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Nitrogen content detection in water

Nitrogen content detection in water, Total:498 items.

In the international standard classification, Nitrogen content detection in water involves: Water quality, Fertilizers, Analytical chemistry, Non-ferrous metals, Soil quality. Pedology, Fuels, Ferrous metals, Ferroalloys, Air quality, Beverages, Leather technology, Protection against fire, Organic chemicals, Construction materials, Petroleum products in general, Tobacco, tobacco products and related equipment, Milk and milk products, Medical sciences and health care facilities in general, Edible oils and fats. Oilseeds, Rubber and plastics products, Cutting tools, Inorganic chemicals, Test conditions and procedures in general, Products of the chemical industry, Farming and forestry, Crude petroleum, Testing of metals, Coals, Paint ingredients, Tea. Coffee. Cocoa, Metalliferous minerals, Ceramics, Shipbuilding and marine structures in general, Animal feeding stuffs, Paints and varnishes, Meat, meat products and other animal produce, Road engineering, Plastics, Natural gas, Conducting materials, Nuclear energy engineering, Fluid power systems, Food products in general, Raw materials for rubber and plastics, General methods of tests and analysis for food products, Textile fibres, Radiation protection, TESTING, Non-metalliferous minerals, Cereals, pulses and derived products, Radiation measurements.

FI-SFS, Nitrogen content detection 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.

HU-MSZT, Nitrogen content detection in water

PL-PKN, Nitrogen content detection in water

PN C04576 ArkusZ14-1973 Water and w?sie water Tes?s for nitrogen Calcula?ion of to?al nitrogen
PN A86026-1990 Milk and dairy products Milk powdcr Determination of nitritc and nitrate contents
PN Z04075-1961 Speedy Me?hod for De?er mina?ion of Ni?rogen Oxyde* in Air
PN C04568-1971 Water and waste water Determination of methyl alcohol content
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 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 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 C04586 ArkusZ05-1973 Water and waste water Tests for iron Determination of total anddissolved iron by EDTA method Rang?: above 10 mg/l

British Standards Institution (BSI), Nitrogen content detection 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 DD CEN/TS 15478:2006 Fertilizers - Determination of total nitrogen in urea
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 EN ISO 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
BS DD CEN/TS 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 15477:2006 Fertilizers - Determination of the water-soluble potassium 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 12799:2015 Nuclear energy. Determination of nitrogen content in UO2, (U,Gd)O2 and (U,Pu)O2 sintered pellets. Inert gas extraction and conductivity detection method
BS ISO 9697:2015 Water quality. Gross beta activity in non-saline water. Test method using thick source
BS EN ISO 10695:2000 Water quality. Determination of selected organic nitrogen and phosphorus compounds. Gas chromatographic 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

RO-ASRO, Nitrogen content detection in water

SR 184-25-1998 Ethyl alcohol. Determination of ammonia and azotic bases nitrogen content
SR ISO 4176:1981 Fertilizers. Determination of nitrate nitrogen content. Nitrogen gravimetric method
STAS 7312-1983 SURFACE AND RESIDUAL WATERS Determination of azote content
STAS 12200-1985 SLUDGES RESULTED FROM= SURFACE WATERS TREATMENT AND WASTE WATERS PURIFI- CATION Nitrogen content determination
STAS 9065/7-1974 MEAT AND MEAT PRODUCTS Determination of easyly hydrolisable nitrogen content
STAS 12303-1985 WATER Determination ol cesium 137 content
STAS 12293-1985 WATER Determination of 3 hydrogen (tritium) content
STAS 12218-1984 WATER Determination of iodine 131 content
STAS SR 12303-1997 Water - Determination of caesium 137 content
STAS 12031-1984 WATER Radon 222 content determination
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

CZ-CSN, Nitrogen content detection 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 67 0541-1974 Determination of volatile matter content in pigments
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 46 7092-29-1998 Testing methods for feeding stuffs - Part 29: Determination of amonia content in the fish meals
CSN EN 10 179-1993 Chemical analysis of ferrous metals — Determination of nitrogen (trace amounts) in steels — Spectrophotometric method
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 44 1583 Cast.3-1972 Chemical analysis of bauxite Determination of moisture content

Korean Agency for Technology and Standards (KATS), Nitrogen content detection in water

KS D 2555-2005 Methods for determination of nitrogen in tantalum
KS D 2530-2007 Methods for determination of nitrogen in titanium and titanium alloys
KS D 1811-2003 Methods for determination of nitrogen in iron and steel
KS D ISO 4945-2002(2017) Steel－Determination of nitrogen content－Spectrophotometric method
KS B 5360-1990 Continuous Analysers for Oxides of Nitrogen in Ambient Air
KS B 5360-2001 Continuous Analysers for Oxides of Nitrogen in Ambient Air
KS M 2112-2011 Crude petroleum and petroleum products-Determination of nitrogen content
KS I ISO 13395:2008 Water quality-Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
KS M ISO 5397-2002(2017) Leather－Determination of nitrogen content and “hide substance”－Titrimetric method
KS E 3733-1989 Determination or Carbon Monoxide and Temperature in Combustion Gases of Holed Briquette
KS L 3413-2007 Testing method for moisture in graphite
KS D ISO 10720:2003 Steel and iron-Determination of nitrogen content-Thermal conductimetric method after fusion in a current of inert gas
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 9696:2007 Water quality－Measurement of gross alpha activity in non-saline water－Thick source method

SE-SIS, Nitrogen content detection in water

SIS SS 02 81 33-1991 Determination of the sum of the nitrite and nitrate nitrogen 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 19-1974 Determination of calcium content of water
SIS 02 81 20-1974 Determination of chloride content of water
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 SS 19 10 11-1992 Animal feeding stuffs, chemical examination — Determination of moisture content
SIS SS 02 81 45-1991 Determination ofoilin water — Infrared spectrophotometric method
SIS SS 02 81 82-1986 Determination of sulfate content of water- Titrimetric Thorin method

Indonesia Standards, Nitrogen content detection 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 03-6791-2002 Test method of cement content in soil-cement mixture by chemistry analysis
SNI 06-6989.14-2004 Water and waste water - Part 14: Test methods of dissolved oxygen by iodometry (azide modification)
SNI 2490-2008 Testing methodes for water content of asphalt and material contain asphalt by using of destilation method
SNI 06-6875-2002 Test methods of sulphides content in water by iodometry

Japanese Industrial Standards Committee (JISC), Nitrogen content detection 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 8231:1982 Methods for determination of combined water in manganese ores

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Nitrogen content detection 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 5687.4-2016 Nitrogen-bearing ferrochromium and nitride ferrochrome with high nitrogen content.Determination of nitrogen content.The distillation-neutralization titration method
GB/T 3600-2000 Fertilizers-Determination of ammoniacal nitrogen content-Formaldehyde method
GB/T 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 9823-2008 Inspection of grain and oils.Determination of total nitrogen content in plant oilseeds residues
GB/T 23835.12-2009 Lithium perchlorate anhydrous.Part 12:Determination of total nitrogen content
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 14605-1993 Determination of trace argon, nitrogen and krypton inoxygen. Gas chromatographic method
GB/T 3595-2000 Fertilizers-Determination of ammoniacal nitrogen content-Titrimetric method after distillation
GB/T 42263-2022 Determination of nitrogen content in silicon single crystal—Secondary ion mass spectrometry method
GB/T 17674-2012 Determination of nitrogen in crude oil by boat-inlet chemiluminescence
GB/T 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 21729-2008 Determination of selenium content in tea
GB/T 12152-2007 Water for boiler and cooling system.Determination of mineral oil
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 5512-2008 Inspect of grain and oilseeds.Determination of crude fat content in grain
GB/T 7717.7-1994 Acrylonitrile for industrial use-Determination of content of water
GB/T 5687.2-2007 Ferrochromium,silicochromium and nitrogen-bearing Ferrochromium-Determination of silicon content-The perchloric acid dehydration gravimetric method
GB/T 31776-2015 Determination method of methanol content in methanol gasoline for motor vehicles
GB/T 5514-2008 Inspection of grain and oils.Determination of starch content in grain and oilseeds
GB/T 42276-2022 Determination of fluorine ion and chloride ion in silicon nitride powder—Ion chromatography method
GB/T 12008.6-1989 Polyether polyols--Determination of water content
GB/T 12009.2-1989 Isocyanates--Determination of hydrolyzable chlorine content
GB 9018.10-1988 Celestite ores--Determination of hygroscopic moisture content--Gravimetric 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 24896-2010 Inspection of grain and oils-Determination of moisture content in paddy-Near-infrared method
GB/T 24898-2010 Inspection of grain and oils-Determination of moisture content in wheat-Near-infrared method
GB/T 24900-2010 Inspection of grain and oils-Determination of moisture content in maize-Near-infrared 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 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

Professional Standard - Agriculture, Nitrogen content detection in water

GB 3597-1983 Determination of nitrate nitrogen content in fertilizers Nitrogen reagent gravimetric method
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 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
CNAS-GI007-2021 Measurement guidelines included in the inspection process
GB 8575-1988 Determination of free water content in compound fertilizer
水产品质量安全检验手册 2.17.1.0-2005 Chapter 2 Basic Analysis Methods for Physical and Chemical Testing of Aquatic Products Section 17 Determination of Volatile Base Nitrogen in Aquatic Products (GBT 5009.44-2003) 1. Semi-trace Nitrogen Determination Method
825兽药典二部-2015 Appendix Table of Contents 2000 Traditional Chinese Medicine Detection Method 2202 Tannin Content Determination Method

American Society for Testing and Materials (ASTM), Nitrogen content detection in water

ASTM D5475-93(1997) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM D5475-93(2002) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
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 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 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 D5176-08(2015) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
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 UOP981-10 Trace Nitrogen in Liquid Hydrocarbons by Oxidative Combustion with Chemiluminescence Detection
ASTM UOP981-14 Trace Nitrogen in Liquid Hydrocarbons by Oxidative Combustion with Chemiluminescence Detection
ASTM UOP981-11 Trace Nitrogen in Liquid Hydrocarbons by Oxidative Combustion with Chemiluminescence Detection
ASTM D1607-91(2005) Standard Test Method for Nitrogen Dioxide Content of the Atmosphere (Griess-Saltzman Reaction)
ASTM E1019-00 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM E1019-18 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM D4629-12(2017) Standard Test Method for Trace Nitrogen in Liquid Petroleum Hydrocarbons by Syringe/Inlet Oxidative Combustion and Chemiluminescence Detection
ASTM D4888-88(1999) Standard Test Method for Water Vapor in Natural Gas Using Length-of-Stain Detector Tubes
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 C1096-91(2004)e1 Standard Test Method for Determination of Wood Fiber in Asbestos Cement

Association Francaise de Normalisation, Nitrogen content detection in water

NF U42-191:1988 Fertilizers. Nitrogenous fertilizers containing synthetic organic nitrogen. Determination of the types of nitrogen.
NF T90-015:1975 TESTING WATER-DETERMINATION OF NITROGEN (AMMONIA)
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 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 V76-134*NF EN 12135:1997 Fruit and vegetable juices. Determination of nitrogen content. Kjeldahl method.
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 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.
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 V04-407:2002 Meat, meat product and fishery products - Determination of nitrogen content and calculation of the protein content - Kjeldahl method.
NF T90-080:1997 Water quality - Determination of ammonium nitrogen by flow analysis (CFA and FIA) and spectrometric detection.
NF M60-471*NF EN ISO 12799:2019 Nuclear energy - Determination of nitrogen content in UO2, (U,Gd)O2 and (U,Pu)O2 sintered pellets - Inert gas extraction and conductivity detection method
NF V03-050*NF ISO 1871:2009 Food and feed products - General guidelines for the determination of nitrogen by the Kjeldahl 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 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.

AR-IRAM, Nitrogen content detection in water

TN-INNORPI, Nitrogen content detection in water

NT 14.33-1983

RU-GOST R, Nitrogen content detection in water

GOST EN 15478-2013 Fertilizers. Determination of total nitrogen in urea
GOST 32459-2013 White phosphorus. Determination in water by gas chromatography with nitrogen-phosphorus detector
GOST 32527-2013 Mineral nitrogen-containing substances. Determination in air and water
GOST 30181.3-1994 Mineral fertilizers. Method for determination of mass fraction of nitrogen in fertilizers with nitrate nitrogen
GOST R 51438-1999 Fruit and vegetable juices. Kjeldahl method for determination of nitrogen content
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 15561-2013 Fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates
GOST R 53219-2008 Soil quality. Determination of nitrogen in air-dry soils using calcium chloride solution
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)

工业和信息化部, Nitrogen content detection in water

YB/T 4582.7-2017 Determination of total nitrogen content of ferrous silicon nitride by neutralization titration method
YB/T 4566.5-2016 Determination of vanadium ferrosilicon content by sulfuric acid dehydration gravimetric method
YB/T 4566.2-2016 Determination of nitrogen content of vanadium iron nitride, distillation and separation-acid-base neutralization titration method
YB/T 4582.8-2017 Determination of silicon content in ferrosilicon nitride perchloric acid dehydration gravimetric method
YS/T 1539-2022 Determination of boron nitride content in aluminum-based boron nitride powder by inductively coupled plasma atomic emission spectrometry
HG/T 6072-2022 Determination of thiocyanate content in coking wastewater

VN-TCVN, Nitrogen content detection 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 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 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)

Danish Standards Foundation, Nitrogen content detection in water

DS/EN 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
DS/EN 10179:1989 Chemical analysis of ferrous materials. Determination of nitrogen (trace amount) in steels. Spectrophotometric method
DS/EN ISO 10720:2007 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas

Lithuanian Standards Office , Nitrogen content detection in water

LST EN 12135-2001 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method

AENOR, Nitrogen content detection in water

UNE-EN 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
UNE 22301:1992 APPARATUS FOR THE DETECTION AND MEASUREMENT OF METHANE TO 5% IN UNDERGROUND MINES.

German Institute for Standardization, Nitrogen content detection in water

DIN EN 12135:1997-12 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method; German version EN 12135:1997
DIN CEN/TS 15750:2008 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version CEN/TS 15750:2008
DIN EN 12260:2003 Water quality - Determination of nitrogen - Determination of bound nitrogen (TN<(Index)b>), following oxidation to nitrogen oxides; German version EN 12260:2003
DIN EN ISO 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 15561:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version CEN/TS 15561:2007
DIN 53308:1968 Testing of leather; determination of the contents of total nitrogen and of ammonium salts, calculation of hide substance
DIN EN 12135:1997 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method; German version EN 12135:1997
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 51722-1:1990 Testing of solid fuels; determination of nitrogen content; semi-micro Kjeldahl method
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 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 51904:1981 Testing of carbon materials; determination of water content; solid matters
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 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 54286:1975 Testing of textiles; determination of the cysteic acid content in wool hydrolysates
DIN 53345-3:1978 Testing of fat liquors and greases for leather; methods of analysis, determination of water-content and water-miscible solvents
DIN 51904:2012 Testing of carbonaceous materials - Determination of water content - Solid matters
DIN 54287:1977 Testing of textiles; determination of alkali content of wool
DIN 51444:2003 Testing of petroleum products - Determination of nitrogen - Oxidative combustion method with chemiluminescence detector
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 14790:2006 Stationary source emissions - Determination of the water vapour in ducts; English version of DIN EN 14790:2006-04

Professional Standard - Commodity Inspection, Nitrogen content detection 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 0736.5-1999 Chemical analysis of fertilizers for import and export.Determination of nitrogen content
SN/T 3097-2012 Determination of total nitrogen in fertelezers.Combustion
SN/T 0541.5-2009 Inspecting method of import and export standard rubber.Determination of nitrogen content
SN/T 0393-1995 Method for the inspection of mercury in fishery products for export
SN/T 3382-2012 Determination of non-protein-nitrogen content in milk and dairy products for export
SN/T 0736.11-2002 Chemical analysis of fertilizers for import and export.Determination of nitrogen content by auto analyzer
SN/T 0736.5-2010 Test method of import and export fertilizers.Part 5: Determination of nitrogen content
SN/T 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
SN/T 3810-2014 Determination of nitrogen content in urea and ammonium sulphate.X-ray fluorescence spectrometry
SN/T 1566-2005 Determination of down content of washed feather and down-Down testing instrumentation
SN/T 3005-2011 Test method for instrumental determination of carbon,hydrogen,nitrogen and sulfur in organic chemicals

Professional Standard - Ferrous Metallurgy, Nitrogen content detection 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, Nitrogen content detection 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 41153-2021 Determination of boron, aluminum and nitrogen impurity content in silicon carbide single crystal—Secondary ion mass spectrometry

Professional Standard - Energy, Nitrogen content detection in water

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

YU-JUS, Nitrogen content detection in water

JUS F.S2.011-1989 Testing of textiles. Detennination of moisture regain in wool
JUS H.G8.447-1990 Reagents. Zine sulphate heptahydrate. Determination of total nitrogen content. Colorimetric method
JUS D.A8.062-1985 Testing otplywood. Determination of moisture content
JUS D.C8.103-1983 Testing ofparticle boards. Determination of moisture content
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.G8.467-1991 Reagents.Nickel(II) sulphate x-hydrate.Determination of total nitrogen content.Colorimetric method
JUS E.L8.005-1980 Method of determination ofwather content in caces
JUS D.A8.083-1984 Testing of fibre building boards. Determination ofmoisture content
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 D.A8.063-1985 Testing ofplywood. Stability on the moisture
JUS E.M8.022-1987 Determination of moisture in bakery yeast
JUS H.Z1.180-1985 Testing of industrial vvaters. Determination of nickel content. Polarographic method
JUS H.N8.206-1987 Testing ofpaper and board. Determination of moisture content, Oven drying method
JUS H.Z1.137-1985 Testing of industrial vvaters. Determination of nitrite-nitrate and the combined nitrite-nitrate nitrogen, Spectrophotometric method
JUS H.P8.047-1985 Testingof pesticides. Determination of watercontentaccording to DeanStark
JUS H.Z1.195-1987 Testing of industrial vvaters. Determination of thorium content. Spectrophotometric method.
JUS H.Z1.163-1984 Testing of industrial vvaters. Determination od sulphate content. Gravimetric method with barium chlo- ride
JUS H.Z1.147-1984 Testing of industrial vvaters. Determination content of phenol in concentration more than 20 mg/l. Spectrophotometric method
JUS H.Z1.181-1985 Testing of industrial vvaters. Determination of calcium and magnesium content — EDTA — titrimetric method
JUS H.Z1.113-1985 Testing of industrial watei% Determination of silver content. Atomic apsorption method
JUS F.S3.011-1989 Standard method of test far wool content of raw wool. Laboratorv scale

PT-IPQ, Nitrogen content detection 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

European Committee for Standardization (CEN), Nitrogen content detection in water

PD CEN/TS 15750:2008 Fertilizers - Determination of different forms of nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
EN 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 12135:1997 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
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
FprCEN/TS 17761-2021 Inorganic fertilizers - Determination of the chloride content in ammonium nitrate fertilizers of high nitrogen content
EN ISO 960:1997 Plastics - Polyamides (PA) - Determination of Water Content ISO 960:1988
EN ISO 10720:2007 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas

Professional Standard - Petrochemical Industry, Nitrogen content detection in water

SH/T 0413-1992 Determination of Trace Basic Nitrogen Content in Liquid Paraffin
SH/T 0224-1992 Determination of Nitrogen Content in Petroleum Additives (Kirsch method)
NB/SH/T 0704-2010 Standard test method for nitrogen in petroleum and petroleum products by boat-inlet chemiluminescence
SH/T 0704-2001 Standard test method for nitrogen in petroleum and petroleum products by boat-inlet chemiluminescence
SH/T 0246-1992 Determination of Water Content in Light Petroleum Products (Electrometry)

Shandong Provincial Standard of the People's Republic of China, Nitrogen content detection in water

DB37/T 2735-2015 Determination of ammonium sulfate content in dry powder fire extinguishing agent Total nitrogen content method
DB37/T 4201-2020 Rapid Screening and Detection Method for Chloride Ion Content in Cement
DB37/T 343-2003 Determination method of phosphate content in cod and other aquatic products
DB37/T 2618-2014 Determination of Selenium Content in Microelement Water-Soluble Fertilizer
DB37/T 337-2003 The detection method of pollen type and content in honey

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, Nitrogen content detection in water

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

ES-UNE, Nitrogen content detection 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 ISO 12799:2019 Nuclear energy - Determination of nitrogen content in UO2, (U,Gd)O2 and (U,Pu)O2 sintered pellets - Inert gas extraction and conductivity detection method (ISO 12799:2015) (Endorsed by Asociación Española de Normalización in July of 2019.)
UNE 103202:2019 Qualitative determination of soluble sulphates (in water) content in a soil.

BR-ABNT, Nitrogen content detection in water

ABNT MB-1133-1979

Group Standards of the People's Republic of China, Nitrogen content detection in water

T/CPMA 021-2020 Method of on-site detection of ammonia nitrogen in drinking water - Salicylic Acid Method
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/CPCIF 0168-2021 Rapid detection kits for nitrite，nitrate and ammonia nitrogen in water
T/NXCL 023-2023 Determination of hydrogen and nitrogen in Beryllium— Inert gas fusion infrared absorption/ thermal conductivity method
T/SDAQI 064-2021 Determination of urea content in diesel engines NOx reduction agent - Aqueous urea solution by refractive index
T/SXCIES 002-2020 Crude benzol- Determination of moisture content
T/SDAQI 061-2021 Determination of Phosphite in Water-soluble Fertilizer

ZA-SANS, Nitrogen content detection in water

SANS 5287:1975 Calcium in solutions, detection
SANS 5386:1987 Potassium in solutions, detection
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 5292:1987 Sulphates in solutions, detection
SANS 377:2005 Standard test methods for selenium in water
SANS 5623:1972 Determination of ash content of water-insolubles in leather
SANS 5289:1987 Chlorides in solids and liquids, detection
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

BE-NBN, Nitrogen content detection 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

International Organization for Standardization (ISO), Nitrogen content detection in water

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 3087:2011 Iron ores - Determination of the moisture content of a lot
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 12799:2015 Nuclear energy - Determination of nitrogen content in UO2, (U,Gd)O2 and (U,Pu)O2 sintered pellets - Inert gas extraction and conductivity detection method
ISO 9696:2007 Water quality - Measurement of gross alpha activity in non-saline water - Thick source method

工业和信息化部/国家能源局, Nitrogen content detection in water

JB/T 13306-2017 Method for detecting impurity content in superabrasive cubic boron nitride
JB/T 12920-2016 Method for detecting water content of hydraulic transmission hydraulic oil

ES-AENOR, Nitrogen content detection 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

CEN - European Committee for Standardization, Nitrogen content detection in water

EN ISO 8968-4:2001 Milk - Determination of Nitrogen Content - Part 4: Determination of Non-Protein Nitrogen Content
EN ISO 12799:2019 Nuclear energy - Determination of nitrogen content in UO2@ (U@Gd)O2 and (U@Pu)O2 sintered pellets - Inert gas extraction and conductivity detection method

国家质量监督检验检疫总局, Nitrogen content detection in water

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

AT-ON, Nitrogen content detection in water

ONORM DIN 10321-1993 Determination of water content of dried milk
ONORM DIN 10317-1993 Determination of water content of butter
ONORM L 1062-1988 Physical investigations ofsoil; determination of water content and water ratio
ONORM DIN 10334-1994 Determination of nitrogen content of milk according to Kjeldahl and calculation of crude protein content

Taiwan Provincial Standard of the People's Republic of China, Nitrogen content detection in water

CNS 6241-1980 Method of Test for Water of Hydration in Tribasic Lead Phosphosilicate
CNS 8161-1981 Method of Test for Essential Oil Content in Perfume (for Cosmetic)
CNS 8999-1982 Methods of Test for Copper in Industrial Waste Water - Polarographic Method
CNS 11459-1985 Method of Test for Tobacco - Determination of Water Content
CNS 5885-1980 Method of Test for Hygroscopic Moisture (And Other Matter Volatile Under the Test Condition) in Pigments
CNS 8997-1982 Method of Test for Copper in Industrial Waste Water - Spectrophotometric Method
CNS 3948-1976 Nethod of Test for Moisture in Ethylene
CNS 9745-1982 Method of Test for Calcium Sulfate in Hydrated Portland Cement Mortar
CNS 8162-1981 Method of Test for Methanol and Ethanol Content in Perfume (for Cosmetic)
CNS 8998-1982 Method of Test for Copper in Industrial Waste Water - Atomic Absorption Spectrophotometric Method
CNS 6258-2008 Method of test for meat and meat products - Determination of moisture content

Professional Standard-Ships, Nitrogen content detection in water

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

NL-NEN, Nitrogen content detection 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-EN 196-21-1993 Methods of testing cement. Determination of the chloride, carbon dioxide and alkali content of cement
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

CU-NC, Nitrogen content detection in water

NC 24-65-1986 Inorganic Chemical Products Nitrogen. Determination of Water Vapor Content. Aerial Water Point Method

Anhui Provincial Standard of the People's Republic of China, Nitrogen content detection in water

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

Henan Provincial Standard of the People's Republic of China, Nitrogen content detection in water

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

国家能源局, Nitrogen content detection in water

NB/SH/T 0980-2019 Determination of basic nitrogen content in petroleum fractions by potentiometric titration method
SY/T 7507-2016 Determination of water content in natural gas by electrolysis method

VE-FONDONORMA, Nitrogen content detection in water

Military Standard of the People's Republic of China-General Armament Department, Nitrogen content detection in water

GJB 533.5-1988 Detection method for 45 components of submarine cabin air. Determination of nitrogen oxide content. Calibration tube method
GJB 8619-2015 Method for detecting water content of working fluid in aircraft hydraulic system
GJB 336-1987 Method for determination of moisture content of black powder in water-immersed ignition powder boxes

Professional Standard - Aviation, Nitrogen content detection in water

HB 5297.17-1984 Determination of Nitrogen in Titanium and Titanium Alloys by Steam Distillation
HB 5297.25-2001 Methods of chemical analysis of titanium alloys - Determination of nitrogen content by steam distillation

National Metrological Verification Regulations of the People's Republic of China, Nitrogen content detection in water

JJG 1023-2007 Testing Instrument for Density and Moisture with Nuclear Radiation Method

Xinjiang Provincial Standard of the People's Republic of China, Nitrogen content detection in water

DB65/ 037.2-2001 Detemination of Detergent content in gasoline

International Truck and Engine Corporation (ITEC), Nitrogen content detection in water

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

NO-SN, Nitrogen content detection 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

TR-TSE, Nitrogen content detection in water

TS 3651-1981 METHODS FOR THE ANALYSIS OF WATER — DETERMINATION OF IRON CONTENT — 1,10 Phenanthroline Spectrophotometry Method
TS 2879-1977 METHODS FOR THE ANALYSIS OF WATER DETERMINATION OF CALCIUM AND MAGNESIUM CONTENTS

Heilongjiang Provincial Standard of the People's Republic of China, Nitrogen content detection in water

DB23/T 2963-2021 Determination of Trace Calcium Content in Natural Flake Graphite by Calcium-Arsenazo Ⅲ Spectrophotometric Method

Universal Oil Products Company (UOP), Nitrogen content detection in water

UOP 981-2014 Trace Nitrogen in Liquid Hydrocarbons by Oxidative Combustion with Chemiluminescence Detection

能源部, Nitrogen content detection in water

SY/T 5567-1993 Maintenance specifications for small diameter flow water content tester

Professional Standard - Petroleum, Nitrogen content detection in water

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

Professional Standard - Chemical Industry, Nitrogen content detection in water

HG 5-1341-1980 Method for Determination of Moisture Content in Phenolic Resin
HG/T 4552.1~4552.3-2013 Determination method of tin content in tin stripping wastewater (2013)
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 3527-2008 Industrial circulating cooling water.Determination of mineral oil

Professional Standard - Non-ferrous Metal, Nitrogen content detection in water

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

Professional Standard - Construction Industry, Nitrogen content detection in water

JGJ/T 322-2013 Technical specification for test of chloride ion content in concrete

Professional Standard - Building Materials, Nitrogen content detection in water

JC/T 668-1997 Test method for calcium sulfate in hydrated cement mortar

(U.S.) Ford Automotive Standards, Nitrogen content detection 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

Hebei Provincial Standard of the People's Republic of China, Nitrogen content detection in water

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

Military Standard of the People's Republic of China-Commission of Science,Technology and Industry for National Defence, Nitrogen content detection in water

GJB 5886-2006 Determination method for water content of operating fluid for aviation hydraulic system

AASHTO - American Association of State Highway and Transportation Officials, Nitrogen content detection in water

TP 78-2009 Standard Specification for Detecting the Presence of Phosphorous in Asphalt Binder

Zhejiang Provincial Standard of the People's Republic of China, Nitrogen content detection in water

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