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Determination of ammonia nitrogen content in water

Determination of ammonia nitrogen content in water, Total:498 items.

In the international standard classification, Determination of ammonia nitrogen content in water involves: Water quality, Fertilizers, Organic chemicals, Vocabularies, Raw materials for rubber and plastics, Soil quality. Pedology, Fuels, Non-ferrous metals, Inorganic chemicals, Ferroalloys, Analytical chemistry, Ferrous metals, Milk and milk products, Sugar. Sugar products. Starch, Photography, Wastes, Beverages, Air quality, Animal feeding stuffs, Textile fibres, Products of the chemical industry, Plastics, Leather technology, Paint ingredients, Construction materials, Protection against fire, Tobacco, tobacco products and related equipment, Meat, meat products and other animal produce, Spices and condiments. Food additives, Farming and forestry, Fruits. Vegetables, Power stations in general, Test conditions and procedures in general, Petroleum products in general, Coals, Nuclear energy engineering, Crude petroleum, Testing of metals, Cereals, pulses and derived products, Products of the textile industry, Adhesives, General methods of tests and analysis for food products, Edible oils and fats. Oilseeds, External water conveyance systems, Burners. Boilers.

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

NF T90-015:1975 TESTING WATER-DETERMINATION OF NITROGEN (AMMONIA)
NF U42-147*NF EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrate
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 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 U42-191:1988 Fertilizers. Nitrogenous fertilizers containing synthetic organic nitrogen. Determination of the types of nitrogen.
NF EN 15750:2010 Engrais - Détermination de la teneur en azote total des engrais ne contenant l'azote que sous forme nitrique, ammoniacale et uréique, selon deux méthodes différentes
NF T20-286:1982 Nitric acid for industrial use. Determination of ammoniacal nitrogen content. Spectrophotometric method.
NF U42-416*NF EN 15478:2009 Fertilizers - Determination of total nitrogen in urea.
NF U42-125:1985 Fertilizers. Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide. Titrimetric method.
NF T51-702*NF EN ISO 9702:1998 Plastics. Amine epoxide hardeners. Determination of primary, secondary and tertiary amine group nitrogen content.
NF V04-221-5:2002 Milk - Determination of nitrogen content - Part 5 : determination of protein-nitrogen content.
NF U42-141:1984 Fertilizers. Determination of nitrate nitrogen content. Nitrogen gravimetric method.
NF V04-221-4:2002 Milk - Determination of nitrogen content - Part 4 : determination of non-protein nitrogen content.
NF V04-211:1971 MILK. DETERMINATION OF TOTAL NITROGEN CONTENT. (KJELDAHL METHOD).
NF EN 15604:2009 Engrais - Détermination des différentes formes d'azote dans un même échantillon contenant l'azote sous forme nitrique, ammoniacale, uréique et cyanamidique
NF EN 15561:2009 Engrais - Dosage de l'azote total dans la cyanamide calcique nitratée
NF V59-202:1988 Collagenes. Determination of the nitrogen content.
NF X43-009:1973 Nitrogen dioxyde content of the atmosphere (griess saltzman reaction).
NF U42-117:1965 Products used in agriculture. Fertilizers. Determination of nitrogen content in class a nitrogenous fertilizers.
NF U42-118:1965 Products used in agriculture. Determination of nitrogen content in class B nitrogenous fertilizers.
NF U42-119:1965 Products used in agriculture. Determination of nitrogen content in class C nitrogenous fertilizers.
NF X33-009*NF EN 13342:2000 Characterization of sludges - Determination of Kjeldahl nitrogen
NF X31-111*NF ISO 11261:1995 Soil quality. Determination of total nitrogen. Modified kjeldahl method.
NF EN ISO 20483:2014 Céréales et légumineuses - Détermination de la teneur en azote et calcul de la teneur en protéines brutes - Méthode de Kjeldahl
NF G06-030*NF ISO 2915:2017 Wool - Determination of cysteic acid content of wool hydrolysates by paper electrophoresis and colorimetry
NF EN 15560:2009 Engrais - Dosage de l'azote total dans la cyanamide calcique exempte de nitrate
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 V76-134*NF EN 12135:1997 Fruit and vegetable juices. Determination of nitrogen content. Kjeldahl method.
NF EN ISO 17180:2013 Aliments des animaux - Détermination de la teneur en lysine, méthionine et thréonine dans les acides aminés du commerce et les prémix
NF V03-750:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method.
NF T90-080*NF EN ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection.
NF EN ISO 5983-1:2005 Aliments des animaux - Détermination de la teneur en azote et calcul de la teneur en protéines brutes - Partie 1 : méthode Kjeldahl
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

RO-ASRO, Determination of ammonia nitrogen content in water

SR 184-25-1998 Ethyl alcohol. Determination of ammonia and azotic bases nitrogen content
SR ISO 5314:1981 Fertilizers. Determination of ammoniaca! nitrogen content Titrimetric method after distillation
SR ISO 4176:1981 Fertilizers. Determination of nitrate nitrogen content. Nitrogen gravimetric method
STAS 8683-1970 SURFACE AND WASTE WATERS Determination of ainm nia nitrogen
STAS 6328-1985 DRINKING WATER Ammonia dctcrmination
STAS 12200-1985 SLUDGES RESULTED FROM= SURFACE WATERS TREATMENT AND WASTE WATERS PURIFI- CATION Nitrogen content determination
STAS 7312-1983 SURFACE AND RESIDUAL WATERS Determination of azote 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 9065/7-1974 MEAT AND MEAT PRODUCTS Determination of easyly hydrolisable nitrogen content
STAS 7425-1979 NITROCELLULOSES Determination of nitrogen content
STAS SR 12271-6-1994
STAS 8613/6-1980 CONCENTRATED FOODSTUFF Determination of nitrogen content
STAS 8854-1972 ADDITIVES FOR MINERAL OILS Determination of nitrogen content
STAS 6536-1987 DRINKING WATER Determination of dissolved oxygen content in water

VN-TCVN, Determination of ammonia 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 7872-2008 water.Determination of ammonia content.Ammonia selective electrode method
TCVN 2615-2008 Liquefied anhydrous ammonia for industrial use.Determination of ammonia content.Titrimetric method
TCVN 2616-2008 Liquefied anhydrous ammonia for industrial use.Determination of water content.Volumetric method
TCVN 3705-1990 Aquatic products.Method for the determination of total nitrogen and protein content
TCVN 5265-1990 Bee products.Determination of total nitrogen content
TCVN 8005-2008 Liquefied anhydrous ammonia for industrial use.Determination of water content.Karl Fischer method

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

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 30181.8-1994 Mineral fertilizers. Method for determination of mass fraction of ammonium nitrogen in compound fertilizers (chloramine method)
GOST EN 15478-2013 Fertilizers. Determination of total nitrogen in urea
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 EN 15604-2013 Fertilizers. Determination of different forms of nitrogen in the same sample: nitric, ammoniacal, cyanamide and urea nitrogen
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 27894.3-1988 Peat and products of its proccesing for agriculture. Methods for determination of ammonia nitrogen
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 30181.4-1994 Mineral fertilizers. Method for determination of total mass fraction of nitrogen in compound fertilizers and nitrale fertilizers in ammonium and nitrate forms (Deward Method)
GOST 28995-1991 Liquefied anhydrous ammonia for industrial use. Determination of water content. Gas chromatographic method
GOST EN 15561-2013 Fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates
GOST 33045-2014 Water. Methods for determination of nitrogen-containing matters
GOST 28326.2-1989 Technical liquid ammonia. Determination of water mass percentage by Fischer method
GOST R 51438-1999 Fruit and vegetable juices. Kjeldahl method for determination of nitrogen content
GOST EN 15560-2013 Fertilizers. Determination of total nitrogen in calcium cyanamide nitrate free
GOST 20851.1-1975 Mineral fertilizers. Methods for determination of nitrogen content

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

GB/T 34532-2017 Coking wastewater—Determination of ammonia nitrogen content—Formaldehyde method
GB/T 34500.5-2017 Chemical analysis methods for rare earth residue and waste water—Part 5：Determination of ammonia nitrogen content

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

GB/T 3600-2000 Fertilizers-Determination of ammoniacal nitrogen content-Formaldehyde method
GB/T 3595-2000 Fertilizers-Determination of ammoniacal nitrogen content-Titrimetric method after distillation
GB/T 8570.2-1988 Liquefied anhydrous ammonia--Estimating of ammonia content
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 12492-1990 Determination of cystine content of wool hydrolysates by colorimetry
GB/T 41965-2022 Photography—Processing waste—Determination of total amino nitrogen(microdiffusion Kjeldahl method)
GB/T 41964-2022 Photography—Processing waste—Determination of ammoniacal nitrogen (microdiffusion 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 12210-1990 Determination of ammonia of gas in urban area
GB/T 24101-2009 Limit and determination of 4-aminoazobenzene in dye products
GB/T 8570.2-2010 Determination of liquefied anhydrous ammonia.Part 2:Estimating of ammonia content
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 8570.3-1988 Liquefied anhydrous ammonia--Determination of residue content--Gravimetric method
GB/T 8570.4-1988 Liquefied anhydrous ammonia--Determination of residue content--Titrimetric method
GB/T 7717.16-1994 Acrylonitrile for industrial use-Determination of content of ammonia-Titrimetrie method
GB/T 12292-1990 Juice of fruits and vegetables--Determination of free amino acid
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 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 2441.1-2001 Determination of urea-Determination of total nitrogen content
GB/T 14605-1993 Determination of trace argon, nitrogen and krypton inoxygen. Gas chromatographic method
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 12684.7-1990 Boric acid for industrial use--Determination of ammonia content
GB/T 17674-1999 Determination of nitrogen in petroleum and petroleum products by chemiluminescence method
GB/T 12491-1990 Determination of systine acid content of wool hydrolysates by paper electrophoresis and colorimetry
GB/T 23835.12-2009 Lithium perchlorate anhydrous.Part 12:Determination of total nitrogen content
GB/T 8570.6-1988 Liquefied anhydrous ammonia--Determination of oil content--Gravimetric and infra-red methods
GB/T 9823-1988 Method for determination of total nitrogen content in oilseed residues
GB/T 22313-2008 Determination of water content of polyols used in plastics for polyurethane production

FI-SFS, Determination of ammonia 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

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

DIN CEN/TS 15558:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch; German version CEN/TS 15558:2007
DIN CEN/TS 15559:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd; German version CEN/TS 15559:2007
DIN CEN/TS 15750:2008 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version CEN/TS 15750:2008
DIN CEN/TS 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 EN 15750:2010-02 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version EN 15750:2009
DIN EN 15561:2021 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German and English version prEN 15561:2021
DIN EN 15561:2021-12 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German and English version prEN 15561:2021 / Note: Date of issue 2021-11-05*Intended as replacement for DIN EN 15561 (2009-06).
DIN EN 15561:2009-06 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version EN 15561:2009 / Note: To be replaced by DIN EN 15561 (2021-12).
DIN EN 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 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; English version of DIN EN 15561:2009-06
DIN EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen; English version of DIN EN 15604:2009-06
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 EN 15560:2009-06 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German version EN 15560:2009 / Note: To be replaced by DIN EN 15560 (2021-12).
DIN EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content (ISO 8968-5:2001); German version EN ISO 8968-5:2001
DIN EN ISO 11905-1:1998 Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate (ISO 11905-1:1997); German version EN ISO 11905-1:1998
DIN EN 15560:2023-10 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German version EN 15560:2023
DIN CEN/TS 15561:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version CEN/TS 15561:2007
DIN 51722-1:1990-07 Testing of solid fuels; determination of nitrogen content; semi-micro Kjeldahl method
DIN 54286:1975 Testing of textiles; determination of the cysteic acid content in wool hydrolysates
DIN EN 15560:2021-12 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German and English version prEN 15560:2021 / Note: Date of issue 2021-11-05*Intended as replacement for DIN EN 15560 (2009-06).
DIN EN 15561:2023-10 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version EN 15561:2023
DIN EN 1141:1994-12 Fruit and vegetable juices - Spectrometric determination of proline content; German version EN 1141:1994
DIN EN ISO 20483:2014-03 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2013); German version EN ISO 20483:2013
DIN EN 15560:2021 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German and English version prEN 15560:2021
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 EN ISO 4945:2010 Steel - Determination of nitrogen content - Spectrophotometric method (ISO 4945:1977); German version EN ISO 4945:2009
DIN EN ISO 5983-1 Berichtigung 1:2009-07 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005); German version EN ISO 5983-1:2005, Corrigendum to DIN EN ISO 5983-1:2005-10; German version EN ISO 5983-1:20...
DIN EN ISO 5983-1:2005-10 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005); German version EN ISO 5983-1:2005

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

BS EN 15558:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch
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 15559:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
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
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 15604:2009 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 EN 15560:2023 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
BS EN ISO 9702:1997 Plastics - Amine epoxide hardeners - Determination of primary, secondary and tertiary amine group nitrogen content
DD CEN/TS 15561:2007 Fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates
BS EN 15561:2023 Inorganic fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates
BS EN ISO 8968-5:2002 Milk. Determination of nitrogen content. Determination of protein-nitrogen content
BS DD CEN/TS 15478:2006 Fertilizers - Determination of total nitrogen in urea
21/30442090 DC BS EN 15561. Fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates
BS EN ISO 8968-4:2002 Milk. Determination of nitrogen content. Determination of non-protein nitrogen content
BS ISO 6853:2002 Photography - Processing waste - Determination of ammoniacal nitrogen (microdiffusion method)
BS 4267-1:1988 Ammonium nitrate - Method for determination of ammoniacal nitrogen content
DD ENV 12260-1996 Water quality. Determination of nitrogen. Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
BS 5551-4.1.4:1984 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide (titrimetric method)
BS 4651-2:1987 Ammonia solution. Method for determination of ammonia content
BS DD CEN/TS 15750:2009 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 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 ISO 6851:2002 Photography - Processing waste - Determination of total amino nitrogen (microdiffusion Kjeldahl method)
BS 5551 SubSec.4.1.2:1982 Fertilizers. Chemical analysis. Determination of nitrogen. Determination of ammoniacal nitrogen, titrimetric method after distillation
BS EN ISO 17234-2:2011 Leather. Chemical tests for the determination of certain azo colorants in dyed leathers. Determination of 4-aminoazobenzene
BS EN 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl method
DD CEN/TS 15560:2007 Fertilizers. Determination of total nitrogen in calcium cyanamide nitrate free
21/30442087 DC BS EN 15560. Fertilizers. Determination of total nitrogen in calcium cyanamide nitrate free
BS 5551 SubSec.4.1.4:1984 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide (titrimetric 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
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 ISO 4945:2010 Steel. Determination of nitrogen content. Spectrophotometric method
BS EN ISO 4945:2009 Steel - Determination of nitrogen content - Spectrophotometric method

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

GB 3595-1983 Determination of ammonia nitrogen content in fertilizers Titration method after distillation
GB 8570.2-1988 Determination of ammonia content in liquid anhydrous ammonia
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 8572-1988 Determination of total nitrogen content in compound fertilizer
SC/T 9444-2023 Determination of ammonia nitrogen in aquaculture water by gas phase molecular absorption spectrometry
NY/T 1975-2010 Water-soluble fertilizers.Determination of amino-acids content
GB 8570.3-1988 Gravimetric method for determination of residue content of liquid anhydrous ammonia
GB 8570.4-1988 volumetric method for determination of residue content of liquid anhydrous ammonia
NY/T 2542-2014 Fertilizers.Determination of total nitrogen content
244药典三部-2020 Content Determination Method 3123 Determination of Glycine Content in Human Immunoglobulin
GB 12292-1990 Determination of free amino acid content in fruit and vegetable juice
NY/T 2878-2015 Determination of Polyaspartic Acid Content in Water Soluble Fertilizer
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
217药典四部-2015 3100 Content Determination Method 3123 Determination Method of Glycine Content in Human Immunoglobulin
205药典四部-2020 3100 Content Determination Method 3123 Determination Method of Glycine Content in Human Immunoglobulin
GB 10511-1989 Determination of total nitrogen content in nitrophosphate fertilizers Titration after distillation
NY/T 1116-2014 Fertilizers.Determination of nitrate nitrogen, ammonium nitrogen, amide nitrogen contents
225药典三部-2015 Content Determination Method 3123 General Rules for Determination of Glycine Content in Human Immunoglobulin 62
NY/T 1116-2006 Fertilizers-Determination of nitrate nitrogen content.UItraviolet spectro-photometric method
NY/T 2794-2015 Determination of amino acids content in peanut.Near-infrared method
GB 8570.6-1988 Determination of the content of liquid anhydrous ammonia oil by gravimetric and infrared spectroscopic methods
GB/T 42957-2023 Determination of lysine, methionine and threonine content in amino acid products and additive premixed feed

PT-IPQ, Determination of ammonia nitrogen content in water

E 211-1967
NP EN 12135-2000 Fruit and vegetable juices Determination of nitrogen content Kjeldahl method

GOSTR, Determination of ammonia nitrogen content in water

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), Determination of ammonia nitrogen content in water

PD CEN/TS 15750:2008 Fertilizers - Determination of different forms of nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
EN 15750:2009 Fertilizers - Determination of total 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
EN 15560:2023 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
EN 15561:2023 Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
EN ISO 8968-5:2001 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content (ISO 8968-5:2001)
EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
EN ISO 17234-2:2011 Leather - Chemical tests for the determination of certain azo colorants in dyed leathers - Part 2: Determination of 4-aminoazobenzene (ISO 17234-2:2011)
EN ISO 13904:2016 Animal feeding stuffs - Determination of tryptophan content
FprCEN/TS 17762-2021 Inorganic fertilizers - Determination of the copper content in ammonium nitrate fertilizers of high nitrogen content
EN 1243:2011 Adhesives - Determination of free formaldehyde in amino and amidoformaldehyde condensates
EN ISO 8968-4:2016 Milk and milk products - Determination of nitrogen content - Part 4: Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
EN 1141:1994 Fruit and vegetable juices - Spectrometric determination of proline content
EN ISO 4945:2009 Steel - Determination of nitrogen content - Spectrophotometric method (ISO 4945:1977)

YU-JUS, Determination of ammonia nitrogen content in water

JUS H.B8.285-1983 Fertilizers. Determination of content amoniac-nitrogen. Volumetric method
JUS E.Z8.017-1993 Soups,broaths,sauces and seasonings -Determination of the α-amino nitrogen content
JUS H.B8.637-1981 Sulphuric acid for industrial use. Determination of ammoniacal nitrogen content. Spectrophotometric method
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.G8.130-1984 Reagents. Ammonia solution. Determination of iron content. 1,10—Phenanthrolinespectrophotometric method
JUS H.G8.447-1990 Reagents. Zine sulphate heptahydrate. Determination of total nitrogen content. Colorimetric method

Professional Standard - Environmental Protection, Determination of ammonia nitrogen content in water

HJ 537-2009 Water quality.Determination of ammonia nitrogen.Distillation-neutralization titration
HJ 536-2009 Water quality.Determination of ammonia nitrogen.Salicylic acid spectrophotometry
HJ/T 195-2005 Water quality - Determination of ammonia-nitrogen Gas-phase molecular absorption spectrometry
HJ 535-2009 Water quality.Determination of ammonia nitrogen.Nessler's reagent spectrophotometry
HJ 665-2013 Water quality.Determination of ammonium nitrogen by continuous flow analysis (CFA) and Salicylic acid spectrophotometry
HJ 666-2013 Water quality.Determination of ammonium nitrogen by flow injection analysis (FIA) and Salicylic acid spectrophotometry

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

KS M ISO 5314-2007(2012) Fertilizers－Determination of ammoniacal nitrogen content－Titrimetric method after distillation
KS M ISO 7108:2002 Ammonia solution for industrial use－Determination of ammonia content－Titrimetric method
KS M ISO 7108:2017 Ammonia solution for industrial use — Determination of ammonia content — Titrimetric method
KS D 1811-2003 Methods for determination of nitrogen in iron and steel
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 M ISO 6851:2002 Photography-Processing waste-Determination of total amino nitrogen-Microdiffusion Kjeldahl method
KS M ISO 9702:2002 Plastics－Amine epoxide hardners－Determination of primary, secondary and tertiary amine group nitrogen content
KS M ISO 3332:2012 Ammonium sulphate for industrial use－Determination of ammoniacal nitrogen content－Titrimetric method after distillation
KS M ISO 3332-2017(2022) Ammonium sulphate for industrial use — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
KS M ISO 3332:2017 Ammonium sulphate for industrial use — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
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 M ISO 5314:2007 Fertilizers-Determination of ammoniacal nitrogen content-Titrimetric method after distillation
KS M ISO 5314:2013 Fertilizers－Determination of ammoniacal nitrogen content－Titrimetric method after distillation
KS M ISO 4176-2006(2011) Fertilizers－Determination of nitrate nitrogen content－Nitron gravimetric method
KS M ISO 5397:2002 Leather－Determination of nitrogen content and “hide substance”－Titrimetric method
KS M ISO 7108-2017(2022) Ammonia solution for industrial use — Determination of ammonia content — Titrimetric method
KS M ISO 7408-2007(2012) Fertilizers－Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide－Titrimetric method
KS E ISO 333-2003(2013) Coal－Determination of nitrogen－Semi-micro Kjeldahl method
KS A ISO 9006:2008 Uranium metal and uranium dioxide powder and pellets－Determination of nitrogen content－Method using ammonia-sensing electrode
KS M 3711-2008 Determination of free ammonia in phenol-formaldehyde molding
KS M ISO 7105-2017(2022) Liquefied anhydrous ammonia for industrial use — Determination of water content — Karl Fischer method
KS M 2112-2011 Crude petroleum and petroleum products-Determination of nitrogen content
KS A ISO 9006-2008(2018) Uranium metal and uranium dioxide powder and pellets－Determination of nitrogen content－Method using ammonia-sensing electrode
KS K ISO 2915:2018 Wool－Determination of cysteic acid content of wool hydrolysates by paper electrophoresis and colorimetry
KS M ISO 7408:2007 Fertilizers-Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide-Titrimetric method
KS M ISO 7408:2013 Fertilizers－Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide－Titrimetric method
KS D ISO 4945:2002 Steel－Determination of nitrogen content－Spectrophotometric method
KS I ISO 11732:2008 Water quality－Determination of ammonium nitrogen－Method by flow analysis(CFA and FIA) and spectrometric detection

CZ-CSN, Determination of ammonia nitrogen content in water

CSN 65 4814-1976 Determinaíion of nitrogen oontent in fertilizers
CSN 65 4835-1983 Minerál fertilizers. Determination of ammoniacal nitrogen content by distillating method
CSN 50 0393-1986 Determination of the content of or- ganic nitrogen in páper and paper- board
CSN 56 0020-1987 General directions for the determination f nitrogen by the Kjeldahl method
CSN 70 4243-1981 Glass apparatus by Parnas-Wagner for the determination of nitrogen
CSN 62 3008-1986 Natural raw rubber in blocks. Determination of nitrogen content
CSN 44 1384-1978 Determination of total moisture content in coke
CSN 42 0566 Cast.7-1987 Chemical analysis of manganese. Determination of nitrogen content
CSN 67 0541-1974 Determination of volatile matter content in pigments
CSN 83 0540 Cast.13-1984 Chemical and physical analysis of waste water Determination of organic and total nitrogen
CSN ISO 1871:1994 Agricultural food products-General directions for the determination of nitrogen by the Kjeldahl method

Danish Standards Foundation, Determination of ammonia nitrogen content in water

DS 224:1975 Water analysis. Determination of ammonia-nitrogen
DS/EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
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 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl 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 ISO 8968-4:2002 Milk - Determination of nitrogen content - Part 4: Determination of non-protein nitrogen content
DS/EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
DS/EN ISO 13903:2005 Animal feeding stuffs – Determination of amino acids content
DS/EN 1141:1995 Fruit and vegetable juices - Spectrometric determination of proline content
DS/EN ISO 20483:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method
DS/EN ISO 8968-1:2002 Milk - Determination of nitrogen content - Part 1: Kjeldahl method
DS/EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
DS/EN ISO 4945:2009 Steel - Determination of nitrogen content - Spectrophotometric method
DS/EN ISO 5983-1/AC:2009 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method
DS/EN ISO 5983-1:2005 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method

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

ASTM D1426-98 Standard Test Methods for Ammonia Nitrogen In Water
ASTM D1426-03 Standard Test Methods for Ammonia Nitrogen 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 D5475-93(1997) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM E258-67(2002) Standard Test Method for Total Nitrogen in Organic Materials by Modified Kjeldahl Method
ASTM C1494-01(2007) Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
ASTM C1494-13 Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder

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

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 7108:1985 Ammonia solution for industrial use; Determination of ammonia content; Titrimetric method
ISO 15604:2016 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
ISO 2991:1974 Nitric acid for industrial use; Determination of ammoniacal nitrogen content; Spectrophotometric method
ISO 8968-5:2001 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
ISO 8968-5:2001|IDF 20-5:2001 Determination of milk nitrogen content Part 5: Determination of protein nitrogen content
ISO 3330:1975 Ammonium nitrate for industrial use; Determination of ammoniacal nitrogen content; Titrimetric method after distillation
ISO 3332:1975 Ammonium sulphate for industrial use; Determination of ammoniacal nitrogen content; Titrimetric method after distillation
ISO 8968-4:2001 Milk - Determination of nitrogen content - Part 4: Determination of non-protein-nitrogen content
ISO 8968-4:2001 | IDF 20-4:2001 Milk — Determination of nitrogen content — Part 4: Determination of non-protein-nitrogen content
ISO 8968-5:2001 | IDF 20-5:2001 Milk — Determination of nitrogen content — Part 5: Determination of protein-nitrogen content
ISO 8968-4:2001|IDF 20-4:2001 Determination of milk nitrogen content Part 4: Determination of non-protein nitrogen content
ISO 2913:1975 Wool; Colorimetric determination of cystine plus cysteine in hydrolysates
ISO/FDIS 14897 Plastics — Polyols for use in the production of polyurethanes — Determination of water content
ISO 6853:1987 Photography; Processing waste; Determination of ammoniacal nitrogen content; Microdiffusion method
ISO 5314:1981 Fertilizers; Determination of ammoniacal nitrogen content; Titrimetric method after distillation
ISO 6851:2001 Photography - Processing waste - Determination of total amino nitrogen (microdiffusion Kjeldahl method)
ISO 5397:1984 Leather; Determination of nitrogen content and "hide substance"; Titrimetric method
ISO 7104:1985 Liquefied anhydrous ammonia for industrial use; Determination of water content; Gas chromatographic method
ISO 7105:1985 Liquefied anhydrous ammonia for industrial use; Determination of water content; Karl Fischer method
ISO 2515:1973 Ammonium hydrogen carbonate for industrial use (including foodstuffs); Determination of ammoniacal nitrogen content; Volumetric method after distillation
ISO 2899:1974 Sulphuric acid and oleums for industrial use; Determination of ammoniacal nitrogen content; Spectrophotometric method
ISO 9006:1994 Uranium metal and uranium dioxide powder and pellets - Determination of nitrogen content - Method using ammonia-sensing electrode
ISO 8968-1:2001 | IDF 20-1: 2001 Milk — Determination of nitrogen content — Part 1: Kjeldahl method
ISO 8968-4:2001/Cor 1:2011 Milk - Determination of nitrogen content - Part 4: Determination of non-protein-nitrogen content; Technical Corrigendum 1
ISO 3099:1974 Oilseed residues — Determination of total nitrogen content
ISO 6851:1987 Photography; Processing waste; Determination of total amino nitrogen; Microdiffusion Kjeldahl method
ISO 4945:1977 Steel; Determination of nitrogen content; Spectrophotometric method
ISO 4945:2018 Steel - Determination of nitrogen - Spectrophotometric method
ISO 14897:2002 Plastics - Polyols for use in the production of polyurethane - Determination of water content
ISO 14897:2000 Plastics - Polyols for use in the production of polyurethane - Determination of water content
ISO 14897:2023 Plastics — Polyols for use in the production of polyurethanes — Determination of water content
ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection

Indonesia Standards, Determination of ammonia 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 06-6876-2002 Test methods of ammonia content in water by ion selective electrode
SNI 4146-2013

Japanese Industrial Standards Committee (JISC), Determination of ammonia 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 0099:1983 Methods for determination of ammonia in exhaust gas
JIS K 0099:1998 Methods for determination of ammonia in flue gas
JIS K 0104:2000 Methods for determination of nitrogen oxides in flue gas
JIS K 0099:2004 Methods for determination of ammonia 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

Professional Standard - Urban Construction, Determination of ammonia nitrogen content in water

CJ/T 75-1999 Municipal sewage.Determination of nitrogen(ammonia)
CJ 26.25-1991 Determination of Standard Ammonia Nitrogen in Municipal Sewage Water Quality Inspection Method
CJ/T 3018.6-1993 Leachate.Determination of ammoniacal nitrogen.Distillation and titration method

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

PD CEN/TS 15561:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
PD CEN/TS 15604:2007 Fertilizers - Determination of different forms of nitrogen in the same sample@ containing nitrogen as nitric@ ammoniacal@ urea and cyanamide nitrogen
EN ISO 13904:2005 Animal feeding stuffs Determination of tryptophan content
EN ISO 8968-4:2001 Milk - Determination of Nitrogen Content - Part 4: Determination of Non-Protein Nitrogen Content
PD CEN/TS 15560:2007 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
EN ISO 4945:2018 Steel - Determination of nitrogen - Spectrophotometric method

Lithuanian Standards Office , Determination of ammonia nitrogen content in water

LST EN 15561-2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
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 15750-2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
LST EN ISO 8968-5:2002 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content (ISO 8968-5:2001)
LST EN ISO 8968-4:2002 Milk - Determination of nitrogen content - Part 4: Determination of non-protein nitrogen content (ISO 8968-4:2001)
LST EN 1141-2000 Fruit and vegetable juices - Spectrometric determination of proline content
LST EN 15560-2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
LST EN ISO 20483:2007 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2006)

AENOR, Determination of ammonia nitrogen content in water

UNE-EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates
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-EN 12135:1998 Fruit and vegetable juices - Determination of nitrogen content - Kjeldahl 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 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
UNE-EN ISO 20483:2014 Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2013)

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

YB/T 4582.7-2017 Determination of total nitrogen content of ferrous silicon nitride by neutralization titration method
YB/T 4566.2-2016 Determination of nitrogen content of vanadium iron nitride, distillation and separation-acid-base 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

HU-MSZT, Determination of ammonia nitrogen content in water

PL-PKN, Determination of ammonia nitrogen content in water

PN Z04041-1971 Deferminafion o? ammonia confent in air
PN C87077-1992 Nitrogenous fertilizers. Determination of cooper
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 C04593-1971 Water and waste water Determination of formaldehyde content
PN C04587 ArkusZ02-1973 Water and waste water Tests for sodium Determination of sodium by titrimetric method
PN C04288-12-1987 Technical fats Methods of testing Determination of water content
PN C04568-1971 Water and waste water Determination of methyl alcohol content

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

BS 4267-1:1988(1999) Ammonium nitrate — Part 1 : Method for determination of ammoniacal nitrogen content
BS EN 1141:1995(2000) Method for Determination of proline content of fruit and vegetable juices : Spectrometric method
BS EN ISO 5983-1:2005(2009) Animal feeding stuffs — Determination of nitrogen content and calculation of crude protein content — Part 1 : Kjeldahl method

AR-IRAM, Determination of ammonia nitrogen content in water

TN-INNORPI, Determination of ammonia nitrogen content in water

NT 14.33-1983

NL-NEN, Determination of ammonia 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 6482-1982 Water - Determination of the sum of ammoniacal and organically bound nitrogen according to Kjeldahl after mineralization with selenium
NEN 6481-1983 Water - Determination of the sum of ammoniacal and organically bound nitrogen according to Kjeldahl after mineralization with selenium
NEN 6398-1992 Fruit lemonades - Determination of proline content - Spectrometric method
NEN 3442-1968 Meat and meat products. Determination of nitrogen content
NEN 6494-1984 Water - Enzymatic determination of urea content in swimming water

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

QB/T 5015-2016 The determination of α-amino nitrogen in sugar beet
QB/T 2409-1998 Determination of amino acid content in cosmetics
QB/T 2186-1995 Determination of Liquid Nitrogen in Hydrolyzed Protein by Ammonia Gas Sensitive Electrode

BE-NBN, Determination of ammonia nitrogen content in water

NBN T 91-255-1976 Water analysis methods - Determination of the ammoniacal and organic nitrogen - (Kjeldahl nitrogen)
NBN T 03-069-1979 Ammonium sulphate for industrial use - Determination of ammoniacal nitrogen content - Titrimetric method after distillation
NBN T 03-041-1979 Nitric acid for industrial use - Determination of ammoniacal nitrogen content - Spectrophotometric method
NBN T 91-252-1976 Water analysis methods - Determination of the ammoniacal nitro-gen after preliminary distillation
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 03-096-1988 Ammonia solution for industrial use - Détermination of ammonia content - Titrimetric method
NBN T 03-081-1979 Ammonium hydrogen carbonate for industrial use (including food-stuffs) - Determination of ammoniacal nitrogen content - Titrimetric method after distillation
NBN T 03-093-1988 Liquefied anhydrous ammonia for industrial use - Détermination of water content - Gas chromatographic method
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 03-094-1988 Liquefied anhydrous ammonia for industrial use - Determination of water content - Karl Fischer method
NBN T 95-301-1977 Determination of the nitrogen oxides content of flue gasses -Photometrie method with chromotropic acid
NBN T 03-024-1979 Sulphuric acid and oleum for industrial use - Determination of ammoniacal nitrogen content - Spectrophotometric method
NBN T 91-254-1976 Water analysis methods - Determination of the ammoniacal nitrogen -Direct photometric methodwith sodium phenate
NBN V 21-003-1987 Milk - Determination of nitrogen content - Kjeldahl method

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

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

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

GB/T 24583.3-2019 Vanadium-nitrogen—Determination of nitrogen content—Distillation-neutralization titration method
GB/T 40970-2021 Determination of ammonia in cosmetics—Titration method
GB/T 24101-2018 Limit and determination of 4-aminoazobenzene in dye products
GB/T 17674-2021 Determination of nitrogen in crude oil—Boat-inlet chemiluminescence
GB/T 38395-2019 Coal tar—Determination of sulfur and nitrogen content
GB/T 39144-2020 Test method for magnesium content in gallium nitride materials—Secondary ion mass spectrometry

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

T/NAIA 001-2020 Determination of ammoniacal nitrogen in fermented feed Kjeldahl method
T/NAIA 0169-2022 Water Quality Determination of Ammonia Nitrogen by Ion Chromatography
T/CCAS 008-2019 Analytical methods of the ammonia in fly ash for cement and concrete
T/GXAS 477-2023 Determination of total nitrogen content in sugarcane juice —sulphuric acid titrimetric method
T/CSEE 0289-2022 Electrode method for determination of ammonia content in coal-fired power plant ash
T/GDASE 0009-2020 Determination of the content of carbon, hydrogen, oxygen, nitrogen and sulfur in graphene
T/GDAQ 00006-2022 Determinnation of sulfur amino acids in foods
T/CHES 12-2017 Water Quality Determination of Ammonia Nitrogen Gas Phase Molecular Absorption Spectrometry
T/CPCIF 0168-2021 Rapid detection kits for nitrite，nitrate and ammonia nitrogen in water
T/CHBAS 14-2021 Determination of amino acids content in milk powder High performance liquid chromatography

Professional Standard - Commodity Inspection, Determination of ammonia 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 0464-2003 Quantitative analysis of polyurethane fiber of textile

SE-SIS, Determination of ammonia 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 SS 02 81 01-1992 Nitrogen content of water — Determination with Kjeldahl method after reduction with Devarda's alloy
SIS 02 81 20-1974 Determination of chloride content of water
SIS SS 02 81 21-1983 Determination of the sum of calcium and magnesium in water -Titrimetric method
SIS 02 81 26-1974 Determination of orthophosphate content of water

KR-KS, Determination of ammonia nitrogen content in water

KS M ISO 3332-2017 Ammonium sulphate for industrial use — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
KS K ISO 2915-2018 Wool－Determination of cysteic acid content of wool hydrolysates by paper electrophoresis and colorimetry
KS K ISO 2915-2018(2023) Wool－Determination of cysteic acid content of wool hydrolysates by paper electrophoresis and colorimetry

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

SH/T 1627.3-1996 Determination of ammonia content in industrial acetonitrile
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)

TH-TISI, Determination of ammonia nitrogen content in water

TIS 1771-1999 Ammonium sulphate for industrial use.determination of ammoniacal nitrogen content.titrimetric method after distillation

ZA-SANS, Determination of ammonia nitrogen content in water

SANS 8968-5:2006 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
SANS 8968-4:2006 Milk - Determination of nitrogen content Part 4: Determination of non-protein-nitrogen content
SANS 970:2010 Leather - Determination of nitrogen content and "hide substance" - Titrimetric method

International Dairy Federation (IDF), Determination of ammonia nitrogen content in water

IDF 20-5-2001 Milk - Determination of nitrogen content - Part 5: Determination of protein-nitrogen content
IDF 20-4-2001 Milk - Determination of nitrogen content - Part 4: Determination of non-protein-nitrogen content
IDF 20-1-2001 Milk - Determination of nitrogen content - Part 1: Kjeldahl method

TR-TSE, Determination of ammonia nitrogen content in water

TS 2466-1976 Nitric Acit For Industrial Use Determination of Ammoniacal Nitrogen Content Spectrophotoraetric Method
TS 3244-1978 WOOL - COLORIMETRIC DETERMINATION OP CYSTINE PLUS CYTEINE IN HYDROLYSATES

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

HG/T 2409-1992 Determination of isoamyl ester group content in polyurethane prepolymer

VE-FONDONORMA, Determination of ammonia nitrogen content in water

NORVEN 378

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

NY/T 3039-2016 Determination of polyglutamic acid content in water-soluble fertilizers

Shandong Provincial Standard of the People's Republic of China, Determination of ammonia 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 2094-2012 Determination of Hydroxyproline Content in Aquatic Products by High Performance Liquid Chromatography

ES-AENOR, Determination of ammonia nitrogen content in water

UNE 59-018-1986

ES-UNE, Determination of ammonia 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 1141:1995 FRUIT AND VEGETABLE JUICES. SPECTROMETRIC DETERMINATION OF PROLINE CONTENT.
UNE-EN ISO 5983-1:2007/AC:2009 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005/Cor 1:2008)

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

ANSI/PIMA IT4.48-1998 Photography (Processing) - Effluents - Determination of Ammoniacal Nitrogen Content - Microdiffusion Method
ANSI/PIMA IT4.47-1998 Photography (Processing) - Effluents - Determination of Total Amino Nitrogen - Microdiffusion Kjeldahl Method

AT-ON, Determination of ammonia 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

BR-ABNT, Determination of ammonia nitrogen content in water

ABNT MB-1133-1979

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

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

BG-BDS, Determination of ammonia nitrogen content in water

BGC ISO 5983:2001 Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Kjeldahl method

Anhui Provincial Standard of the People's Republic of China, Determination of ammonia 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

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

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

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

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

中华人民共和国环境保护部, Determination of ammonia nitrogen content in water

GB 13580.11-1992 Determination of ammonium in the wet precipitation

Professional Standard - Electricity, Determination of ammonia nitrogen content in water

DL/T 1494-2016 Determination of ammonia content in fly ash of coal-fired power plant.Ion chromatography method
DL/T 1984-2019 Determination of Ammonia Content in Coal-fired Boiler Fly Ash by Spectrophotometry

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

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

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

HB 5220.23-1982 Determination of nitrogen content in superalloys
HB 5297.17-1984 Determination of Nitrogen in Titanium and Titanium Alloys by Steam Distillation