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How to Measure Nitrogen Content

How to Measure Nitrogen Content, Total:492 items.

In the international standard classification, How to Measure Nitrogen Content involves: Plastics, Food products in general, Soil quality. Pedology, Fertilizers, Test conditions and procedures in general, Coals, Water quality, Analytical chemistry, Farming and forestry, Testing of metals, Milk and milk products, Conducting materials, Non-ferrous metals, TESTING, Equipment for entertainment, Paints and varnishes, Ferroalloys, Metalliferous minerals, Fuels, Data storage devices, Ceramics, Environmental protection, General methods of tests and analysis for food products, Pulps, Powder metallurgy, Semiconducting materials, Medical equipment, Products of the chemical industry, Ferrous metals, Inorganic chemicals, Wood-based panels, Fruits. Vegetables, Laboratory medicine, Wastes, Construction materials, Lubricants, industrial oils and related products, Information sciences. Publishing, Iron and steel products, Spices and condiments. Food additives, Nuclear energy engineering, Optics and optical measurements, Waxes, bituminous materials and other petroleum products, Pipeline components and pipelines, Meat, meat products and other animal produce, Non-metalliferous minerals.

Korean Agency for Technology and Standards (KATS), How to Measure Nitrogen Content

• KS M 3826-1993(1999) DETERMINATION OF CHLORINE IN CHLORINE-CONTAINING POLYMERS, COPOLYMERS AND THEIR COMPOUNDS
• KS I ISO 13878:2009 Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
• KS I ISO 13878-2009(2019) Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
• KS M ISO 8603:2007 Solid fertilizers－Determination of urea nitrogen content－Gravimetric method using xanthydrol
• KS M ISO 8603:2012 Solid fertilizers-Determination of urea nitrogen content-Gravimetric method using xanthydrol
• KS M 1925-2009 Urea for industrial use－Determination of iron content－2,2′-bipyridyl photometric method
• KS M 1922-2002(2007) Urea for industrial use－Determination of nitrogen content－Titrimetric method after distillation
• KS M 1922-2009 Urea for industrial use－Determination of nitrogen content－Titrimetric method after distillation
• KS D 1938-2003(2013) Determination of element content in zinc and zinc alloy
• KS D ISO 3110:2002 Copper alloys－Determination of aluminium as alloying element－Volumetric method
• KS D ISO 3111:2002 Copper alloys－Determination of tin as alloying element－Volumetric method
• KS D ISO 11438-3:2012 Ferronickel-Determination of trace-element content by electrothermal atomic absorption spectrometric method-Part 3:Determination of antimony content
• KS D ISO 11438-5:2012 Ferronickel-Determination of trace-element content by electrothermal atomic absorption spectrometric method-Part 5:Determination of tellurium content
• KS D ISO 11438-7:2012 Ferronickel-Determination of trace-element content by electrothermal atomic absorption spectrometric method-Part 7:Determination of silver content
• KS D ISO 11438-2:2012 Ferronickel-Determination of trace-element content by electrothermal atomic absorption spectrometric method-Part 2:Determination of lead content
• KS D ISO 11438-4:2012 Ferronickel-Determination of trace-element content by electrothermal atomic absorption spectrometric method-Part 4:Determination of tin content
• KS D ISO 11438-6:2012 Ferronickel-Determination of trace-element content by electrothermal atomic absorption spectrometric method-Part 6:Determination of thallium content
• KS D ISO 11438-8:2012 Ferronickel-Determination of trace-element content by electrothermal atomic absorption spectrometric method-Part 8:Determination of indium content
• KS D ISO 11438-2:2016 Ferronickel－Determination of trace-element content by electrothermal atomic absorption spectrometric method－Part 2：Determination of lead content
• KS D ISO 11438-3:2016 Ferronickel－Determination of trace-element content by electrothermal atomic absorption spectrometric method－Part 3：Determination of antimony content
• KS D ISO 11438-4:2016 Ferronickel－Determination of trace-element content by electrothermal atomic absorption spectrometric method－Part 4：Determination of tin content
• KS D ISO 11438-5:2016 Ferronickel－Determination of trace-element content by electrothermal atomic absorption spectrometric method－Part 5：Determination of tellurium content
• KS D ISO 11438-6:2016 Ferronickel－Determination of trace-element content by electrothermal atomic absorption spectrometric method－Part 6：Determination of thallium content
• KS D ISO 11438-7:2016 Ferronickel－Determination of trace-element content by electrothermal atomic absorption spectrometric method－Part 7：Determination of silver content
• KS D ISO 11438-8:2016 Ferronickel－Determination of trace-element content by electrothermal atomic absorption spectrometric method－Part 8：Determination of indium content
• KS I ISO 14869-2:2019 Soil quality — Dissolution for the determination of total element content ― Part 2: Dissolution by alkaline fusion
• KS D ISO 11437-2:2012 Nickel alloys-Determination of trace-element content by electrothermal atomic absorption spectrometric method-Part 2:Determination of lead content
• KS D ISO 11437-2-2012(2017) Nickel alloys－Determination of trace-element content by electrothermal atomic absorption spectrometric method－Part 2：Determination of lead content
• KS D ISO 2355:2002 Magnesium and its alloys－Determination of rare earths－Gravimetric method
• KS I ISO 14869-2:2009 Soil quality－Dissolution for the determination of total element content－Part 2：Dissolution by alkaline fusion
• KS D ISO 4883-2003(2018) Hardmetals－Determination of contents of metallic elements by X－ray fluorescence－Solution method
• KS D ISO 4503-2003(2018) Hardmetals－Determination of contents of metallic elements by X-ray fluorescence－Fusion method
• KS D ISO 11437-2-2012(2022) Nickel alloys－Determination of trace-element content by electrothermal atomic absorption spectrometric method－Part 2：Determination of lead content
• KS D ISO 4503:2003 Hardmetals-Determination of contents of metallic elements by X-ray fluorescence-Fusion method
• KS D ISO 4883:2003 Hardmetals－Determination of contents of metallic elements by X－ray fluorescence－Solution method
• KS I ISO 14869-1:2007 Soil quality－Dissolution for the determination of total element content－Part 1：Dissolution with hydrofluoric and perchloric acids
• KS D 1702-2015(2020) Platium－Determination of trace-element content by inductively coupled plasma spectrometric analysis－Matrix matching method
• KS I ISO 14869-1:2018 Soil quality — Dissolution for the determination of total element content — Part 1: Dissolution with hydrofluoric and perchloric acids
• KS D ISO 11437-1-2012(2022) Nickel alloys－Determination of trace-element content by electrothermal atomic absorption spectrometric method－Part 1：General requirements and sample dissolution
• KS D ISO 11437-1-2012(2017) Nickel alloys－Determination of trace-element content by electrothermal atomic absorption spectrometric method－Part 1：General requirements and sample dissolution

CO-ICONTEC, How to Measure Nitrogen Content

• ICONTEC 1556-1980
• ICONTEC 1708-1981

International Organization for Standardization (ISO), How to Measure Nitrogen Content

• ISO/TR 23304:2021 Food products - Guidance on how to express vitamins and their vitamers content
• ISO 8603:1993 Solid fertilizers; determination of urea nitrogen content; gravimetric method using xanthydrol
• ISO 3110:1975 Copper alloys; Determination of aluminium as alloying element; Volumetric method
• ISO 3111:1975 Copper alloys; Determination of tin as alloying element; Volumetric method
• ISO 1592:1977 Urea for industrial use; Determination of nitrogen content; Titrimetric method after distillation
• ISO 11438-6:1993 Ferronickel; determination of trace-element content by electrothermal atomic absorption spectrometric method; part 6: determination of thallium content
• ISO 11438-7:1993 Ferronickel; determination of trace-element content by electrothermal atomic absorption spectrometric method; part 7: determination of silver content
• ISO 11438-8:1993 Ferronickel; determination of trace-element content by electrothermal atomic absorption spectrometric method; part 8: determination of indium content
• ISO 11438-2:1993 Ferronickel; determination of trace-element content by electrothermal atomic absorption spectrometric method; part 2: determination of lead content
• ISO 11438-4:1993 Ferronickel; determination of trace-element content by electrothermal atomic absorption spectrometric method; part 4: determination of tin content
• ISO 11438-5:1993 Ferronickel; determination of trace-element content by electrothermal atomic absorption spectrometric method; part 5: determination of tellurium content
• ISO 11438-3:1993 Ferronickel; determination of trace-element content by electrothermal atomic absorption spectrometric method; part 3: determination of antimony content
• ISO 11437-2:1994 Nickel alloys - Determination of trace-element content by electrothermal atomic absorption spectrometric method - Part 2: Determination of lead content
• ISO 14869-2:2002 Soil quality - Dissolution for the determination of total element content - Part 2: Dissolution by alkaline fusion
• ISO 4883:1978 Hardmetals; Determination of contents of metallic elements by X-ray fluorescence; Solution method
• ISO 4503:1978 Hardmetals; Determination of contents of metallic elements by X-ray fluorescense; Fusion method
• ISO 14869-1:2001 Soil quality - Dissolution for the determination of total element content - Part 1: Dissolution with hydrofluoric and perchloric acids

Association Francaise de Normalisation, How to Measure Nitrogen Content

• NF X31-418*NF ISO 13878:1998 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").
• FD V03-182*FD ISO/TR 23304:2021 Food products - Guidance on how to express vitamins and their vitamers content
• NF ISO 13878:1998 Qualité du sol - Détermination de la teneur totale en azote par combustion sèche ("analyse élémentaire")
• NF U42-416*NF EN 15478:2009 Fertilizers - Determination of total nitrogen in urea.
• NF EN 15962:2011 Engrais - Dosage de la teneur en oligo-élément complexé et de la fraction complexée des oligo-éléments
• XP CEN/TS 17786-2:2022 Engrais inorganiques à base d'oligo-éléments - Détermination de la teneur en oligo-éléments chélatés et de la fraction chélatée des oligo-éléments - Partie 2 : dosage de l'EDTA, du DTPA, du HEEDTA, de l'IDHA ou de l'EDDS
• 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
• XP CEN/TS 17788:2022 Engrais organo-minéraux - Détermination de la fraction d'oligo-éléments complexés
• XP CEN/TS 17786-1:2022 Engrais inorganiques à base d'oligo-éléments - Détermination de la teneur en oligo-éléments chélatés et de la fraction chélatée des oligo-éléments - Partie 1 : traitement avec une résine échangeuse de cations
• NF EN 13366:2001 Engrais - Traitement avec une résine échangeuse d'ions cationique pour la détermination de la teneur en oligo-éléments chélatés et de la fraction chélatée des oligo-éléments
• XP CEN/TS 17790:2022 Engrais organo-minéraux - Détermination de la teneur en oligo-éléments chélatés et de la fraction chélatée d'oligo-éléments par traitement avec une résine échangeuse de cations
• XP U42-764*XP CEN/TS 17790:2022 Organo-mineral fertilizers - Determination of the chelated micronutrient content and the chelated fraction of micronutrients by treatment with a cation exchange resin
• NF X85-011*NF EN 17351:2020 Bio-based products - Determination of the oxygen content using an elemental analyser
• XP X30-489:2013 Caractérisation des déchets - Détermination de la teneur en éléments et substances des déchets
• NF EN 17351:2020 Produits biosourcés - Détermination de la teneur en oxygène à l'aide d'un analyseur élémentaire
• NF ISO 14869-2:2002 Qualité du sol - Mise en solution pour la détermination des teneurs élémentaires totales - Partie 2 : mise en solution par fusion alcaline
• NF EN 933-7:1998 Essais pour déterminer les propriétés géométriques des granulats - Partie 7 : détermination de la teneur en éléments coquilliers - Pourcentage des coquilles dans les gravillons
• XP CEN/TS 17783:2022 Fertilisants - Détermination de la stabilité des fertilisants contenant des oligo-éléments complexés
• NF ISO 14869-1:2001 Qualité du sol - Mise en solution pour la détermination des teneurs élémentaires totales - Partie 1 : mise en solution par l'acide fluorhydrique et l'acide perchlorique
• NF A06-902*NF EN 12938:2000 Methods for the analysis of pewter - Determination of alloying and impurity element contents by atomic spectrometry.
• NF X31-409*NF ISO 10694:1995 Soil quality. Determination of organic and total carbon after dry combustion (elementary analysis).
• NF V03-098*NF EN 15111:2007 Foodstuffs - Determination of trace elements - Determination of iodine by ICP-MS (inductively coupled plasma mass spectrometry).
• NF X34-224*NF EN 15410:2011 Solid recovered fuels - Method for the determination of the content of major elements (Al, Ca, Fe, K, Mg, Na, P, Si, Ti).
• NF V03-064*NF EN 15763:2010 Foodstuffs - Determination of trace elements - Determination of arsenic, cadmium, mercury and lead in foodstuffs by inductively coupled plasma mass spectrometry (ICP-MS) after pressure digestion.
• NF EN ISO 16424:2018 Énergie nucléaire - Évaluation de l'homogénéité de la distribution du Gd dans les mélanges de combustibles au gadolinium et détermination de la teneur en Gd2O3 dans les pastilles combustibles au gadolinium par mesurage des éléments uranium e...
• NF X31-428-2*NF ISO 14869-2:2002 Soil quality - Dissolution for the determination of total element content - Part 2 : dissolution by alkaline fusion.
• NF A95-490*NF EN 24883:1993 Hardmetals. Determination of contents of metallic elements by X-ray fluorescence. Solution method.
• NF X85-008-1*NF EN 16785-1:2016 Bio-based products - Bio-based content - Part 1 : determination of the bio-based content using the radiocarbon analysis and elemental analysis
• NF EN 16785-1:2016 Produits biosourcés - Teneur biosourcée - Partie 1 : détermination de la teneur biosourcée par une analyse au radiocarbone et une analyse élémentaire
• XP CEN/TS 17782:2022 Fertilisants - Détermination de la stabilité des fertilisants contenant des oligo-éléments chélatés à différents pH
• NF V03-088*NF EN 14546:2005 Foodstuffs - Determination of trace elements - Determination of total arsenic by hydride generation atomic absorption spectrometry (HGAAS) after dry ashing
• XP U45-005-2*XP CEN/TS 17701-2:2022 Plant Biostimulants - Determination of specific elements - Part 2 : determination of total content of Cd, Pb, Ni, As, Cr, Cu and Zn
• XP CEN/TS 17701-2:2022 Biostimulants des végétaux - Dosage des éléments spécifiques - Partie 2 : détermination de la teneur totale en Cd, Pb, Ni, As, Cr, Cu et Zn
• NF V32-082*NF ISO 13685:1997 Ginger and ginger oleoresins. Determination of the main pungent components (gingerols and shogaols). Method using high-performance liquid chromatography.
• NF V03-101*NF EN 15505:2008 Foodstuffs - Determination of trace elements - Determination of sodium and magnesium by flame atomic absorption spectrometry (AAS) after microwave digestion.
• NF M60-406:2009 Nuclear energy - Nuclear fuel technology - Determination of plutonium in nitric acid solutions by spectrophotometry.
• NF M60-406*NF EN ISO 9463:2021 Nuclear Energy - Nuclear Fuel Technology - Determination of plutonium in nitric acid solutions by spectrophotometry
• XP CEN/TS 17774:2022 Engrais organiques et organo-minéraux - Détermination de la teneur en éléments spécifiques par ICP-AES après extraction à l'eau
• NF V03-095*NF EN 14627:2005 Foodstuffs - Determination of trace elements - Determination of total arsenic and selenium by hydride generation atomic absorption spectrometry (HGAAS) after pressure digestion.
• XP U42-705*XP CEN/TS 17774:2022 Organic and organo-mineral fertilizers - Determination of the content of specific elements by ICP-AES after extraction by water
• XP CEN/TS 17770:2022 Engrais organiques et organo-minéraux - Détermination de la teneur totale en éléments spécifiques par ICP-AES après digestion à l'eau régale
• NF X34-225*NF EN 15411:2011 Solid recovered fuels - Methods for the determination of the content of trace elements (As, Ba, Be, Cd, Co, Cr, Cu, Hg, Mo, Mn, Ni, Pb, Sb, Se, Tl, V and Zn).
• XP U42-704*XP CEN/TS 17770:2022 Organic and organo-mineral fertilizers - Determination of the total content of specific elements by ICP-AES after digestion by aqua regia
• NF EN 15410:2011 Combustibles solides de récupération - Méthodes de détermination de la teneur en éléments majeurs (Al, Ca, Fe, K, Mg, Na, P, Si et Ti)

RO-ASRO, How to Measure Nitrogen Content

• STAS 7184/2-1985 SOILS Nitrogen content determination
• STAS SR 13209-1994 Chemical fertilizers with trace elements. Determination of zinc content
• STAS 9139/9-1973 VISCOSE FIBRES AND YARNS Determination of elementary sulphur content
• STAS 11359/4-1980 NATIVE SULPHUR ORES AND CONCENTRATES Determination of elementary sulphur content

European Committee for Standardization (CEN), How to Measure Nitrogen Content

• EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
• FprCEN/TS 17790-2021 Organo-mineral fertilizers - Determination of the chelated micronutrient content and the chelated fraction of micronutrients by treatment with a cation exchange resin
• CEN/TS 17943:2023 Characterization of waste - Guidance on the determination of the content of elements and substances in waste
• CEN EN 15505-2008_ Foodstuffs — Determination of trace elements — Determination of sodium and magnesium by flame atomic absorption spectrometry (AAS) after microwave digestion
• EN 16785-1:2015 Bio-based products - Bio-based content - Part 1: Determination of the bio-based content using the radiocarbon analysis and elemental analysis
• EN 13806:2002 Foodstuffs - Determination of trace elements - Determination of mercury by cold-vapour atomic absorption spectrometry (CVAAS) after pressure digestion
• EN 15111:2007 Foodstuffs - Determination of trace elements - Determination of iodine by ICP-MS (inductively coupled plasma mass spectrometry)
• EN 13654-1:2001 Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method
• FprCEN/TS 17701-2-2021 Plant biostimulants - Determination of specific elements - Part 2: Determination of total content of Cd, Pb, Ni, As, Cr, Cu and Zn
• EN 24503:1993 Hardmetals; determination of contents of metallic elements by X-ray fluorescence; fusion method (ISO 4503:1978)
• EN 24883:1993 Hardmetals; determination of contents of metallic elements by X-ray fluorescence; solution method (ISO 4883:1978)
• CEN EN 15517-2008_ Foodstuffs - Determination of trace elements - Determination of inorganic arsenic in seaweed by hydride generation atomic absorption spectrometry (HGAAS) after acid extraction
• FprCEN/TS 17774-2021 Organic and organo-mineral fertilizers - Determination of the content of specific elements by ICP-AES after extraction by water
• EN 14332:2004 Foodstuffs - Determination of trace elements - Determination of arsenic in seafood by graphite furnace atomic absorption spectrometry (GFAAS) after microwave digestion
• FprCEN/TS 17770-2021 Organic and organo-mineral fertilizers - Determination of the total content of specific elements by ICP-AES after digestion by aqua regia

CL-INN, How to Measure Nitrogen Content

• INDITECNOR 21-7ch-1956

German Institute for Standardization, How to Measure Nitrogen Content

• DIN ISO 13878:1998 Soil quality - Determination of total nitrogen content by dry combustion ("elemental analysis") (ISO 13878:1998)
• 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 22022-2:2001 Solid fuels - Determination of contents of trace elements - Part 2: ICP-OES
• DIN 22022-7:2014 Solid fuels - Determination of contents of trace elements - Part 7: ICP-MS
• DIN 22022-2:2001-02 Solid fuels - Determination of contents of trace elements - Part 2: ICP-OES
• DIN 22022-7:2014-07 Solid fuels - Determination of contents of trace elements - Part 7: ICP-MS
• DIN ISO 10694:1996 Soil quality - Determination of organic and total carbon after dry combustion (elementary analysis) (ISO 10694:1995)
• DIN 22022-3:2001 Solid fuels - Determination of trace elements - Part 3: AAS-flame method
• DIN EN 17351:2020 Bio-based products - Determination of the oxygen content using an elemental analyser
• DIN EN 17351:2020-04 Bio-based products - Determination of the oxygen content using an elemental analyser; German version EN 17351:2020
• DIN ISO 14869-2:2003-01 Soil quality - Dissolution for the determination of total element content - Part 2: Dissolution by alkaline fusion (ISO 14869-2:2002)
• DIN ISO 4503:1991 Hardmetals; determination of contents of metallic elements by x-ray fluorescence; fusion method; identical with ISO 4503:1978
• DIN EN 12938:2000-10 Methods for the analysis of pewter - Determination of alloying and impurity element contents by atomic spectrometry (includes AC:2000); German version EN 12938:1999 + AC:2000
• DIN EN 15111:2007 Foodstuffs - Determination of trace elements - Determination of iodine by ICP-MS (inductively coupled plasma mass spectrometry); German version EN 15111:2007
• DIN 19741:2012 Soil quality - Determination of contents of the platinum group elements (platinum, palladium, rhodium) in soils, soil materials and sludges
• DIN 19741:2012-01 Soil quality - Determination of contents of the platinum group elements (platinum, palladium, rhodium) in soils, soil materials and sludges
• DIN ISO 14869-2:2003 Soil quality - Dissolution for the determination of total element content - Part 2: Dissolution by alkaline fusion (ISO 14869-2:2002)
• DIN CEN/TS 15506:2007 Foodstuffs - Determination of trace elements - Determination of tin in fruit and vegetables preserved in cans by flame atomic absorption spectrometry (AAS); German version CEN/TS 15506:2007
• DIN EN 13806:2002 Foodstuffs - Determination of trace elements - Determination of mercury by cold-vapour atomic absorption spectrometry (CVAAS) after pressure digestion; German version EN 13806:2002
• DIN EN 13346:2001 Characterization of sludges - Determination of trace elements and phosphorus - Aqua regia extraction methods; German version EN 13346:2000
• DIN ISO 4883:1991 Hardmetals; determination of contents of metallic elements by X-ray fluorescence; solution method; identical with ISO 4883:1978
• DIN 51391-1:1997 Testing of lubricants - Determination of additive elements - Part 1: Direct determination by atomic absorption spectrometry
• DIN EN 16785-1:2016 Bio-based products - Bio-based content - Part 1: Determination of the bio-based content using the radiocarbon analysis and elemental analysis
• DIN EN 16785-1:2016-03 Bio-based products - Bio-based content - Part 1: Determination of the bio-based content using the radiocarbon analysis and elemental analysis; German version EN 16785-1:2015
• DIN ISO 14869-1:2003-01 Soil quality - Dissolution for the determination of total element content - Part 1: Dissolution with hydrofluoric and perchloric acids (ISO 14869-1:2001)
• DIN EN 17701-2:2023 Plant biostimulants - Determination of specific elements - Part 2: Determination of total content of Cd, Pb, Ni, As, Cr, Cu and Zn; German and English version prEN 17701-2:2023
• DIN CEN/TS 17701-2:2022-06 Plant biostimulants - Determination of specific elements - Part 2: Determination of total content of Cd, Pb, Ni, As, Cr, Cu and Zn; German version CEN/TS 17701-2:2022
• DIN EN 17701-2:2023-04 Plant biostimulants - Determination of specific elements - Part 2: Determination of total content of Cd, Pb, Ni, As, Cr, Cu and Zn; German and English version prEN 17701-2:2023 / Note: Date of issue 2023-03-24*Intended as replacement for DIN CEN/TS 177...
• DIN 51391-2:1994 Testing of lubricants; determination of the content of additive elements; analysis by wavelengthdispersive X-ray spectrometry (XRS)
• DIN CEN/TS 17774:2022-07 Organic and organo-mineral fertilizers - Determination of the content of specific elements by ICP-AES after extraction by water; German version CEN/TS 17774:2022
• DIN 22022-5:2001 Solid fuels - Determination of trace elements - Part 5: Atomic absorption spectrometry applying the electrothermal atomization
• DIN CEN/TS 17770:2022-07 Organic and organo-mineral fertilizers - Determination of the total content of specific elements by ICP-AES after digestion by aqua regia; German version CEN/TS 17770:2022
• DIN EN 15410:2011-11 Solid recovered fuels - Method for the determination of the content of major elements (Al, Ca, Fe, K, Mg, Na, P, Si, Ti); German version EN 15410:2011
• DIN ISO 14869-1:2003 Soil quality - Dissolution for the determination of total element content - Part 1: Dissolution with hydrofluoric and perchloric acids (ISO 14869-1:2001)
• DIN ISO 4503:1991-07 Hardmetals; determination of contents of metallic elements by x-ray fluorescence; fusion method; identical with ISO 4503:1978

VN-TCVN, How to Measure Nitrogen Content

• TCVN 6645-2000 Soil quality.Determination of total nitrogen content by dry combustion ("elemental analysis")
• TCVN 3175-1979 Light petroleum products.Method for the determination of elemental sulphur content
• TCVN 5362-1991 Graphite.Method for the determination of total oxide content of rare earth elements
• TCVN 4426-1987 Sandstone.Method for the determination of total rare-earth elements and thorium oxide contents
• TCVN 6642-2000 Soil quality.Determination of organic and total carbon after dry combustion (elementary analysis)
• TCVN 7370-2-2007 Soil quality.Dissolution for the determination of total element content.Part 2: Dissolution by alkaline fusion
• TCVN 2822-1987 Rare-earth ores.Method for the determination of total oxide of rare earth elements, uranium oxide and thorium oxide contents

Group Standards of the People's Republic of China, How to Measure Nitrogen Content

• T/GDASE 0009-2020 Determination of the content of carbon, hydrogen, oxygen, nitrogen and sulfur in graphene
• T/SPSTS 013-2019 Determination of the carbon, hydrogen, oxygen, nitrogen, and sulfur content of graphene powder materials— Elemental analyzer method
• T/CSTM 00340-2020 Determination of the carbon, hydrogen, oxygen, nitrogen, and sulfur content of graphene powder materials— Elemental analyzer method
• T/NAIA 0139-2022 Diesel engine nitrogen oxide reducing agent urea aqueous solution (AUS 32) Determination of urea content Automatic Kjeldahl method
• T/SDAQI 064-2021 Determination of urea content in diesel engines NOx reduction agent - Aqueous urea solution by refractive index
• T/NAIA 0128-2022 Rapid Determination of Aluminum Hydroxide Determination of Element Content by X-ray Fluorescence Spectroscopic Analysis (Tablet)
• T/SDAS 4-2016 Methods for chemical analysis of high purity gold—Determination of impurity elements contents—Glow discharge mass spectrometry
• T/CNIA 0120-2021 Determination of trace impurity elements in high-purity nitric acid for the electronics industry by inductively coupled plasma mass spectrometry
• T/WSJD 004-2020 Determination of multi-element contents in hair— Inductively coupled plasma atomic emission spectrometry
• T/SSEA 0305-2023 Determination of multi-element content of high alloy steel by spark discharge atomic emission spectrometry (conventional method)
• T/CNIA 0118-2021 Determination of trace impurity elements in high-purity hydrofluoric acid for the electronics industry by inductively coupled plasma mass spectrometry
• T/CST 2-2020 Determination of multi-element content in gold alloy jewelry by laser ablation-inductively coupled plasma mass spectrometry
• T/CASAS 032-2023 Test method for the content of metal elements on the surface of silicon carbide wafer—Inductively coupled plasma mass spectrometry
• T/CSTM 00800-2023 High-speed tool steel-Determination of multi-element contents-Spark discharge atomic emission spectrometric method (routine method)

AENOR, How to Measure Nitrogen Content

• UNE 77325:2003 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").
• UNE 36317-2:1989 Chemical analysis of ferrous materials - Determination of nitrogen (trace mounts) in steel - Spectrophotometric method
• UNE-EN 15410:2012 Solid recovered fuels - Methods for the determination of the content of major elements (Al, Ca, Fe, K, Mg, Na, P, Si, Ti)

国家质量监督检验检疫总局, How to Measure Nitrogen Content

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

PT-IPQ, How to Measure Nitrogen Content

• NP 1233-1976
• NP 1291-1976
• NP 1273-1976
• NP 1353-1976
• NP 1314-1976
• NP 1274-1976
• NP 1183-1976
• NP 1185-1976
• NP 1227-1976
• NP 1351-1976
• NP 2202-1999 Water quality Determination of iron. Spectrometric method using 1,10-phenanthroline
• NP 2280-1988 Alcoholic beverages and spirits Determination of iron content by atomic absorption spectrophotometry
• NP 1159-1976
• NP 1160-1975
• NP 33-1976
• NP 1376-1976
• NP 1347-1991 Sodium hydroxide for industrial use Determination of silica content. Photometric method with molybdate
• NP 1248-1976
• NP 1348-1976
• NP 1375-1991 Sodium hydroxide for industrial use Determina??o of calcium content. Complexometric method with EDTA
• NP 1234-1976
• NP 2441-1988 Alcoholic beverages and spirits Determination of copper content. Colorimetric method. Routine method
• NP 1158-1976
• NP 2443-1988 Alcoholic beverages and spirits Determination of íron content. Colorimetric method. Routine method
• NP EN 12099-2000 Plastics piping systems Polyethylene piping materials and components Determination of volatile content

British Standards Institution (BSI), How to Measure Nitrogen Content

• PD ISO/TR 23304:2021 Food products. Guidance on how to express vitamins and their vitamers content
• BS ISO 11438-5:1993 Ferronickel. Determination of trace-element content by electrothermal atomic absorption spectrometric method - Determination of tellurium content
• BS ISO 11438-6:1993 Ferronickel. Determination of trace-element content by electrothermal atomic absorption spectrometric method - Determination of thallium content
• BS ISO 11438-7:1993 Ferronickel. Determination of trace-element content by electrothermal atomic absorption spectrometric method - Determination of silver content
• BS ISO 11438-8:1993 Ferronickel. Determination of trace-element content by electrothermal atomic absorption spectrometric method - Determination of indium content
• PD CEN/TS 17786-2:2022 Inorganic micronutrient fertilizers. Determination of the chelated micronutrient content and the chelated fraction of micronutrients. Determination of EDTA, DTPA, HEEDTA, IDHA or EDDS
• BS EN 17351:2020 Bio-based products. Determination of the oxygen content using an elemental analyser
• BS EN 13806:2002 Foodstuffs - Determination of trace elements - Determination of mercury by cold-vapour atomic absorption spectrometry (CVAAS) after pressure digestion
• PD CEN/TS 17786-1:2022 Inorganic micronutrient fertilizers. Determination of the chelated micronutrient content and the chelated fraction of micronutrients. Treatment with a cation exchange resin
• BS EN 24503:1993 Hardmetals. Determination of contents of metallic elements by X-ray fluorescence. Fusion method
• 19/30387008 DC BS EN 17351. Bio-based products. Determination of the oxygen content using an elemental analyser
• BS EN 15764:2009 Foodstuffs - Determination of trace elements - Determination of tin by flame and graphite furnace atomic absorption spectrometry (FAAS and GFAAS) after pressure digestion
• BS EN 15764:2010 Foodstuffs. Determination of trace elements. Determination of tin by flame and graphite furnace atomic absorption spectrometry (FAAS and GFAAS) after pressure digestion
• BS 6394-2:1985 Trace elements in milk and milk products - Method for the determination of iron content (reference method)
• DD CEN/TS 15410:2006 Solid recovered fuels — Method for the determination of the content of major elements (Al, Ca, Fe, K, Mg, Na, P, Si, Ti)
• BS EN 15111:2007 Foodstuffs - Determination of trace elements - Determination of iodine by ICP-MS (inductively coupled plasma mass spectrometry)
• BS EN 16785-1:2015 Bio-based products. Bio-based content. Determination of the bio-based content using the radiocarbon analysis and elemental analysis
• BS EN 14546:2005 Foodstuffs - Determination of trace elements - Determination of total arsenic by hydride generation atomic absorption spectrometry (HGAAS) after dry ashing
• BS DD CEN/TS 15111:2005 Foodstuffs - Determination of trace elements - Determination of iodine in dietetic foods by ICP-MS (inductively coupled plasma mass spectrometry)
• BS 3907-10:1969 Methods for the analysis of magnesium and magnesium alloys - Determination of manganese in magnesium alloys containing zirconium, rare earths, thorium and/or silver (photometric method)
• BS DD CEN/TS 15506:2007 Foodstuffs - Determination of trace elements - Determination of tin in fruit and vegetables preserved in cans by flame atomic absorption spectrometry (AAS)
• BS EN 15505:2008 Foodstuffs - Determination of trace elements - Determination of sodium and magnesium by flame atomic absorption spectrometry (AAS) after microwave digestion
• BS EN 12938:2000 Methods for the analysis of pewter. Determination of alloying and impurity element contents by atomic spectrometry
• BS EN 12938:2000(2001) Methods for the analysis of pewter. Determination of alloying and impurity element contents by atomic spectrometry
• PD CEN/TS 17774:2022 Organic and organo-mineral fertilizers. Determination of the content of specific elements by ICP-AES after extraction by water
• BS ISO 14869-2:2002 Soil quality - Dissolution for the determination of total element content - Dissolution by alkaline fusion
• BS EN 24883:1993 Specification for hardmetals. Determination of contents of metallic elements by X-ray fluorescence. Solution method
• BS ISO 14869-3:2017 Soil quality. Dissolution for the determination of total element content. Dissolution with hydrofluoric, hydrochloric and nitric acids using pressurised microwave technique
• BS DD CEN/TS 15410:2006 Solid recovered fuels - Method for the determination of the content of major elements (Al, Ca, Fe, K, Mg, Na, P, Si, Ti)
• PD CEN/TS 17770:2022 Organic and organo-mineral fertilizers. Determination of the total content of specific elements by ICP-AES after digestion by aqua regia
• BS EN 14082:2003 Foodstuffs - Determination of trace elements - Determination of lead, cadmium, zinc, copper, iron and chromium by atomic absorption spectrometry (AAS) after ash drying
• BS EN 14084:2003 Foodstuffs - Determination of trace elements - Determination of lead, cadmium, zinc, copper and iron by atomic absorption spectrometry (AAS) after microwave digestion
• BS EN 14627:2005 Foodstuffs - Determination of trace elements - Determination of total arsenic and selenium by hydride generation atomic absorption spectrometry (HGAAS) after pressure digestion
• BS EN 15410:2011 Solid recovered fuels. Methods for the determination of the content of major elements (Al, Ca, Fe, K, Mg, Na, P, Si, Ti)
• BS EN 14332:2004 Foodstuffs - Determination of trace elements - Determination of arsenic in seafood by graphite furnace atomic absorption spectrometry (GFAAS) after microwave digestion
• BS EN 14083:2003 Foodstuffs - Determination of trace elements - Determination of lead, cadmium, chromium and molybdenum by graphite furnace atomic absorption spectrometry (GFAAS) after pressure digestion

HU-MSZT, How to Measure Nitrogen Content

• MSZ 21452/3-1975
• MSZ 6230/10-1980
• MSZ 10192/1-1970
• MSZ 6230-4.lap-1957
• MSZ 15801/3-1980
• MSZ 6369/13-1979
• MSZ 5116-1970
• MSZ 12000/11.lap-1968
• MSZ 12000/2.lap-1968
• MSZ 18567/7.lap-1966
• MSZ 21 853/20-1976
• MSZ 11748/1.lap-1968
• MSZ 11721-1964
• MSZ 11711-1968
• MSZ 16050/14.lap-1969
• MSZ 16050/3.lap-1969
• MSZ 16050/4.lap-1969
• MSZ 21863-1980
• MSZ 6230-3.lap-1957
• MSZ 5923/3.lap-1969
• MSZ 5924/3.lap-1969
• MSZ 5924/7.lap-1969
• MSZ 5924/9.lap-1969
• MSZ 5922/4.lap-1968
• MSZ 5923/10-1971
• MSZ 5923/4.lap-1969
• MSZ 5923/5.lap-1969
• MSZ 5923/9.lap-1969
• MSZ 5922/2.lap-1968
• MSZ 5924/5.lap-1969
• MSZ 5922/3.lap-1968
• MSZ 5921/3.lap-1968
• MSZ 5924/6.lap-1969

Heilongjiang Provincial Standard of the People's Republic of China, How to Measure Nitrogen Content

• DB23/T 2492-2019 Test method for content of carbon, nitrogen, hydrogen, sulfur and oxygen in graphene materials

CZ-CSN, How to Measure Nitrogen Content

• CSN 65 4843-1983 Fertilizers with microelements. Testing of manganese content
• CSN 65 4844-1983 Fertilizers with microelements. Testing oí molybden?m content
• CSN 65 4841-1983 Fertilizers with microelements. Testing of cobalt content
• CSN 65 4842-1983 Fertilizers with microelements. Testing of copper contfmt.
• CSN 65 4845-1983 Fertilizers wlth microelements. Testlng of zinc content
• CSN 65 4840-1983 Fertilizers with microelements. Testing of boron content

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, How to Measure Nitrogen Content

• GB/T 2441.1-2001 Determination of urea-Determination of total nitrogen content
• GB/T 3598-1983 Fertilizers--Determination of urea nitrogen content--Urease method
• GB/T 42274-2022 Determination of the content and distribution of trace elements (magnesium, gallium) in aluminum nitride materials—Secondary ion mass spectrometry
• GB/T 2441.1-2008 Determination of urea.Part 1:Total nitrogen content
• GB/T 30647-2014 Determination of harmful elements total content of coatings
• GB/T 42490-2023 Soil quality Determination of organic carbon content and carbon isotope ratio, total nitrogen content and nitrogen isotope ratio in soil and biological samples Stable isotope ratio mass spectrometry
• GB/T 23991-2009 Determination of soluble harmful elements content of coatings
• GB/T 43012-2023 Determination of sulfur element and sulfate half-ester content in pulp cellulose nanocrystals
• GB/T 20127.7-2006 Steel and alloy - Determination of trace element contents - Part 7: Determination of lead content by oscillopolarographic method
• GB/T 26050-2010 Hardmetals.Determination of contents of metallic elements by X-ray fluorescence.Fusion method
• GB/T 30905-2014 Inorganic chemicals for industrial use.Determination of element contents.X-ray fluorescence analysis
• GB/T 33042-2016 Determination of lead, cadmium, chromium, mercury in the surface decorated layer of wooden floor
• GB/T 223.79-2007 Iron and steel-Determination of multi-element contents-X-ray fluorescence spectrometry (Routine method)
• GB/T 36590-2018(英文版) Method for chemical analysis of high purity silver—Determination of trace impurity elements contents—Glow discharge mass spectrometry
• GB/T 20127.6-2006 Steel and alloy - Determination of trace element contents - Part 6: Determination of germanium content by gallic acid oscillopolarographic method
• GB/T 20127.12-2006 Steel and alloy.Determiantion of trace element contents.Part 12:Determination of zinc content by flame atomic absorption spectrometric method
• GB/T 20127.1-2006 Steel and alloy - Determination of trace element contents - Part 1: Determination of silver content by graphite furnace atomic absorption spectrometric method
• GB/T 20127.4-2006 Steel and alloy.Determination of trace element contents.Part 4:Determination of copper content by graphite furnace atomic absorption spectrometric method
• GB/T 13748.20-2009 Chemical analysis methods of magnesium and magnesium alloys.Part 20:Determination of elements by inductively coupled plasma atomic emission spectrometry
• GB/T 36164-2018 High alloy steel.Determination of multi-element contents.X-ray fluorescence spectrometry (routine method)
• GB/T 20127.5-2006 Steel and alloy - Determination of trace element contents - Part 5: Determination of gallium content by extraction separation-rhodamine B photometric method
• GB/T 24234-2009 Cast iron.Determination of multi-element contents.Spark dicharge atomic emission spectrometric method(Routine method)
• GB/T 20127.2-2006 Steel and alloy - Determination of trace element contents - Part 2: Determination of arsenic content by hydride generation-atomic fluorescence spectrometric method
• GB/T 20127.8-2006 Steel and alloy - Determination of trace element contents - Part 8: Determination of antimony content by hydride generation-atomic fluorescence spectrometric method
• GB/T 20127.10-2006 Steel and alloy.Determination of trace element contents.Part 10: Determination of selenium content by hydride generation-atomic fluorescence spectrometric method
• GB/T 6987.24-2001 Aluminium and aluminium alloys--Determination of the cerium subgroup of rare earth elements content--Tribromoarsenazo spectrophotometric method
• GB/T 11170-2008 Stainless steel .Determination of multi-element contents.Spark discharge atomic emission spectrometric method (Routine method)
• GB/T 20127.9-2006 Steel and alloy - Determination of trace element contents - Part 9: Determination of scandium content by inductively coupled plasma atomic emission spectrometric method
• GB/T 20127.11-2006 Steel and alloy - Determination of trace element contents - Part 11: Determination of indium and thallium contents by inductively coupled plasma-mass spectrometric method
• GB/T 20127.13-2006 Steel and alloy - Determination of trace element contents - Part 13: Determination of tin content by iodide extraction-phenylfluorone photometric method
• GB/T 4336-2016 Carbon and low-alloy steel.Determination of multi-element contents.Spark discharge atomic emission spectrometric method (routine method)
• GB/T 22368-2008 Low-alloy steel.Determination of multi-element contents.Glow discharge optical emission spectrometry(Routine method)
• GB/T 26310.2-2010 Carbonaceous materials for use in the production of aluminium.Calcined coke.Part 2: Determination of trace elements content.Flame atomic absorption spectroscopy
• GB/T 20125-2006 Low-alloy steel.Determination of multi-element contents.Inductively coupled plasma atomic emission spectrometric method

Professional Standard - Commodity Inspection, How to Measure Nitrogen Content

• 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 3005-2011 Test method for instrumental determination of carbon,hydrogen,nitrogen and sulfur in organic chemicals
• SN/T 3128-2012 Determination of oxygen element in organic chemicals.Elemental analyzer method
• SN/T 3810-2014 Determination of nitrogen content in urea and ammonium sulphate.X-ray fluorescence spectrometry
• SN/T 2792-2011 Determination of specific element migration and total lead content in coatings for imported and exported furniture
• SN/T 2081-2008 Determination of impurities in alumina.Inductively coupled plasma atomic emission spectrometric method (ICP-AES) with microwave dissolution
• SN/T 3363-2012 Determination of impurity elements in pig lead.Inductively coupled plasma atomic emission spectrometry

BE-NBN, How to Measure Nitrogen Content

• NBN 771-08-1969
• NBN T 04-301-1983 Urea for industrial use - Determination of nitrogen content - Titrimetric raethod after distillation
• NBN T 04-304-1983 Urea for indus trial use - Determination of iron content-2,2'-Bipyridyl photometric method
• NBN P 33-002-1985 Zinc ores -Determination of zinc content

Jiangsu Provincial Standard of the People's Republic of China, How to Measure Nitrogen Content

• DB32/T 3595-2019 Elemental analyzer method for the determination of carbon, hydrogen, nitrogen, sulfur and oxygen content in graphene materials

Professional Standard - Agriculture, How to Measure Nitrogen Content

• GB 3598-1983 Determination of Urea Nitrogen Content in Fertilizers Urease Method
• SN/T 5581-2023 Determination of monomer content in recycled acrylonitrile-butadiene-styrene copolymers by elemental analysis

Professional Standard - Aerospace, How to Measure Nitrogen Content

• QJ 2781A-2004 Determination of the carbon content,the hydrogen content and the nitrogen contene of carbonaceous material
• QJ 2781-1995 Method for Determination of Carbon, Hydrogen and Nitrogen Content in Carbon Materials

RU-GOST R, How to Measure Nitrogen Content

• GOST R 52962-2008 Water. Methods for determination of chromium (VI) and total chromium
• GOST R 55282-2012 Raw milk. The colorimetric method of urea content determination
• GOST 32467-2013 Urea for industrial use. Determination of nitrogen content. Titrimetric method after distillation
• GOST R 55130-2012 Solid recovered fuels. Determination of the content of major elements
• GOST R 51309-1999 Drinking water. Determination of elements content by atomic spectrometry methods
• GOST R 52180-2003 Drinking water. Determination of elements content by stripping voltammetric method
• GOST 25702.10-1983 Raremetallic concentrates. Method for the determination of sum of rare earths
• GOST 31866-2012 Drinking water. Determination of elements content by stripping voltammetric method
• GOST EN 13366-2016 Fertilizers. Treatment with a cation exchange resin for the determination of the chelated micro-nutrient content and of the chelated fraction of micro-nutrients
• GOST 31870-2012 Drinking water. Determination of elements content by atomic spectrometry methods
• 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 26929-1994 Raw material and food-stuffs. Preparation of samples. Decomposition of organic matters for analysis of toxic elements
• GOST 26929-1986 Raw material and food-stuffs. Preparation of samples. Decomposition of organic matters for analysis of toxic elements
• GOST 22001-1987 Reagents and superpure substances. Method for determination of chemical elements impurities by atomic absorption spectrometry
• GOST EN 14083-2013 Foodstuffs. Determination of trace elements. Determination of lead, cadmium, chromium and molybdenum by graphite furnace atomic absorption spectrometry (GFAAS) after pressure digestion

Liaoning Provincial Standard of the People's Republic of China, How to Measure Nitrogen Content

• DB21/T 1320-2004 Determination of Calcium and Magnesium Content in Medium Element Fertilizer

KR-KS, How to Measure Nitrogen Content

• KS M ISO 8603-2007 Solid fertilizers－Determination of urea nitrogen content－Gravimetric method using xanthydrol
• KS I ISO 14869-2-2019 Soil quality — Dissolution for the determination of total element content ― Part 2: Dissolution by alkaline fusion
• KS D ISO 11438-4-2012 Ferronickel－Determination of trace-element content by electrothermal atomic absorption spectrometric method－Part 4：Determination of tin content
• KS D ISO 11438-3-2012 Ferronickel－Determination of trace-element content by electrothermal atomic absorption spectrometric method－Part 3：Determination of antimony content
• KS D ISO 4883-2003(2023) Hardmetals－Determination of contents of metallic elements by X－ray fluorescence－Solution method
• KS D ISO 4503-2003(2023) Hardmetals－Determination of contents of metallic elements by X-ray fluorescence－Fusion method
• KS G ISO 8124-5-2016 Safety of toys ─ Part 5: Determination of total concentration of certain elements in toys
• KS I ISO 14869-1-2018 Soil quality — Dissolution for the determination of total element content — Part 1: Dissolution with hydrofluoric and perchloric acids

Shandong Provincial Standard of the People's Republic of China, How to Measure Nitrogen Content

• DB37/T 2618-2014 Determination of Selenium Content in Microelement Water-Soluble Fertilizer

NL-NEN, How to Measure Nitrogen Content

• 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-ISO 4503:1993 Hardmetals. Determination of contents of metallic elements by X-ray fluorescence. Fusion method (ISO 4503:1978)
• NEN-ISO 4883:1993 Hardmetals. Determination of contents of metallic elements by X-ray fluorescence. Solution method (ISO 4883:1978)

国家市场监督管理总局、中国国家标准化管理委员会, How to Measure Nitrogen Content

• GB/T 37588-2019 Carbon materials—Determination of nitrogen content—Dumas combustion method
• GB/T 38423-2019 Determination of total concentration of certain elements in toys
• GB/T 38904-2020 Methods for elemental analysis of ceramic liquid pigments
• GB/T 6730.81-2020 Iron ores—Determination of multiple trace elements—Inductively coupled plasma mass spectrometric method
• GB/T 40493-2021 Determination of lead, cadmium, chromium and mercury content in the finishing material of wood-based panel
• GB/T 39527-2020 Determination of calcium, aluminium and silicon in the solid surface materials—Method of chemical analysis
• GB/T 39145-2020 Test method for the content of surface metal elements on silicon wafers—Inductively coupled plasma mass spectrometry
• GB/T 36690-2018 Method of determination for 26 elements（copper，nickel，lead，zinc，cadmium，chrome etc.） content in the sludge from industrial waste liquid treatment

工业和信息化部, How to Measure Nitrogen Content

• YS/T 1179.3-2017 Methods for chemical analysis of aluminum slag Part 3: Determination of carbon and nitrogen content Elemental analyzer method
• YS/T 1347-2020 Chemical analysis method of high-purity hafnium Determination of trace impurity element content Glow discharge mass spectrometry
• YS/T 1033-2015 Determination of element content of dry anti-seepage materials by X-ray fluorescence spectrometry
• XB/T 628-2020 Chemical Analysis Methods for High Purity Rare Earth Metals Determination of Trace Element Content Glow Discharge Mass Spectrometry
• YS/T 1288.4-2018 Methods for chemical analysis of high-purity zinc Part 4: Determination of trace element content Glow discharge mass spectrometry
• YB/T 6012-2022 Determination of multi-element content of blast furnace slag by X-ray fluorescence spectrometry (powder tabletting method)
• SJ/T 11555-2015 Determination of metal element content in nitric acid using inductively coupled plasma mass spectrometry
• YS/T 870-2020 Chemical Analysis Methods for Pure Aluminum Determination of Trace Impurity Element Contents Inductively Coupled Plasma Mass Spectrometry
• YS/T 1506-2021 Chemical analysis method of high-purity iridium Determination of impurity element content Glow discharge mass spectrometry
• YS/T 1494-2021 Chemical analysis method for high purity gold Determination of impurity element content Glow discharge mass spectrometry
• YS/T 1504-2021 High purity palladium chemical analysis method Determination of impurity element content Glow discharge mass spectrometry
• YS/T 1530-2022 High purity tin chemical analysis method Determination of impurity element content Glow discharge mass spectrometry
• YS/T 1495-2021 Chemical analysis method for high purity rhodium Determination of impurity element content Glow discharge mass spectrometry
• YS/T 1493-2021 Chemical analysis method for high purity platinum Determination of impurity element content Glow discharge mass spectrometry
• YS/T 1505-2021 Chemical analysis method of high purity ruthenium Determination of impurity element content Glow discharge mass spectrometry
• YS/T 806-2020 Chemical analysis methods for aluminum and aluminum alloys Determination of elemental content X-ray fluorescence spectrometry
• SJ/T 11554-2015 Determination of metal element content in hydrofluoric acid using inductively coupled plasma optical emission spectrometry

Hebei Provincial Standard of the People's Republic of China, How to Measure Nitrogen Content

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

Japanese Industrial Standards Committee (JISC), How to Measure Nitrogen Content

• JIS M 8404:1976 Methods for determination of rare earths in ores
• JIS M 8406:1976 Method for determination of yttrium group rare earths in ores

ES-UNE, How to Measure Nitrogen Content

• UNE-EN 12938:1999 Methods for the analysis of pewter - Determination of alloying and impurity element contents by atomic spectrometry
• UNE-EN 17351:2021 Bio-based products - Determination of the oxygen content using an elemental analyser
• UNE-EN 24503:1993 HARDMETALS. DETERMINATION OF CONTENT OF METALLOC ELEMENTS BY X-RAY FLUORENSCENCE. FUSION METHOD (Endorsed by AENOR in May of 1993.)
• UNE-EN 16785-1:2016 Bio-based products - Bio-based content - Part 1: Determination of the bio-based content using the radiocarbon analysis and elemental analysis
• UNE-EN 24883:1993 HARDMETALS. DETERMINATION OF CONTENTS OF METALLIC ELEMENTS BY X-RAY FLUORESCENCE. SOLUTION METHOD. (Endorsed by AENOR in May of 1993.)
• UNE-CEN/TS 17701-2:2022 Plant biostimulants - Determination of specific elements - Part 2: Determination of total content of Cd, Pb, Ni, As, Cr, Cu and Zn (Endorsed by Asociación Española de Normalización in May of 2022.)
• UNE-CEN/TS 17774:2022 Organic and organo-mineral fertilizers - Determination of the content of specific elements by ICP-AES after extraction by water (Endorsed by Asociación Española de Normalización in May of 2022.)
• UNE-EN 13615:2001 Methods for the analysis of ingot tin - Determination of impurity element contents in tin grades 99,90 % and 99,85 % by atomic spectrometry
• UNE-EN 13615:2001/AC:2002 Methods for the analysis of ingot tin - Determination of impurity element contents in tin grades 99,90 % and 99,85 % by atomic spectrometry (Endorsed by AENOR in February of 2003.)

Danish Standards Foundation, How to Measure Nitrogen Content

• DS/EN 12938/AC:2001 Methods for the analysis of pewter - Determination of alloying and impurity element contents by atomic spectrometry
• DS/EN 12938:2001 Methods for the analysis of pewter - Determination of alloying and impurity element contents by atomic spectrometry
• DS/EN 24883:1993 Hardmetals. Determination of contents of metallic elements by X-ray fluorescence. Solution method
• DS/EN 24503:1993 Hardmetals. Determination of contents of metallic elements by X-ray fluorescence. Fusion method
• DS/EN 24503:1994 Hardmetals - Determination of contents of metallic elements by X-ray fluorescence - Fusion method
• DS/ISO 4503:1994 Hardmetals - Determination of contents of metallic elements by X-ray fluorescence - Fusion method
• DS/EN 24883:1994 Hardmetals - Determination of contents of metallic elements by x-ray fluorescence - Solution method
• DS/ISO 4883:1994 Hardmetals - Determination of contents of metallic elements by x-ray fluorescence - Solution method
• DS/EN 15410:2011 Solid recovered fuels - Methods for the determination of the content of major elements (Al, Ca, Fe, K, Mg, Na, P, Si, Ti)

Lithuanian Standards Office , How to Measure Nitrogen Content

• LST EN 12938-2000 Methods for the analysis of pewter - Determination of alloying and impurity element contents by atomic spectrometry
• LST EN 12938-2000/AC-2003 Methods for the analysis of pewter - Determination of alloying and impurity element contents by atomic spectrometry
• LST EN 10179-2000 Chemical analysis of ferrous materials - Determination of nitrogen (trace mounts) in steel - Spectrophotometric method
• LST EN 24883-2001 Hardmetals - Determination of contents of metallic elements by X-ray fluorescence - Solution method (ISO 4883:1978)
• LST EN 24503-2001 Hardmetals - Determination of contents of metallic elements by X-ray fluorescence - Fusion method (ISO 4503:1978)
• LST EN 15410-2011 Solid recovered fuels - Methods for the determination of the content of major elements (Al, Ca, Fe, K, Mg, Na, P, Si, Ti)

CEN - European Committee for Standardization, How to Measure Nitrogen Content

• PREN 17351-2019 Bio-based products - Determination of the oxygen content using an elemental analyser
• PREN 16785-2014 Bio-based products - Determination of the bio-based content using the radiocarbon analysis and elemental analysis
• PD CEN/TS 15410:2006 Solid recovered fuels - Method for the determination of the content of major elements (Al@ Ca@ Fe@ K@ Mg@ Na@ P@ Si@ Ti)

VE-FONDONORMA, How to Measure Nitrogen Content

• COVENIN 838-1975
• COVENIN 836-1975
• COVENIN 846-1975
• COVENIN 835-1975
• COVENIN 708-1974

PL-PKN, How to Measure Nitrogen Content

• PN H04208-03-1989 Analiza chemiczna ?elazostopów ?elazomolibden Oznaczanie zawarto?ci krzemu
• PN Z04020-02-1991 Air purity protection. Tests for elemental carbon content. Determination of elemental carbon in dust in ambient air (immission) by gas chromatography

Professional Standard - Building Materials, How to Measure Nitrogen Content

• JC/T 2132-2012 Determination of doped and trace elements in barium strontium titanate (BST).Inductively coupled plasma atomic emission spectrometric method

Professional Standard - Chemical Industry, How to Measure Nitrogen Content

• HG 2842-1997 Rare earths content and determination in ammonium bicarbonate-compound fertilizers(tentadtive)
• HG/T 2842-1997 Content and determination of rare earth elements in ammonium bicarbonate compound fertilizer (provisional)

Fujian Provincial Standard of the People's Republic of China, How to Measure Nitrogen Content

• DB35/T 1146-2011 Determination of Impurity Element Content in Silicon Materials by Glow Discharge Mass Spectrometry

Sichuan Provincial Standard of the People's Republic of China, How to Measure Nitrogen Content

• DB51/T 2044-2015 Determination method of impurity element content in high-purity vanadium pentoxide

Professional Standard - Non-ferrous Metal, How to Measure Nitrogen Content

• YS/T 1600-2023 Determination of trace impurity elements in silicon carbide single crystal —Glow discharge mass spectrometry
• YS/T 372.18-2006 Methods for elementary analysis of precious alloy. Determination of gadolinium content. Chlorophosphonazo Ⅲ spectrophotometry
• YS/T 372.19-2006 Methods for elementary analysis of precious alloy. Determination of yttrium content.Chlorophosphonazo Ⅲ spectrophotometry
• YS/T 917-2013 Chemical analysis methods for high purity cadmium.Determination of trace impurity elements content.Glow discharge mass spectrometry
• YS/T 922-2013 Methods for chemical analysis of high purity copper.Determination of trace impurity elements content.Glow discharge mass spectrometry
• YS/T 1599-2023 Method for chemical analysis of high purity zirconium一 Determination of trace impurity elements content一 Glow discharge mass spectrometry
• YS/T 703-2014 Method for chemical analysis of Limstone.Determination of element contents.X-ray fluorescence spectrometric method
• YS/T 229.4-2013 Chemical analysis methods for high purity lead.Part 4:Determination of trace impurity elements content.Glow discharge mass spectrometry
• YS/T 923.2-2013 Methods for chemical analysis of high purity bismuth.Part 2:Determination of trace impurity elements content.Glow discharge mass spectrometry
• YS/T 38.3-2023 Methods for chemical analysis of high purity gallium—Part 3：Determination of trace impurity elements contents—Glow discharge mass spectrometry
• YS/T 1011-2014 Methods for chemical analysis of high purity cobalt.Determination of impurity elements content.Glow discharge mass spectrometry
• YS/T 1012-2014 Methods for chemical analysis of high purity nickel.Determination of trace impurity elements content.Glow discharge mass spectrometry
• YS/T 63.16-2019 Test method for carbonaceous materials used in the production of aluminium——Part 16: Determination of element contents——Wavelength dispersive X-ray fluorescence spectrometric method

Professional Standard - Medicine, How to Measure Nitrogen Content

• YY/T 1507.4-2016 Determination the content of impurity element in the implant for surgery ultra-high molecular weight polyethylene powder.Part 4:Determination of aluminum by ICP-MS

国家食品药品监督管理局, How to Measure Nitrogen Content

• YY/T 1507.3-2016 Determination of impurity elements in ultra-high molecular weight polyethylene powder for surgical implants Part 3 Determination of calcium (Ca) element content by ICP-MS
• YY/T 1507.1-2016 Determination of impurity elements in ultra-high molecular weight polyethylene powder for surgical implants Part 1 Determination of titanium (Ti) element content by ICP-MS
• YY/T 1507.2-2016 Determination of impurity elements in ultra-high molecular weight polyethylene powder for surgical implants Part 2: Determination of chlorine (Cl) element content by ion chromatography

YU-JUS, How to Measure Nitrogen Content

• JUS C.A1.616-1980 Methods for chemical analvsis ofcopper and copper alloys. Votumetric determination ofcontent ofiron as alloving element

Standard Association of Australia （SAA）, How to Measure Nitrogen Content

• AS 1038.10.3:1998(R2013)
• AS 1038.10.5:1993 Coal and coke - Analysis and testing Part 10.5: Coal, coke and fly-ash-Trace elements - Determination of mercury content
• AS 1038.10.3:1998 Coal and coke - Analysis and testing - Determination of trace elements - Coal and coke - Determination of boron content - ICP-AES method
• AS 4205.2:1994 Analysis of urine for trace elements - Determination of copper, cadmium and lead - Flame atomic absorption spectrometric method
• AS 4195.1:1994 Analysis of serum and plasma for trace elements - Determination of aluminium content - Graphite furnace atomic absorption spectrometric method
• AS 1038.10.4:2001 Coal and coke - Analysis and testing - Determination of trace elements - Coal, coke and fly-ash - Determination of fluorine content - Pyrohydrolysis method
• AS 1038.10.5.1:2003 Coal and coke - Analysis and testing - Coal, coke and fly-ash - Trace elements - Determination of mercury content - Tube combustion method
• AS 1038.10.4:2001(R2013)
• AS 1038.10.5.2:2007 Coal and coke - Analysis and testing - Coal and fly-ash - Trace elements - Determination of mercury content - Acid extraction method
• AS 1038.10.5.1:2003(R2013)

American Society for Testing and Materials (ASTM), How to Measure Nitrogen Content

• ASTM E1184-10(2016) Standard Practice for Determination of Elements by Graphite Furnace Atomic Absorption Spectrometry

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会, How to Measure Nitrogen Content

• GB/T 34209-2017 Stainless steel—Determination of multi-element contents—Glow discharge optical emission spectrometry
• GB/T 35996-2018 Rapid determination of eight elements content for phosphate rock and concentrate—X-ray fluorescence spectrometry

Professional Standard - Ferrous Metallurgy, How to Measure Nitrogen Content

• YB/T 5191-2007 High pure graphite materials-Determination of total rare earths content-spectrophotometric
• YB/T 5191-1993 Spectrophotometric determination method of total rare earth element content in high-purity graphite materials
• YB/T 4396-2014 Stainless steel.Determination of multi-element contents.Inductively coupled plasma atomic emission spectrometric method

Military Standard of the People's Republic of China-General Armament Department, How to Measure Nitrogen Content

• GJB 770.201-1989 Test methods for gunpowder analysis Determination of metal element content Atomic absorption spectrometry
• GJB 8781.3-2015 Methods for trace element analysis of superalloys Part 3: Determination of calcium content by flame atomic absorption spectrometry
• GJB 8781.5-2015 Methods for trace element analysis of high temperature alloys Part 5: Determination of copper content by flame atomic absorption spectrometry
• GJB 8781.8-2015 Methods for trace element analysis of high temperature alloys Part 8: Determination of magnesium content by flame atomic absorption spectrometry
• GJB 8781.10-2015 Methods for trace element analysis of high temperature alloys Part 10: Determination of selenium content by graphite furnace atomic absorption spectrometry
• GJB 8781.6-2015 Methods for trace element analysis of high temperature alloys Part 6: Determination of gallium content by graphite furnace atomic absorption spectrometry
• GJB 8781.2-2015 Methods for trace element analysis of high-temperature alloys Part 2: Determination of bismuth content by hydride generation-atomic fluorescence spectrometry
• GJB 8781.9-2015 Methods for trace element analysis of high-temperature alloys Part 9: Determination of antimony content by hydride generation-atomic fluorescence spectrometry
• GJB 8781.12-2015 Methods for trace element analysis of high-temperature alloys Part 12: Determination of tellurium content by hydride generation-atomic fluorescence spectrometry

Taiwan Provincial Standard of the People's Republic of China, How to Measure Nitrogen Content

• CNS 12996-1992 Method of Determination for Contents of Metallic Elements of Hardmetals by X-Ray Fluorescence (Fusion Method)
• CNS 15019-2006 Method of test for determination of additive elements in lubricating oils by inductively coupled plasma atomic emission spectrometry

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

• GJB 5404.3-2005 Analysis methods for trace elements in super alloys Part 3: Determination of calcium conten by flame atomic absorption spectrometric method
• GJB 5404.5-2005 Analysis methods for trace elements in super alloys Part 5: Determination of copper content by flame atomic absorption spectrometric method
• GJB 5404.8-2005 Analysis methods for trace elements in super alloys Part 8: Determination of magnesium content by flame atomic absorption spectrometric method
• GJB 5404.6-2005 Analysis methods for trace elements in super alloys Part 6: Determination of gallium content by graphite furnace atomic absorption spectrometric method
• GJB 5404.10-2005 Analysis methods for trace elements in super alloys Part 10: Determination of selenium content by graphite furnace atomic absorption spectrometric method
• GJB 5404.2-2005 Analysis methods for trace elements in super alloys. Part 2: Determination of bismuth content by hydride generation-atomic fluorescence spectrometric method
• GJB 5404.9-2005 Analysis methods for trace elements in super alloys Part 9: Determination of antimony content by hydride generation atomic fluorescence spectrometric method
• GJB 5404.12-2005 Analysis methods for trace elements in super alloys Part 12: Determination of tellurium content by hydride generation atomic fluorescence spectrometric method

Professional Standard - Energy, How to Measure Nitrogen Content

• NB/SH/T 0929-2016 Determination of Chlorine Content in Lubricating Oil by Inductively Coupled Plasma Emission Spectrometry
• NB/SH/T 0923-2016 Determination of element content in insulating oil by inductively coupled plasma atomic emission spectrometry

国家能源局, How to Measure Nitrogen Content

• SH/T 0929-2016 Determination of chlorine content in lubricating oils by inductively coupled plasma optical emission spectrometry
• SH/T 0923-2016 Determination of elemental content in insulating oil by inductively coupled plasma atomic emission spectrometry

Yunnan Provincial Standard of the People's Republic of China, How to Measure Nitrogen Content

• DB53/T 667-2015 Determination of multielement content in hair by inductively coupled plasma atomic emission spectrometry
• DB53/T 501-2013 Inductively Coupled Plasma Mass Spectrometry for Determination of Trichlorosilane Impurity Element Content in Polysilicon

Gansu Provincial Standard of the People's Republic of China, How to Measure Nitrogen Content

• DB62/T 2760-2017 Determination of multi-element content in cryolite by inductively coupled plasma atomic emission spectrometry
• DB62/T 2763-2017 Determination of multielement content in aluminum fluoride by inductively coupled plasma atomic emission spectrometry

Others:   How to measure the content of silicon element, How to measure nitrogen content in water, How to Measure Nitrogen Content, How to Measure Elemental Content.