage of shells in coarse aggregates

AENOR, How to measure nitrogen content in water

UNE-EN 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
UNE 40209:1973 METHOD OF COLOURIMETRIC DETERMINATION OF THE CONTENT IN "CISTINE + CISTEINE" WOOL HIDROLIZATED.
UNE-EN ISO 10720:2008 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (ISO 10720:1997)
UNE-EN 933-7:1999 TESTS FOR GEOMETRICAL PROPERTIES OF AGGREGATES. PART 7: DETERMINATION OF SHELL CONTENT. PERCENTAGE OF SHELLS IN COARSE AGGREGATES.
UNE 80602:2011 Determination of biomass fraction in waste tires used as alternative fuel in cement plants

German Institute for Standardization, How to measure nitrogen content in water

DIN EN 12135:1997-12 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method; German version EN 12135:1997
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 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 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 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 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 CEN/TS 15560:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German version CEN/TS 15560:2007
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 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 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
DIN EN 16682:2017-05 Conservation of cultural heritage - Methods of measurement of moisture content, or water content, in materials constituting immovable cultural heritage; German version EN 16682:2017
DIN EN ISO 10720:2007 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (ISO 10720:1997); English version of DIN EN ISO 10720:2007-06
DIN V 52049:1998 Testing of bitumen - Determination of water content of bituminous emulsions - Drying test
DIN EN 17864:2022-08 Inorganic fertilizers - Determination of nitrogen content in IBDU (isobutylidenediurea) and CDU (crotonylidenediurea); German and English version prEN 17864:2022 / Note: Date of issue 2022-07-01*Intended as replacement for DIN EN 15705 (2010-07).
DIN EN ISO 15351:2010-08 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method) (ISO 15351:1999); German version EN ISO 15351:2010
DIN EN 196-10:2016-11 Methods of testing cement - Part 10: Determination of the water-soluble chromium (VI) content of cement; German version EN 196-10:2016
DIN EN 933-7:1998-05 Tests for geometrical properties of aggregates - Part 7: Determination of shell content; percentage of shells in coarse aggregates; German version EN 933-7:1998
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

Professional Standard - Ferrous Metallurgy, How to measure nitrogen content in water

YB/T 4530-2016 Nitrogen-bearing ferromanganese.Determination of nitrogen content.The distillation-neutralization titration method
YB/T 4382-2014 Determination of free water in iron ores

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

GB/T 24583.3-2019 Vanadium-nitrogen—Determination of nitrogen content—Distillation-neutralization titration method
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
GB/T 27896-2018 Test method for water vapor content of natural gas—Electronic moisture analyzers
GB/T 41153-2021 Determination of boron, aluminum and nitrogen impurity content in silicon carbide single crystal—Secondary ion mass spectrometry
GB/T 38596-2020 Determination method of heavy metal contents in the wastewater during catalyst production

British Standards Institution (BSI), How to measure nitrogen content in water

DD ENV 12260-1996 Water quality. Determination of nitrogen. Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
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 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 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
PD CEN/TS 17762:2022 Inorganic fertilizers. Determination of the copper content in ammonium nitrate fertilizers of high nitrogen content
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
PD CEN/TS 17761:2022 Inorganic fertilizers. Determination of the chloride content in ammonium nitrate fertilizers of high nitrogen content
BS ISO 9697:2015 Water quality. Gross beta activity in non-saline water. Test method using thick source
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 ISO 5068-2:2007 Brown coals and lignites - Determination of moisture content - Indirect gravimetric method for moisture in the analysis sample
BS EN ISO 10695:2000 Water quality. Determination of selected organic nitrogen and phosphorus compounds. Gas chromatographic methods
BS EN 196-10:2016 Tracked Changes. Methods of testing cement. Determination of the water-soluble chromium (VI) content of cement
BS 7755-5.2:1996 Soil quality. Physical methods. Determination of water content in the unsaturated zone. Neutron depth probe method
BS ISO 24698-2:2018 Rubber, raw. Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber (NBR) - Kjeldahl method
22/30453271 DC BS EN 17864. Inorganic fertilizers. Determination of nitrogen content in IBDU (isobutylidenediurea) and CDU (crotonylidenediurea)

American Society for Testing and Materials (ASTM), How to measure nitrogen content in water

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 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
ASTM D1607-91(2018)e1 Standard Test Method for Nitrogen Dioxide Content of the Atmosphere (Griess-Saltzman Reaction)
ASTM E258-67(2002) Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM C1096-91(2004)e1 Standard Test Method for Determination of Wood Fiber in Asbestos Cement
ASTM D1607-91(2005) Standard Test Method for Nitrogen Dioxide Content of the Atmosphere (Griess-Saltzman Reaction)
ASTM E1019-00 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM E1019-18 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM D3731-87(1998) Standard Practices for Measurement of Chlorophyll Content of Algae in Surface Waters
ASTM D3731-87(2012) Standard Practices for Measurement of Chlorophyll Content of Algae in Surface Waters
ASTM C1603-05 Standard Test Method for Measurement of Solids in Water
ASTM D512-04 Standard Test Methods for Chloride Ion In Water
ASTM D512-10 Standard Test Methods for Chloride Ion In Water
ASTM D512-12 Standard Test Methods for Chloride Ion In Water
ASTM E1019-03 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM E1019-02 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM C1843-16 Standard Test Method for Determining Moisture Content in Uranium-Ore Concentrate
ASTM D3352-03 Standard Test Method for Strontium Ion in Brackish Water, Seawater, and Brines
ASTM D3352-03e1 Standard Test Method for Strontium Ion in Brackish Water, Seawater, and Brines
ASTM C563-96 Standard Test Method for Optimum SO3 in Hydraulic Cement Using 24-h Compressive Strength
ASTM C563-16 Standard Guide for Approximation of Optimum SO3 in Hydraulic Cement Using Compressive Strength
ASTM E258-07 Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM D2791-07 Standard Test Method for On-line Determination of Sodium in Water
ASTM F1779-97(2003) Standard Practice for Reporting Visual Observations of Oil on Water
ASTM F1779-97 Standard Practice for Reporting Visual Observations of Oil on Water
ASTM F1779-08 Standard Practice for Reporting Visual Observations of Oil on Water
ASTM F1779-08(2014) Standard Practice for Reporting Visual Observations of Oil on Water
ASTM D8010-18 Standard Test Method for Determination of Water Soluble Alkali Content in Coal
ASTM D8010-16 Standard Practice for Determination of Water Soluble Alkali Content in Coal
ASTM D3608-95(2005) Standard Test Method for Nitrogen Oxides (Combined) Content in the Atmosphere by the Griess-Saltzman Reaction
ASTM D3608-95(2000)e1 Standard Test Method for Nitrogen Oxides (Combined) Content in the Atmosphere by the Griess-Saltzman Reaction
ASTM D3608-95(2011) Standard Test Method for Nitrogen Oxides (Combined) Content in the Atmosphere by the Griess-Saltzman Reaction
ASTM D3608-19 Standard Test Method for Nitrogen Oxides (Combined) Content in the Atmosphere by the Griess-Saltzman Reaction
ASTM D5982-15 Standard Test Method for Determining Cement Content of Fresh Soil-Cement (Heat of Neutralization Method)
ASTM D5376-93(2002) Standard Test Method for Rubber Chemicals8212;Determination of the Percent Nitrogen in Rubber Antioxidant : Polymerized TMQ
ASTM D5376-93(1998) Standard Test Method for Rubber Chemicals-Determination of the Percent Nitrogen in Rubber Antioxidant Polymerized TMQ
ASTM D5291-02(2007) Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5291-02 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5982-07 Standard Test Method for Determining Cement Content of Fresh Soil-Cement (Heat of Neutralization Method)
ASTM D3228-08(2014) Standard Test Method for Total Nitrogen in Lubricating Oils and Fuel Oils by Modified Kjeldahl Method
ASTM E1937-97 Standard Test Method for Determination of Nitrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique
ASTM D4643-00 Standard Test Method for Determination of Water (Moisture) Content of Soil by the Microwave Oven Method
ASTM C1096-91(1999) Standard Test Method for Determination of Wood Fiber in Asbestos Cement
ASTM C1096-91(2004) Standard Test Method for Determination of Wood Fiber in Asbestos Cement
ASTM D4006-07 Standard Test Method for Water in Crude Oil by Distillation
ASTM D4643-08 Standard Test Method for Determination of Water (Moisture) Content of Soil by Microwave Oven Heating
ASTM C1096/C1096M-07(2011)e1 Standard Test Method for Determination of Wood Fiber in Asbestos Cement

ES-UNE, How to measure nitrogen content in water

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.)
UNE-EN 16682:2018 Conservation of cultural heritage - Methods of measurement of moisture content, or water content, in materials constituting immovable cultural heritage
UNE 103202:2019 Qualitative determination of soluble sulphates (in water) content in a soil.
UNE-EN 196-10:2016 Methods of testing cement - Part 10: Determination of the water-soluble chromium (VI) content of cement

HU-MSZT, How to measure nitrogen content in water

PT-IPQ, How to measure nitrogen content in water

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
NP 1359-1976
NP 1274-1976
NP 1314-1976
E 209-1967

BE-NBN, How to measure nitrogen content in water

NBN V 21-013-1978 Determination of the total nitrogen contaimng substances content of milk - Amido black method
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
NBN-EN 10179-1992 Chemical analysis of ferrous materials. Determination of nitrogen (trace amounts) in steels. Spectrophotometric method
NBN V 01-001-1973 Tobacco and tobacco products — Determination of water in tobacco

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, How to measure nitrogen content in water

GB/T 34532-2017 Coking wastewater—Determination of ammonia nitrogen content—Formaldehyde method
GB/T 35924-2018 Determination of moisture in solid chemical products－Thermogravimetry method
GB/T 14640-2017 Determination of potassium and sodium in water for industrial circulating cooling system and boiler
GB/T 34683-2017 Determination of formaldehyde content in water-borne coatings—High performance liquid chromatographic method

AT-ON, How to measure nitrogen content in water

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
ONORM DIN 10322-1993 Determination of water content, solids-not-fat and fat contents of butter on the same test portion - Reference method

CEN - European Committee for Standardization, How to measure nitrogen content in water

EN ISO 8968-4:2001 Milk - Determination of Nitrogen Content - Part 4: Determination of Non-Protein Nitrogen Content

ES-AENOR, How to measure 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 55-515-1991 Surface active agents and soaps. Determination of water content. Azeotropic distillation method
UNE 59-013-1986
UNE 55-902-1985
UNE 57-005-1990
UNE 104-281 Pt.1-8-1990

Group Standards of the People's Republic of China, How to measure nitrogen content in water

T/GDASE 0009-2020 Determination of the content of carbon, hydrogen, oxygen, nitrogen and sulfur in graphene
T/GXAS 477-2023 Determination of total nitrogen content in sugarcane juice —sulphuric acid titrimetric method
T/SXCIES 002-2020 Crude benzol- Determination of moisture content
T/NXCL 023-2023 Determination of hydrogen and nitrogen in Beryllium— Inert gas fusion infrared absorption/ thermal conductivity method
T/NAIA 028-2021 Determination of water-soluble humic acid content in organic fertilizers - volumetric method
T/SDAQI 061-2021 Determination of Phosphite in Water-soluble Fertilizer
T/SDAQI 064-2021 Determination of urea content in diesel engines NOx reduction agent - Aqueous urea solution by refractive index
T/NAIA 014-2020 Determination of Moisture Content in Methanol by Gas Chromatography
T/BSM 0001-2023 Determination of hydrogen content in hydrogen water Headspace gas chromatographic method
T/NAIA 0139-2022 Diesel engine nitrogen oxide reducing agent urea aqueous solution (AUS 32) Determination of urea content Automatic Kjeldahl method
T/CCAS 008-2019 Analytical methods of the ammonia in fly ash for cement and concrete

YU-JUS, How to measure nitrogen content in water

JUS E.L8.005-1980 Method of determination ofwather content in caces
JUS H.G8.298-1987 Reagents. Oxaiic acid dihydrate. Determination of total nitrogen content. Colorimetric metbod
JUS H.G8.262-1987 Reagents. Barium chlorlde dihydrate. Determination od heavy metals content (as Pb). Colorimetric 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
JUS H.G8.158-1984 Reagents. Sodium carbonate anhydrous and sodium carbonate decahydrate. Determination of total ni-trogen contont. Colorimetric method
JUS H.G8.401-1989 Reagents. Calcium nitrate tetrahvdrate. Detemination of substances not precipitated by aiumonium oxalate (as sulphate) . Gravimetric nethod

ZA-SANS, How to measure nitrogen content in water

SANS 377:2005 Standard test methods for selenium in water
SANS 5619:2001 Determination of water-soluble matter content in leather
SANS 6297:2006 Lime tests - Free water content of slaked lime
SANS 5968:1987 Nitrates in water for injections, limit test
SANS 5620:1972 Determination of sulphated ash content of water-solubles in leather
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

Anhui Provincial Standard of the People's Republic of China, How to measure 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
DB34/T 1331-2011 Interior architectural coatings-Determination of water Karl•fischer method

PL-PKN, How to measure nitrogen content in water

PN C04593-1971 Water and waste water Determination of formaldehyde content
PN C04288-12-1987 Technical fats Methods of testing Determination of water content
PN C04587 ArkusZ02-1973 Water and waste water Tests for sodium Determination of sodium by titrimetric 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
PN C04596-02-1990 Water and waste water Tests for zinc Determination of zinc by zincon method
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 C04587 ArkusZ01-1973 Water and waste water Tests for sodium Determination of sodium by fla- me photometric method
PN C04591 ArkusZ01-1974 Water and waste water Tests for potassium Determination of potassium by flame photometric method
PN C87070-03-1992 Fertilizers Test of arsenie, cadmium, lead and mercury in nitrogenous and phosphatic fertilizers Determination of arsenie
PN C87070-04-1992 Fertilizers Tests of arsenie, cadmium, lead and mercury in nitrogenous and phosphatic fertilizers Determination of cadmium
PN C87070-05-1992 Fertilizers Tests of arsenie, cadmium, lead and mercury in nitrogenous and phosphatic fertilizers Determination of lead
PN C87070-06-1992 Fertilizers Tests of arsenie, cadmium, lead and mercury in nitrogenous and phosphatic fertilizers Determination of mercury
PN C04087-1989 Crude petroleum and petroleum products Determination contens of water and sediment by the centrifuge method
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

国家质量监督检验检疫总局, How to measure nitrogen content in water

SN/T 4764-2017 Elemental analyzer method for determination of carbon, hydrogen, nitrogen and sulfur content in coal
SN/T 4435-2016 Determination of water content in crude oil by hydride reaction method

NL-NEN, How to measure nitrogen content in water

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 6494-1984 Water - Enzymatic determination of urea content in swimming water
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

Henan Provincial Standard of the People's Republic of China, How to measure nitrogen content in water

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

国家能源局, How to measure nitrogen content in water

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

NO-SN, How to measure nitrogen content in water

NS 4865-1983 Air quality - Determination of the sum of nitrite- and nitrate-nitrogen in precipitation
NS 4762-1988 Water analysis - Determination of sulphate content of water - Nephelometric method

Professional Standard - Energy, How to measure nitrogen content in water

NB/SH/T 0162-2021 Color indicator method for determination of basic nitrogen content in petroleum distillates

Professional Standard - Aviation, How to measure nitrogen content in water

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

International Organization for Standardization (ISO), How to measure nitrogen content in water

ISO/R 960:1969 Plastics — Determination of the water content in polyamides
ISO 960:1988 Plastics; polyamides (PA); determination of water content
ISO/DTS 17234:2002 Leather - Chemical tests - Determination of certain azo colourants in dyded leathers
ISO 9696:2007 Water quality - Measurement of gross alpha activity in non-saline water - Thick source method
ISO 10573:1995 Soil-quality - Determination of water content in the unsaturated zone - Neutron depth probe method
ISO/CD 7383-2:2023 Fine bubble technology — Evaluation method for determining gas content in fine bubble dispersions in water — Part 2: Hydrogen content
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 310:1981 Manganese ores — Determination of hygroscopic moisture content in analytical samples — Gravimetric method
ISO/DIS 7383-1:2023 Fine bubble technology — Evaluation method for determining gas content in ultrafine bubble dispersions in water — Part 1: Oxygen content
ISO/CD 5068-2:1976 Brown coals and lignites — Determination of moisture content — Part 2: Indirect gravimetric method for moisture in the analysis sample
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/FDIS 14897 Plastics — Polyols for use in the production of polyurethanes — Determination of water content
ISO 15320:2003 Pulp, paper and board - Determination of pentachlorophenol in an aqueous extract
ISO 15320:2011 Pulp, paper and board - Determination of pentachlorophenol in an aqueous extract

International Truck and Engine Corporation (ITEC), How to measure nitrogen content in water

INTERN CEMS BT-38-2009 Test For Water Content In Air Conditioner Refrigerant
INTERN CEMS BT-48-2009 Determination Of Water& Methanol In Windshield Washer Solvent

Professional Standard - Petroleum, How to measure nitrogen content in water

SY/T 7507-1997 Determination of water in natural gas-Electrolytic method

Professional Standard - Chemical Industry, How to measure nitrogen content in water

HG/T 2958.10-1988 Celestite ores-Determination of hygroscopic moisture content-Gravimetric method
HG/T 2957.6-2004 Gravimetric method for determination of combined water content in alunite ore
HG/T 2957.3-2004 Gravimetric method for determination of adsorbed water content in alunite ore
HG/T 4552.1~4552.3-2013 Determination method of tin content in tin stripping wastewater (2013)
HG/T 2958.6-1988 Celestite ores-Determination of silicon content-Perchloric acid dehydration gravimetric method
HG/T 4327-2012 Reclaimed water.Determination of total iron content.Spectrophotometric method
HG/T 2957.3-1984(1997) Alunite ores-Determination of hygroscopic moisture content in analytical samples-Gravimetric method
HG/T 3540-2011 Industrial circulating cooling water.Determination of total phosphate
HG/T 4325-2012 Reclaimed water.Determination of calcium and magnesium.Atomic absorption spectromic method
HG/T 3531-2003 Industrial circulating cooling water-Determination of water for sludge and corrosion products
HG/T 3531-2011 Industrial circulating cooling water. Determination of water for sludge and corrosion products

TR-TSE, How to measure nitrogen content in water

TS 3651-1981 METHODS FOR THE ANALYSIS OF WATER — DETERMINATION OF IRON CONTENT — 1,10 Phenanthroline Spectrophotometry Method

(U.S.) Ford Automotive Standards, How to measure nitrogen content in water

FORD FLTM BO 024-01-2001 DETERMINATION OF MOISTURE CONTENT OF NYLON - MOISTURE METER METHOD
FORD FLTM BO 024-02-2001 DETERMINATION OF MOISTURE CONTENT OF NYLON - VACUUM OVEN METHOD

Professional Standard - Building Materials, How to measure nitrogen content in water

JC/T 668-1997 Test method for calcium sulfate in hydrated cement mortar
JC/T 668-2009 Method for determining residue water-extractable sulfate in cement mortar

Professional Standard - Petrochemical Industry, How to measure nitrogen content in water

NB/SH/T 0704-2010 Standard test method for nitrogen in petroleum and petroleum products by boat-inlet chemiluminescence
NB/SH/T 0207-2010 Standard test method for water in insulating liquids by coulometric Karl Fischer titration
SH/T 1612.4-1995 Determination of water content in purified terephthalic acid for industrial use Karl Fischer volumetric method

Jilin Provincial Standard of the People's Republic of China, How to measure nitrogen content in water

DB22/T 2137-2014 Rapid Determination Method of Moisture Content in Iron Ore Powder

NZ-SNZ, How to measure nitrogen content in water

NZS/AS 1301.457S-1992 Determination of Moisture Content in Paper, Board and Pulps (APPITA)

Guangdong Provincial Standard of the People's Republic of China, How to measure nitrogen content in water

DB4401/T 114-2021 Determination of Hydroxyethylidene Diphosphonic Acid (HEDP) Content in Pot Water

Standard Association of Australia （SAA）, How to measure nitrogen content in water

AS 1289.2.1.1:2005 Methods of testing soils for engineering purposes - Soil moisture content tests - Determination of the moisture content of a soil - Oven drying method (standard method)
AS 1289.2.1.6:2005 Methods of testing soils for engineering purposes - Soil moisture content tests - Determination of the moisture content of a soil - Hotplate drying method
AS 1289.2.1.2:2005 Methods of testing soils for engineering purposes - Soil moisture content tests - Determination of the moisture content of a soil - Sand bath method (subsidiary method)
AS/NZS 1301.010s:2007 Methods of test for pulp and paper - Determination of moisture in wood chips
AS 1289.2.1.5:2005 Methods of testing soils for engineering purposes - Soil moisture content tests - Determination of the moisture content of a soil - Infrared lights method (subsidiary method)
AS 4133.1.1.1:2005 Methods of testing rocks for engineering purposes - Rock moisture content tests - Determination of the moisture content of rock - Oven drying method (standard method)

International Electrotechnical Commission (IEC), How to measure nitrogen content in water

IEC 60733:1982 Determination of water in insulating oils, and in oil-impregnated paper and pressboard
IEC 60814:1985 Determination of water in insulating liquids by automatic coulometric Karl Fischer titration

Professional Standard - Light Industry, How to measure nitrogen content in water

QB/T 3751-1999 Determination of Moisture and Volatile Content in Soap Oven Method

KR-KS, How to measure nitrogen content in water

KS E ISO 5068-2-2018 Brown coals and lignites — Determination of moisture content — Part 2: Indirect gravimetric method for moisture in the analysis sample
KS I ISO 11348-2-2009 Water quality－Determination of the inhibitory effect of water samples on the light emission of vibrio fischeri(Luminescent bacteria test)－Part 2：method using liquid-dried bacteria
KS E ISO 5068-2-2018(2023) Brown coals and lignites — Determination of moisture content — Part 2: Indirect gravimetric method for moisture in the analysis sample

American National Standards Institute （ANSI), How to measure nitrogen content in water

ANSI/ASTM E2694:2011 Test Method for Measurement of Adenosine Triphosphate in Water-Miscible Metalworking Fluids

API - American Petroleum Institute, How to measure nitrogen content in water

API MPMS TR 2570-2010 Continuous On-line Measurement of Water Content in Petroleum (Crude Oil and Condensate) (First Edition)

AASHTO - American Association of State Highway and Transportation Officials, How to measure nitrogen content in water

T144-1992 Standard Method of Test for Cement Content of Soil-Cement Mixture (ASTM D806-89)

IN-BIS, How to measure nitrogen content in water

IS 10034-1981

PH-BPS, How to measure nitrogen content in water

PTS 123-1970 Standardization of the Method of Test for the Determination of Water-soluble Phosphorus Content of Fertilizers

未注明发布机构, How to measure nitrogen content in water

BS EN 1136:1995(1999) Method for Determination of phosphorus content of fruit and vegetable juices : Spectrometric method

农业农村部, How to measure nitrogen content in water

NY/T 3030-2016 Determination of total water-soluble sugar content in cotton by anthrone colorimetric method

TH-TISI, How to measure nitrogen content in water

TIS 15.8-1971 Specification for portland cement.part 8: method of determination of water content in hydraulic cement

The American Road & Transportation Builders Association, How to measure nitrogen content in water

AASHTO T 265-1993 Standard Method of Test for Laboratory Determination of Moisture Content of Soils