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Nitrogen method

Nitrogen method, Total:246 items.

In the international standard classification, Nitrogen method involves: Fertilizers, Farming and forestry, Coals, Water quality, Products of the chemical industry, Milk and milk products, Metalliferous minerals, Fruits. Vegetables, Ferroalloys, Soil quality. Pedology, Animal feeding stuffs, External water conveyance systems, Air quality, Heat treatment, General methods of tests and analysis for food products, Products of the textile industry, Construction materials, Sugar. Sugar products. Starch, Beverages, Analytical chemistry, Non-ferrous metals, Ferrous metals, Vocabularies, Inorganic chemicals, Iron and steel products, Paints and varnishes, Linear and angular measurements, Aircraft and space vehicles in general.

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Nitrogen method

• GB/T 3597-2002 Fertilizer--Determination of nitrate nitrogen content--Nitron gravimetric method
• GB/T 8979-2008 Pure nitrogen and high purity nitrogen and ultra pure nitrogen
• GB/T 6625-1986 Test methods for nitrogen content of nitrogen-doped getter
• GB/T 10322.8-2009 Iron ores.Single-point determination of specific surface area.Nitrogen adsorption 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 24583.3-2009 Vanadium-Nitrogen alloy.Determination of nitrogen content.The distillation-neutralization titration method
• GB/T 9506.5-1988 Test method for nitrogen-released and gas-absorbed dynamic curve of nitrogen-doped getter
• GB/T 8979-1996 Pure nitrogen
• GB/T 18177-2008 Gas nitriding of steel parts
• GB/T 8980-1996 High purity nitrogen
• GB/T 3864-2008 Industrial nitrogen
• GB/T 24583.2-2009 Vanadium-Nitrogen alloy.Determination of nitrogen content.Thermal conductimetric method after fusion in a current of inert gas
• GB/T 3864-1996 Industrial nitrogen
• GB/T 19227-2008 Determination of nitrogen in coal

Association Francaise de Normalisation, Nitrogen method

• NF EN ISO 5378:1994 Starches and derived products - Determination of nitrogen according to the Kjeldahl method - Spectrophotometric method
• NF V04-211:1971 MILK. DETERMINATION OF TOTAL NITROGEN CONTENT. (KJELDAHL METHOD).
• NF EN 12135:1997 Fruit and vegetable juices - Nitrogen dosage - Kjeldahl method
• NF U42-503*NF EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
• NF ISO 11261:1995 Soil quality - Total nitrogen dosage - Modified Kjeldahl method
• NF U42-142*NF EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
• NF U42-149*NF EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
• NF U42-141:1984 Fertilizers. Determination of nitrate nitrogen content. Nitrogen gravimetric method.
• NF U42-191:2019 Fertilizers - Nitrogenous fertilizers containing synthetic organic nitrogen - Determination of the types of nitrogen
• NF EN ISO 3188:1994 Starches and derived products - Determination of nitrogen according to the Kjeldahl method - Titrimetric method
• NF X31-111*NF ISO 11261:1995 Soil quality. Determination of total nitrogen. Modified kjeldahl method.
• NF EN 15750:2010 Fertilizers - Determination of the total nitrogen content of fertilizers containing nitrogen only in nitric, ammoniacal and urea form, using two different methods
• NF T90-060:2004 Water quality - Determination of nitrogen - Determination of bound nitrogen (TN sub b), following oxidation to nitrogen oxides.

IN-BIS, Nitrogen method

• IS 5194-1969 Determination method of nitrogen-Kjeldahl method

SCC, Nitrogen method

• NS-EN 15750:2009 Fertilizers — Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
• SN-CEN/TS 15750:2008 Fertilizers — Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
• DANSK DS/EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
• AENOR UNE-EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
• DIN EN 15750 E:2009 Draft Document - Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version prEN 15750:2009
• BS DD CEN/TS 15750:2006 Fertilizers. Determination of different forms of nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
• BS DD CEN/TS 15750:2008 Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
• BS EN ISO 8968-1:2002 Milk. Determination of nitrogen content-Kjeldahl method
• 08/30179332 DC BS EN 15604. Fertilizers. Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
• SN-CEN/TS 15559:2007 Fertilizers — Determination of nitric and ammoniacal nitrogen according to Arnd
• AENOR UNE-EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
• SN-CEN/TS 15604:2007 Fertilizers — Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
• DANSK DS/ISO 15604:2020 Fertilizers – Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
• DANSK DS/EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
• NS-EN 15604:2009 Fertilizers — Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
• DANSK DS/EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
• NS-EN 15558:2009 Fertilizers — Determination of nitric and ammoniacal nitrogen according to Ulsch
• SN-CEN/TS 15558:2007 Fertilizers — Determination of nitric and ammoniacal nitrogen according to Ulsch
• DIN EN ISO 15604 E:2019 Draft Document - Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen (ISO 15604:2016); German and English version prEN ISO 15604:2019
• NS-EN 12135:1997 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
• CSA Z223.24-M1983-1983(R1999) Method for the Measurement of Nitric Oxide and Nitrogen Dioxide in Air
• DANSK DS/EN 12135:1997 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
• 08/30179316 DC BS EN 15558. Fertilizers. Determination of nitric and ammoniacal nitrogen according to Ulsch
• DANSK DS/EN ISO 3188:1994 Starches and derived products - Determination of nitrogen content by the Kjeldahl method - Titrimetric method
• NS-EN 12260:2003 Water quality — Determination of nitrogen — Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides
• DANSK DS/EN 12260:2003 Water quality – Determination of nitrogen – Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides
• DANSK DS/ISO 1871:2009 Food and feed products - General guidelines for the determination of nitrogen by the Kjeldahl method
• BS DD ENV 12260:1996 Water quality. Determination of nitrogen. Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
• DANSK DS/EN ISO 5378:1994 Starches and derived products - Determination of nitrogen content by the Kjeldahl method - Spectrophometric method

German Institute for Standardization, Nitrogen method

• DIN EN 15750:2010-02 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version EN 15750:2009
• DIN CEN/TS 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 15604:2009-06 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen; German version EN 15604:2009 / Note: To be replaced by DIN EN ISO 15604 (2019-06).
• DIN EN 15558:2009-06 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch; German version EN 15558:2009
• DIN EN 12135:1997-12 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method; German version EN 12135:1997
• DIN CEN/TS 15604:2008 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen; German version CEN/TS 15604:2007
• DIN EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda; English version of DIN EN 15476:2009-04
• DIN CEN/TS 15559:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd; German version CEN/TS 15559:2007

BE-NBN, Nitrogen method

• NBN T 91-255-1976 Water analysis methods - Determination of the ammoniacal and organic nitrogen - (Kjeldahl nitrogen)

Spanish Association for Standardization (UNE), Nitrogen method

• UNE-EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
• UNE-EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
• UNE-CEN/TS 15604:2008 EX Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
• UNE-CEN/TS 15558:2007 EX Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
• UNE 31015:1957 DETERMINATION OF NITROGEN BY LUNGE METHOD.
• UNE-EN 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
• UNE 77318:2001 Soil quality. Determination of total nitrogen. Modified Kjeldahl method.
• UNE-EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
• UNE-EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
• UNE 31 015 Nitrogen determination by Lenger method
• UNE-EN 12260:2004 Water quality - Determination of nitrogen - Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides

Lithuanian Standards Office , Nitrogen method

• LST EN 15750-2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
• LST EN 15604-2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
• LST EN 12135-2001 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
• LST EN 15476-2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
• LST EN 12260-2004 Water quality - Determination of nitrogen - Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides
• LST EN 15558-2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch

Heilongjiang Provincial Standard of the People's Republic of China, Nitrogen method

• DB2308/T 165-2023 Technical regulations for corn nitrogen saturation index top dressing

Danish Standards Foundation, Nitrogen method

• DS/EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
• DS/EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
• DS/EN ISO 8968-1:2002 Milk - Determination of nitrogen content - Part 1: Kjeldahl method
• DS/EN 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
• DS/EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
• DS/EN 12260:2004 Water quality - Determination of nitrogen - Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides
• DS/EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
• DS/EN ISO 3188:1995 Starches and derived products - Determination of nitrogen content by the Kjeldahl method - Titrimetric method

International Organization for Standardization (ISO), Nitrogen method

• ISO 332:1981 Coal — Determination of nitrogen — Macro Kjeldahl method
• ISO 332:1974 Title missing - Legacy paper document
• ISO 333:1983 Coal; Determination of nitrogen; Semi-micro Kjeldahl method
• ISO 8968-1:2001 | IDF 20-1: 2001 Milk — Determination of nitrogen content — Part 1: Kjeldahl method
• ISO 11261:1995 Soil quality - Determination of total nitrogen - Modified Kjeldahl method
• ISO/TR 11905-2:1997 Water quality - Determination of nitrogen - Part 2: Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection

Group Standards of the People's Republic of China, Nitrogen method

• T/QAS 071-2021 Determination of total nitrogen in brine Kjeldahl method
• T/NAIA 044-2021 Urine Total Nitrogen Determination in Livestock Kjeldahl Method
• T/NAIA 001-2020 Determination of ammoniacal nitrogen in fermented feed Kjeldahl method

GOSTR, Nitrogen method

• GOST R ISO 15604-2019 Fertilizers. Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen

European Committee for Standardization (CEN), Nitrogen method

• EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
• 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 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda

Jilin Provincial Standard of the People's Republic of China, Nitrogen method

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

Military Standard of the People's Republic of China-General Armament Department, Nitrogen method

• GJB 3403-1998 Nitrogen and Liquid Nitrogen Specifications
• GJB 2253-1994 Guidelines for safe use of nitrogen and liquid nitrogen
• GJB 2253A-2008 Safe application rules for gaseous nitrogen and liquid nitrogen
• GJB 770.303-1989 Test methods for gunpowder analysis: Determination of nitrogen content of nitrocellulose. Five-tube nitrogen meter method

RU-GOST R, Nitrogen method

• GOST 34111-2017 Juice products. Determination of nitrogen content by Kjeldahl 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 16698.13-1993 Metallic manganese and nitrated manganese. Method for determination of nitrogen
• GOST 16698.13-1984 Metallic manganese. Method for determination of nitrogen
• GOST EN 15604-2013 Fertilizers. Determination of different forms of nitrogen in the same sample: nitric, ammoniacal, cyanamide and urea nitrogen
• GOST 27749.0-1988 Carbamid. Method of nitrogen content determination
• GOST 8775.4-1987 Lithium. Method of determination of nitrogen
• GOST 30181.6-1994 Mineral fertilizers. Method for determination of mass fraction of nitrogen in ammonium salts (in ammonium form, using the formaldehyde method)
• GOST R 55246-2012 Milk and milk products. Determination of non-protein nitrogen content by Kjeldahl method
• GOST 21600.6-1983 Ferrochrome. Method for the determination of nitrogen
• GOST 11827-1977 Diazol scarlet K and diazol pink O. Specifications
• GOST 15933.11-1970 Ferroniobium. Method for the determination of nitrogen content

British Standards Institution (BSI), Nitrogen method

• 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 15750:2010 Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
• BS DD CEN/TS 15604:2007 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
• 14/30313910 DC BS ISO 15604. Fertilizers. Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
• BS EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
• DD CEN/TS 15604:2007 Fertilizers — Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
• BS EN 15476:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
• BS DD CEN/TS 15476:2006 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
• BS 7755-3.7:1995 Soil quality. Chemical methods. Determination of total nitrogen. Modified Kjeldahl method
• BS EN ISO 5378:1994(1999) Starches and derived products — Determination of nitrogen content by the Kjeldahl method — Spectrometric method
• BS EN ISO 3188:1994(1999) Starches and derived products — Determination of nitrogen content by the Kjeldahl method — Titrimetric method
• BS EN 12260:2003(2008)*BS 6068-2.83:2003 Water quality - Determination of nitrogen - Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides
• BS EN 15559:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
• BS EN 12260-2003(2008)*BS 6068-2.83:2003 Water quality — Determination of nitrogen — Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides

Korean Agency for Technology and Standards (KATS), Nitrogen method

• KS E ISO 333-2018 Coal－Determination of nitrogen－Semi-micro Kjeldahl method
• KS E ISO 333-2003(2013) Coal－Determination of nitrogen－Semi-micro Kjeldahl method
• KS E ISO 333:2003 Coal－Determination of nitrogen－Semi-micro Kjeldahl method
• KS I ISO 11261-2008(2021) Soil quality－Determination of total nitrogen－Modified Kjeldahl method
• KS M ISO 4176-2006(2011) Fertilizers－Determination of nitrate nitrogen content－Nitron gravimetric method
• KS I ISO 11261-2008(2018) Soil quality－Determination of total nitrogen－Modified Kjeldahl method
• KS H ISO 3188-2023 Starches and derived products－Determination of nitrogen content by the Kjeldahl method－Titrimetric method
• KS H ISO 3188-2008(2018) Starches and derived products－Determination of nitrogen content by the Kjeldahl method－Titrimetric method
• KS I ISO 11261-2021 Soil quality－Determination of total nitrogen－Modified Kjeldahl method
• KS H ISO 1871-2023 Agricultural food products ― General directions for the determination of nitrogen by the Kjeldahl method
• KS I ISO 11261:2008 Soil quality-Determination of total nitrogen-Modified Kjeldahl method
• KS D 8351-2013 Titanium nitride coatings by dry processing
• KS D 8351-1995(2010) Titanium nitride coatings by dry processing
• KS H ISO 5378-2023 Starches and derived products－Determination of nitrogen content by the Kjeldahl method－Spectrophotometric method
• KS I ISO 11905-2-2008(2013) Water quality－Determination of nitrogen－Part 2：Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
• KS M 1125-1995 High purity nitrogen
• KS M 1125-2010 High purity nitrogen
• KS H ISO 5378-2008(2018) Starches and derived products－Determination of nitrogen content by the Kjeldahl method－Spectrophotometric method
• KS D 2555-1995 Methods for determination of nitrogen in tantalum
• KS M 1125-1985 High purity nitrogen
• KS M 1047-2009 Nitrogen monoxide and nitrogen dioxide(standard reference materials)
• KS D 2555-2015 Methods for determination of nitrogen in tantalum

PL-PKN, Nitrogen method

• PN C04576 ArkusZ12-1973 Water and waste water Tests for nitrogenDetermination of total nitrogen of Kjeldahl
• PN C04576 ArkusZ02-1973 Water and waste water Tests for nitrogen Determination of ammonium nitrogen by titrimetric method
• PN C04576 ArkusZ11-1973 Water and waste water Tests for nitrogen Determination of organie nitrogen
• PN C04576 ArkusZ13-1973 Water and waste water Tests for nilrogen Determination of albuminous nitrogen
• PN C87030-16-1990 Horticultural (ertilizers Method for determination of nitrogen
• PN C04576 ArkusZ14-1973 Water and w?sie water Tes?s for nitrogen Calcula?ion of to?al nitrogen

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

• GJB 3403A-2019 Specification for gaseous nitrogen and liquid nitrogen

Professional Standard - Agriculture, Nitrogen method

• NY/T 2419-2013 Determination of total nitrogen in plant.Automatic kjeldahl apparatus method
• NY/T 1116-2014 Fertilizers.Determination of nitrate nitrogen, ammonium nitrogen, amide nitrogen contents
• GB 4845-1984 Nitrogen test method
• GB 3597-1983 Determination of nitrate nitrogen content in fertilizers Nitrogen reagent gravimetric method
• ZB X 66038-1987 Amino nitrogen determination method
• 2323藥典 二部-2010 Appendix VII D Nitrogen Determination Method
• 175藥典 三部-2010 Appendix VI VIA Nitrogen Determination Method
• 1789藥典 一部-2010 Appendix IX L Nitrogen Determination Method
• JAP-031 Azaphenanthridine detection method

工業(yè)和信息化部, Nitrogen method

• YB/T 4528-2016 Determination of nitrogen content in ferrochromium nitride and high nitrogen ferrochrome by inert gas melting thermal conductivity method
• YB/T 4582.7-2017 Determination of total nitrogen content of ferrous silicon nitride by neutralization titration method
• YB/T 4529-2016 Determination of nitrogen content in manganese iron nitride by inert gas melting thermal conductivity method
• YB/T 4566.1-2016 Determination of nitrogen content in vanadium iron nitride by inert gas melting thermal conductivity method

Ningxia Provincial Standard of the People's Republic of China, Nitrogen method

• DB64/T 1734-2020 Soil Hydrolyzable Nitrogen Determination Kjeldahl Method

VN-TCVN, Nitrogen method

• TCVN 6498-1999 Soil quality.Determination of total nitrogen.Modifierd Kejldahl method
• TCVN 6624-2-2000 Water quality.Determination of nitrogen.Part 1: Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
• TCVN 3286-1979 Nitrogen technical

American Society for Testing and Materials (ASTM), Nitrogen method

• ASTM D3590-02 Standard Test Methods for Total Kjeldahl Nitrogen in Water
• ASTM D3590-17 Standard Test Methods for Total Kjeldahl Nitrogen in Water
• ASTM D3590-11 Standard Test Methods for Total Kjeldahl Nitrogen in Water
• ASTM E147-61(2017) Standard Specification for Apparatus for Microdetermination of Nitrogen by Kjeldahl Method

Indonesia Standards, Nitrogen method

• SNI 4146-2013 Method for determination of total nitrogen content in sediment by Kjeldahl titration method

South African Bureau of Standard, Nitrogen method

• SANS 333:1996 Coal - Determination of nitrogen - Semi-micro Kjeldahl method

Association of Official Analytical Chemists (AOAC), Nitrogen method

• AOAC 991.20 AOAC Official Method 991.20 Nitrogen (Total) in Milk Kjeldahl Methods

GM Europe, Nitrogen method

• GME B 040 0400-1999 Nitrogen (German)

GSO, Nitrogen method

• OS GSO ISO 11261:2015 Soil quality -- Determination of total nitrogen -- Modified Kjeldahl method
• GSO ISO 11261:2015 Soil quality -- Determination of total nitrogen -- Modified Kjeldahl method
• BH GSO ISO 11261:2017 Soil quality -- Determination of total nitrogen -- Modified Kjeldahl method
• GSO ISO 1871:2008 Agricultural food products — General directions for the determination of nitrogen by the Kjeldahl method
• GSO ISO 3188:2015 Starches and derived products -- Determination of nitrogen content by the Kjeldahl method -- Titrimetric method
• OS GSO ISO 1871:2008 Agricultural food products — General directions for the determination of nitrogen by the Kjeldahl method
• GSO ISO 5378:2015 Starches and derived products -- Determination of nitrogen content by the Kjeldahl method -- Spectrophotometric method

RO-ASRO, Nitrogen method

• STAS SR ISO 7408:1993 Fertilizers. Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide. Titrimetric method
• SR ISO 4176:1981 Fertilizers. Determination of nitrate nitrogen content. Nitrogen gravimetric method
• SR 184-25-1998 Ethyl alcohol. Determination of ammonia and azotic bases nitrogen content

Standard Association of Australia （SAA）, Nitrogen method

• AS 1871.11:1976 List of methods for examination of waters Nitrogen (total Kjeldahl incl. ammoniacal)

Chongqing Provincial Standard of the People's Republic of China, Nitrogen method

• DB50/T 833-2017 Determination of nitrogen oxides in ambient air (nitrogen monoxide and nitrogen dioxide) by chemiluminescence

Professional Standard - Business, Nitrogen method

• SB/T 10318-1999 Analysis of ammoniacal nitrogen

Professional Standard - Machinery, Nitrogen method

• JB/T 11232-2011 The technical requirements of accuracy-controlled gaseous nitriding

KR-KS, Nitrogen method

• KS H ISO 1871-2013(2023) Agricultural food products ― General directions for the determination of nitrogen by the Kjeldahl method
• KS H ISO 3188-2008(2023) Starches and derived products－Determination of nitrogen content by the Kjeldahl method－Titrimetric method
• KS H ISO 5378-2008(2023) Starches and derived products－Determination of nitrogen content by the Kjeldahl method－Spectrophotometric method

Taiwan Provincial Standard of the People's Republic of China, Nitrogen method

• CNS 9016-1982 Method of Test for Colour Fastness to Nitrogen Oxides
• CNS 11304-2002 Iron and steel-Methods for determination of nitrogen content
• CNS 188-1971 Method of Analysis for Calcium Cyanamide

Professional Standard - Ferrous Metallurgy, Nitrogen method

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

International Dairy Federation (IDF), Nitrogen method

• IDF 20-1-2001 Milk - Determination of nitrogen content - Part 1: Kjeldahl method

國(guó)家市場(chǎng)監(jiān)督管理總局、中國(guó)國(guó)家標(biāo)準(zhǔn)化管理委員會(huì), Nitrogen method

• GB/T 24583.3-2019 Vanadium-nitrogen—Determination of nitrogen content—Distillation-neutralization titration method
• GB/T 24583.2-2019 Vanadium-nitrogen—Determination of nitrogen content—Thermal conductimetric method after fusion in a current of inert gas
• GB/T 40535.1-2021 Test methods of continuous nitride ceramic fibers—Part 1：Nitrogen content

CZ-CSN, Nitrogen method

• CSN 56 0020-1987 General directions for the determination f nitrogen by the Kjeldahl method
• CSN 68 7137-1973 Cupferron (N-Nitroso-N-phenylhyclroxylamine ammotiium salt)
• CSN 70 4243-1981 Glass apparatus by Parnas-Wagner for the determination of nitrogen
• CSN 65 4121-1957 Nitride salt

Professional Standard - Environmental Protection, Nitrogen method

• HJ/T 64.3-2001 stationary source emission.Determination of cadmium.p-Azobenzenediazoaminazobenzene sulfonic acid spectrophotometric method
• HJ 634-2012 Soil.Determination of ammonium, nitrite and nitrate by extraction with potassium chloride solution-spectrophotometric methods
• HJ 479-2009 Ambient air.Determination of nitrogen oxides.N-(1-Naphthyl)ethylene diamine dihydrochloride spectrophotometric method

Japanese Industrial Standards Committee (JISC), Nitrogen method

• JIS K 1107:2005 Nitrogen
• JIS K 8037:1961 Azobenzene
• JIS B 6915:1999 Process of nitriding and nitrocarburizing of iron and steel
• JIS K 1107:1985 High purity nitrogen
• JIS H 1685:2000 Method for determination of nitrogen in tantalum

GOST, Nitrogen method

• GOST 2408.2-1975 Brown coals, hard coals, anthracite, combustible shales and turf. Method for thedetermination of nitrogen content
• GOST 34789-2021 Brewing products. Identification. Determination of mass concentration of total nitrogen by Kjeldahl method

Hubei Provincial Standard of the People's Republic of China, Nitrogen method

• DB42/T 2120-2023 Determination of ammonia nitrogen, nitrite nitrogen and nitrate nitrogen in soil by gas phase molecular absorption spectrometry

PT-IPQ, Nitrogen method

• NP EN 12135-2000 Fruit and vegetable juices Determination of nitrogen content Kjeldahl method

SE-SIS, Nitrogen method

• SIS SS 18 71 63-1984 Coal - Determination of nitrogen - Macro Kjeldahl method
• SIS MNC 855 E-1975 NITRIDING STEELS SUMMARY
• SIS 14 29 40-1975 Nitriding steel

Liaoning Provincial Standard of the People's Republic of China, Nitrogen method

• DB21/T 616-1991 Plant total nitrogen determination method

Professional Standard - Aerospace, Nitrogen method

• QJ 3225-2005 General Specifications for Nitrogen Generating and Nitrogen Filling Devices

CEN - European Committee for Standardization, Nitrogen method

• PD CEN/TS 15476:2006 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
• PD CEN/TS 15558:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch

Professional Standard - Aviation, Nitrogen method

• HB 5023-1994 Measuring method for nitriding and nitrocarburizing layer depth of aerospace steel parts

HU-MSZT, Nitrogen method

• MSZ 21 118-1980 Nitrogen
• MNOSZ 260-12.lap-1955 Experiments to detect sewage nitrogen and organic nitrogen
• MSZ 89-1981 Nitrogen, liquid

U.S. Military Regulations and Norms, Nitrogen method

• ARMY MIL-L-3055 C (1)-1993 LEAD AZIDE [Use In Lieu Of: ARMY MIL-L-003055 B]

Professional Standard - Non-ferrous Metal, Nitrogen method

• YS/T 671-2008 Dibutyl dithiocarbamate
• YS/T 270-2011 Ethyl thio carbamate

TR-TSE, Nitrogen method

• TS 2556-1977 Nitriding Steels

Others:   French nitrogen, Nitrogen determination, nitrogen method, nitrogen adsorption method, nitrogen bet method, total nitrogen method, nitrogen bet method, Nitrogen method, Nitrogen instrument, Biological nitrogen, alloy nitrogen method, Ammonia method, Nitrogen degassing, Dumas Nitrogen, Nitrogen quantification, total nitrogen, Nitrogen method, nitrogen method, Kjeldahl method, Kjeldahl nitrogen method.