Nitrogen and oxygen analysis

Nitrogen and oxygen analysis, Total:167 items.

The international standard classification for "Nitrogen and oxygen analysis" includes: Chemical analysis , Oxides , Chemical analysis of metals , Bases , Titanium and titanium alloys , Gases for industrial application , Copper and copper alloys , Non-ferrous metals , Metalliferous minerals , Other non-ferrous metals and their alloys , Other products of the chemical industry , Cadmium, cobalt and their alloys , Materials for aluminium production , Refractories , Materials for aerospace construction , Abrasives , Physicochemical methods of analysis , Advanced ceramics .

The Chinese standard classification for "Nitrogen and oxygen analysis" includes: Chemical Measurement , Industrial gas and chemical gas , Petroleum geology exploration , Light metals and their alloys analysis method , Metallochemistry analysis method in general , Rare light metals and their alloys , Steel and iron alloy analysis method , Heavy metals and their alloys analysis method , Rare metals and their alloys analysis method , Heavy metal ore , Inorganic chemicals in general , Other chemical products in general , Fireproof material in general , Rare refractory metals and their compounds , Basic standards and general methods , Siliceous refractory , Basic refractory , Metallurgy material and auxiliary material in general , Other refractory material , Non-ferrous metals and their alloys products in general , Metal physical property test method , Special refractory , Grinding material and apparatus , Oxide and elementary substance , Special ceramics .

National Metrological Verification Regulations of the People's Republic of China

JJG 801-1993 Chemiluminescent No/NOX Analyzer
JJG 801-2004 Verification Regulation of Chemiluminescent NO/NOx Analyzers

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

GB/T 21994.7-2008 Chemical analysis of magnesium fluoride - Part 7: Determination of iron content - Orthophenantholine photometric method
GB/T 5070.3-2002 Magnesia-chrome refractory Methods for chemical analysis - Part 3: phenanthroline spectrophotometric determination of iron oxide
GB/T 4375.5-1984 Methods for chemical analysis of gallium--The N2O-C2H2flame atomic absorption spectrophotometric method for the determination of calcium content
GB/T 3257.5-1999 Methods for chemical analysis of bauxite--Determination of iron oxide content--Orthophenanthroline photometric method
GB/T 3253.2-2008 Methods for chemical analysis of antimony and antimony trioxide - Determination of iron content - Orthophenanthroline spectrophotometric method
GB/T 6609.35-2009 Chemical analysis methods and determination of physical performance of alumina - Part 35: Determination of specific surface area by nitrogen adsorption
GB/T 11064.7-1989 Lithium carbonate,lithium hydroxide monohydrate and lithium chloride--Determination of iron content--1.10-phenanthroline spectrophotometric method
GB/T 6609.4-1986 Methods for chemical analysis of aluminium oxide--The orthophenanthroline photometric method for the determination of ferric oxide content
GB/T 19143-2017 Analytical method of element for carbon,hydrogen,oxygen and nitrogen in rock organics
GB/T 32329-2015 Test method for oxidation resistance of oxynitride materials―Non-isothermal oxidation
GB/T 7315.3-1987 Methods for chamical analysis of vanadium pentixide--The ortho-phenanthroline spectrophotometric method forthe determination of iron content
GB/T 14265-1993 rule of chemical analysis for hydrogen, oxygen, nitrogen, carbon and sulfur in metals materials
GB/T 6610.4-2003 Chemical analysis methods of aluminium hydroxide Determination of ferric oxide content-Orthophenanthroline photometric method
GB/T 12690.17-1990 Rare-earth metals and their oxides--Determination of calcium content--Nitrous oxide-acetylene flame atomic absorption spectrometric method
GB/T 46133-2025 General rule for determination of nitrogen content by Dumas combustion method
GB/T 5121.8-2024 Methods for chemical analysis of copper and copper alloys—Part 8 : Determination of oxygen, nitrogen and hydrogen contents
GB/T 4698.7-2011 Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Determination of oxygen and nitrogen content
GB/T 6609.35-2023 Chemical analysis methods and determination of physical performance of alumina―Part 35:Determination of specific surface area―Nitrogen adsorption method
GB/T 4325.23-2013 Methods for chemical analysis of molybdenum—Part 23:Determination of oxygen and nitrogen contents—Inert gas fusion-infrared absorption and thermal conductivity method
GB/T 6901.4-1986 Silica refractories--Determination of iron oxide content-0-phenanthroline photometric method
GB/T 3257.15-1999 Methods for chemical analysis of bauxite--Determination the total content of rare earth oxide--Tribromo-arsenazo photometric method
GB/T 16555.5-1996 Chemical analysis for silicon carbide refractories--Determination of ferric oxide--o-Phenanthroline photometric method
GB/T 6609.4-2004 Chemical analysis methods and Determination of physical performance of alumina Determination of ferric oxide content-Orthophenanthroline photometric method
GB/T 6901.4-2004 Chemical analysis of silica refractories-Part 4: Determination of iron oxide-o-phenanthroline photometric method
GB/T 23274.2-2009 Methods for chemical analysis of stannic oxide - Part 2: Determination of iron content - 1，10-phenanthroline photometric method
GB/T 38386-2019 Gas analysis—Determination of oxynitride in gases—The method of Cavity Ring-Down Spectroscopy
GB/T 16480.5-1996 Method for chemical analysis of yttrium and yttium oxide--Determination of nitrogen content
GB/T 37186-2018 Gas analysis--Determination of sulfur dioxide and nitrogen oxides--Ultraviolet differential optical absorption spectroscopy
SPC GB/T 37186-2018 Gas analysis -- Determination of sulfur dioxide and nitrogen oxides -- Ultraviolet differential optical absorption spectroscopy (TEXT OF DOCUMENT IS IN CHINESE)
GB/T 12690.19-1990 Rare-earth metals and their oxides--Determination of iron content--1, 10-phenanthroline spectrophotometric method
GB/T 14265-2017 General rule of chemical analysis for hydrogen, oxygen, nitrogen, carbon and sulfur in metallic materials
GB/T 35109-2017 Static test method of nitrogen and oxygen separation for molecular sieves
GB/T 22660.7-2008 Chemical analysis methods of lithium fluoride - Part 7: Determination of iron content - Orthophenantholine photometric method

Professional Standard - Non-ferrous Metal

YS/T 629.2-2007 Chemical analysis methods of high purity alumina Determination of ferric oxide orthopenanthroline photometric method extracted with methyl-iso-butyl ketone
YS/T 1467.10-2021 Hafnium Chemical Analysis Methods Part 10: Determination of Oxygen and Nitrogen Amounts
YS/T 575.5-2006 Methods for chemical analysis of bauxite -- Determination of iron oxide content -- Orthophenanthroline photometric method
YS/T 575.14-2006 Methods for chemical analysis of bauxite -- Determination the total content of rare earth oxide -- Tribromo-arsenazo photometric method
YS/T 534.4-2007 Chemical analysis methods of aluminium hydroxide Part 4: Determination of iron oxide content Orthophenanthroline photometric method
YS/T 534.4-2006 Chemical analysis methods of aluminium hydroxide. Determination of ferric oxide content. Orthophenanthroline photometric method
YS/T 520.5-2006 Methods for chemical analysis of gallium. The N2O-C2H2 falme atomic absorption spectrophotometric method for the determination of calcium content
YSBC 31926-2022 Standard sample for oxygen and nitrogen gas analysis in steel ([O]0.0035%, [N]0.0060%)
YS/T 861.2-2013 Methods for chemical analysis of niobium-titanium alloy—Part 2:Determination of oxygen and nitrogen content—Inert gas fusion infrared/thermal conductivity method
YSBC 31901-2022 Standard samples for analysis of oxygen, nitrogen and hydrogen gases in steel ([O]0.0025%, [N]0.0060%), [H]0.00008%
YS/T 1525-2022 Methods for chemical analysis of NiPt alloys—Determination of oxygen and nitrogen contents—Pulse-infrared absorption and thermal conductivity detectionetry

National Metrological Technical Specifications of the People's Republic of China

JJF 1361-2012 Program on Pattern Evaluation of Chemiluminescent NO/NOx Analyzers

Taiwan Provincial Standard of the People's Republic of China

CNS 3572-1973 Chemical Analysis of Natural Rubber (Nitrogen)
CNS 188-1971 Method of Analysis for Calcium Cyanamide
CNS 10509-1983 Methods of Chemical Analysis for Nitrogen in Ferrochromium
CNS 12786-1990 Method of Chemical Analysis for Silicon Nitride Powders

Jiangsu Provincial Standard of the People's Republic of China

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

Professional Standard - Ferrous Metallurgy

YB/T 5330-2006 Methods for chemical analysis of vanadium pentoxide The ortho-phenanthroline spectrophotometric method for the determination iron content
YB/T 4013-1991 Method for chemical analysis of high-quality magnesia
YB 4013-1991 Chemical analysis method of high-quality magnesia, determination of iron oxide content by photometric method of phenanthroline
YB/T 6183-2024 Determination of Carbon, Hydrogen, Nitrogen, Sulfur, and Oxygen Content in Graphene Powder Elemental Analysis Method
YB/T 174.4-2000 Chemical analysis for silicon nitride bonded silicon carbide product. Determination of iron oxide content. o-Phenanthroline photometric method

Professional Standard - Environmental Protection

HJ 479-2009(XG1-2018) Determination of nitrogen oxides (nitrogen monoxide and nitrogen dioxide) in ambient air Spectrophotometric method of naphthalene ethylenediamine hydrochloride "No. 1 Amendment"
HJ 479-2009 Ambient air - Determination of nitrogen oxides - N-(1-naphthyl) ethylene diamine dihydrochloride spectrophotometric method

Professional Standard - Nuclear Industry

EJ/T 1212.8-2008 Test methods for analysis of sintered gadolinium oxide-uranium dioxide pellets.Part8: Determination of nitrogen by distillation nessier reagent photometric method

Chongqing Provincial Standard of the People's Republic of China

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

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

GJB 770.303-1989 Test methods for gunpowder analysis: Determination of nitrogen content of nitrocellulose. Five-tube nitrogen meter method
GJB 507-1988 Boron nitride chemical analysis method

Professional Standard - Aviation

HB 5220.49-2008 Methods for Chemical Analysis of Superalloys - Part 49: Determination of Oxygen,Nitrogen Content by Impulse Heating-Infrared,Thermal Conductivity Method
HB 5297.24-2001 Methods for Chemical Analysis of Titanium Alloys - Determination of Oxygen and Nitrogen Content by Pulse Heating-infrared Thermal Conductance Method

未注明发布机构

FORD FLTM AK 103-02-2001 QUANTITATIVE ANALYSIS OF NITRITE (AS NO2) IN CLEANERS

Professional Standard - Machinery

JB/T 7994-1999 Chemical analysis methods of cubic boron nitride

Group Standards of the People's Republic of China

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

Professional Standard - Building Materials

JC/T 2342-2015 Method for the quantitative phase analysis of silicon nitride

Professional Standard - Geology

DZ/T 0064.74-2021 Methods for analysis of groundwater quality- Part 74: Determination of helium, hydrogen, oxygen, argon nitrogen, methane, carbon monoxide, carbon dioxide and hydrogen sulfide- Gas chromatography

Japanese Industrial Standards Committee (JISC)

JIS K 8826:2004 Sodium hydroxide for nitrogen compounds analysis
JIS K 8826:1998 Sodium hydroxide for nitrogen compounds analysis
JIS B 7988:2007 Continuous analyzers for dinitrogen monoxide in flue gas
JIS K 8826 AMD 1:2006 Sodium hydroxide for nitrogen compounds analysis (Amendment 1)
JIS B 7982:1995 Continuous analyzers for oxides of nitrogen in flue gas
JIS B 7953:2004 Continuous analyzers for oxides of nitrogen in ambient air
JIS B 7953:1997 Continuous analysers for oxides of nitrogen in ambient air
JIS K 8826:2020 Sodium hydroxide for nitrogen compounds analysis (Reagent)
JIS B 7982:2002 Automated measuring systems and analyzers for nitrogen oxides in flue gas
JIS D 1030:1998 Automobiles -- Analytical procedure for measurement of carbon monoxide, carbon dioxide, total hydrocarbons and oxides of nitrogen in exhaust gas
JIS R 1640:2002 Methods for the quantitative phase analysis of silicon nitride

Association of German Mechanical Engineers

VDI 2456 Blatt 10-1990 Gaseous emission measurement; analytical determination of the sum of nitrogen monoxide and nitrogen dioxide; dimethylphenol method
VDI 2456 Blatt 10-1989 Gaseous emission measurement; analytical determination of the sum of nitrogen monoxide and nitrogen dioxide; dimethylphenol method
VDI 2453 BLATT 2-2002 Measuring gaseous emissions — Measuring nitrogen monoxide and nitrogen dioxide concentrations — Calibration of NO/NO<sub>x</sub> chemiluminescence measuring devices using gas phase titration

Korean Agency for Technology and Standards (KATS)

KS M 8531-2018(2023) Sodium hydroxide for nitrogen compounds analysis
KS M 8531-2018 Sodium hydroxide for nitrogen compounds analysis
KS B 5355-1993 Continuous analyzers for oxides of nitrogen in flue gas
KS M 8531-2023 Sodium hydroxide for nitrogen compounds analysis
KS B 5360-2021 Continuous Analysers for Oxides of Nitrogen in Ambient Air
KS B 5360-1990(2021) Continuous Analysers for Oxides of Nitrogen in Ambient Air
KS B 5360-1990(2016) Continuous Analysers for Oxides of Nitrogen in Ambient Air
KS I ISO 11905-2-2008(2013) Water quality－Determination of nitrogen－Part 2：Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
KS L ISO 21068-3-2012(2017) Chemical analysis of silicon-carbide-containing raw materials and refractory products－Part 3：Determination of nitrogen, oxygen and metallic and oxidic constituents
KS L 9310-2017(2022) Methods for chemical analysis of aluminum nitride powders
KS L 9310-2017 Methods for chemical analysis of aluminum nitride powders
KS L 9310-2022 Methods for chemical analysis of aluminum nitride powders
KS I ISO 11905-2:2008 Water quality-Determination of nitrogen-Part 2:Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
KS I 2203-2011 Methods for determination of oxides of nitrogen in flue gases
KS M 1047-2009 Nitrogen monoxide and nitrogen dioxide(standard reference materials)

Spanish Association for Standardization (UNE)

UNE 30 091 Analytical reagents. Arsenite nitrogen oxide As203M 197,82

Czech Standards Institute (UNMZ)

CSN 72 0120 Z1-1997 Basic analysis procedures for silicate. Determination method of potassium oxide and nitrogen flame photometry
CSN 72 0112 Cast.3 Z1-1997 Basic analysis procedures for silicate. Determination method of potassium oxide and nitrogen flame photometry
CSN 72 2030 Cast.4-1992 Chemical analysis of blast furnace slag. Determination of barium oxide content
CSN ON 65 4510-1962 Analysis of industrial degassing. Nitrogen determination
CSN 70 0626 Cast.2-1976 Glass testing. Chemical analysis of glass. Determination of iron(III)-oxide. Photometric method with the use of 1,10-phenanthroline
CSN 42 0648 Cast.5-1986 Chemical analysis of metallic chromium. Determination of nitrogen by the titration and by the method with automatic analyzers

British Standards Institution (BSI)

BS EN ISO 21068-3:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon-Determination of nitrogen, oxygen and metallic and oxidic constituents
BS EN ISO 21068-4:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon-XRD methods
BS EN 14211:2024 Ambient air. Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence
BS 1121-39:1959 Methods for the analysis of iron and steel. Nitrogen in iron and steel
23/30446960 DC BS EN ISO 21068-3. Chemical analysis of raw materials and refractory products containing silicon carbide, silicon nitride, silicon oxynitride and sialon - Part 3. Determination of nitrogen, oxygen and metallic and oxidic constituents
BS DD ENV 725-4:1994 Advanced technical ceramics. Methods of test for ceramic powders-Determination of oxygen content in aluminium nitride by XRF analysis
BS 1121-39:1967 Methods for the analysis of iron and steel. Nitrogen in iron and steel. Volumetric
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)

Standards Norway

NS 4743:1993 Water analysis — Determination of total nitrogen after oxidation by peroxodisulphate
NS 4743-1993 Water analysis. Determination of total nitrogen after oxidation with peroxodisulphate

Belgian Standards Institute

NBN T 91-255-1976 Water analysis methods - Determination of the ammoniacal and organic nitrogen - (Kjeldahl nitrogen)
NBN T 91-253-1976 Water analysis methods - Determination of the albuminoid nitrogen

Ente Nazionale Italiano di Unificazione

UNI EN ISO 21068-3:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, siliconoxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents
UNI EN ISO 21068-4:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, siliconoxynitride and sialon - Part 4: XRD methods

Association Francaise de Normalisation

NF EN ISO 21068-3:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3 : determination of nitrogen, oxygen and metallic and oxidic constituents
NF EN ISO 21068-4:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 4 : XRD methods

Danish Standards Foundation

DANSK DS/ISO 21068-3:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon – Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents
DANSK DS/ISO 21068-4:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon – Part 4: XRD methods

German Institute for Standardization

DIN EN ISO 21068-3 E:2023-07 Draft Document - Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO/DIS 21068-3:202...
DIN EN ISO 21068-3 E:2023 Draft Document - Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO/DIS 21068-3:202...
DIN EN ISO 21068-3:2024-11 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO 21068-3:2024); German version EN...
DIN EN ISO 21068-3:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO 21068-3:2024); German version EN...
DIN EN ISO 21068-4:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 4: XRD methods (ISO 21068-4:2024); German version EN ISO 21068-4:2024
DIN EN ISO 21068-4:2024-11 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 4: XRD methods (ISO 21068-4:2024); German version EN ISO 21068-4:2024
DIN EN ISO 21068-3:2023-07 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO/DIS 21068-3:2023); German and En...
DIN EN 14792 E:2014-12 Stationary source emissions - Determination of mass concentration of nitrogen oxides - Standard reference method: chemiluminescence

International Organization for Standardization (ISO)

ISO 21068-3:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents
ISO/DIS 21068-3 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon — Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents
ISO 21068-4:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 4: XRD methods
ISO/DIS 21068-4 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon — Part 4: XRD methods
ISO/FDIS 21068-1:2023 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon
ISO/FDIS 21068-3:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon
ISO/FDIS 21068-4:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon
ISO/FDIS 21068-2:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon
ISO/TR 11905-2:1997 Water quality - Determination of nitrogen - Part 2: Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection

American Petroleum Institute (API)

API PUBL 4340-1981 Evaluation and Analysis of Nitrogen Dioxide Aerometric Data (Withdrawn)

Standard Association of Australia （SAA）

AS 3580.5.1:2011 Methods for sampling and analyzing ambient air. Direct-reading instrument method for determination of nitrogen oxides.
AS 3580.5.1:1993 Methods for sampling and analysis of ambient air - Determination of oxides of nitrogen - Chemiluminescence method
AS 3580.5.1:2023 Methods for sampling and analysis of ambient air, Method 5.1: Determination of oxides of nitrogen — Direct-reading instrumental method
AS K1.12:1967 Methods for the analysis of iron and steel, Part 12: Nitrogen in steel: volumetric

Natural Gas Processor's Association (NGPA)

GPA STD 2103-2003 Tentative Method for the Analysis of Natural Gas Condensate Mixtures Containing Nitrogen and Carbon Dioxide by Gas Chromatography
GPA STD 2177-2013 Analysis of Natural Gas Liquid Mixtures Containing Nitrogen and Carbon Dioxide by Gas Chromatography
GPA STD 2177-2003 Analysis of Natural Gas Liquid Mixtures Containing Nitrogen and Carbon Dioxide by Gas Chromatography

Canadian Standards Association (CSA)

CSA Z223.24-M1983-1983(R1999) Method for the Measurement of Nitric Oxide and Nitrogen Dioxide in Air

Polski Komitet Normalizacyjny (PKN)

PN Z04092-08-1989 Air purity protection Tests for nitric acid and nitrogen oxides Determination of nitrogen dioxide in ambient air (imision) by spectrophotometric method with passive sampling

European Committee for Standardization (CEN)

EN ISO 21068-4:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 4: XRD methods (ISO 21068‑4:2024)
FprEN ISO 21068-3 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO/FDIS 21068‑3:2024)

Magyar Szabványügyi Testület

MSZ 21456/31-1983 Air gas pollution detection. Nitrogen hydroxide detection automatic analysis
MSZ 12303/6-1984 Chemical analysis of fireproof raw material products with zirconium oxide content (IV) and nitrogen oxide (Ti02) content defined by a photometric method
MSZ 12303/2-1984 Chemical analysis of fireproof raw material products with zirconium oxide content (IV) Nitrogen oxide (silicon dioxide) content defines gravimetric measurement method

American Water Works Association (AWWA)

AWWA ACE58255 Analytical Methods for Organic-N in Water Sources

Gosstandart of Russia

GOST R ISO 15859-5-2010 Space systems. Fluid characteristics, sampling and methods of analysis. Part 5. Nitrogen tetroxide propellants

COMMISSION FOR THE STANDARDS, METROLOGY AND QUALITY OF VIETNAM (STAMEQ)

TCVN 6624-2-2000 Water quality.Determination of nitrogen.Part 1: Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection

Netherlands Institute for Standardization

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 2045-1981 Air quality - The calibration of measuring methods for nitrogen monoxide, nitrogen dioxide and ozone by means of gas-phase titration

Swedish Institute for Standards

SS-EN 13342:2000 Characterization of sludges - Determination of Kjeldahl nitrogen
SS-EN 14211:2024 Ambient air — Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence

American Society for Testing and Materials (ASTM)

ASTM D2597-10 Standard Test Method for Analysis of Demethanized Hydrocarbon Liquid Mixtures Containing Nitrogen and Carbon Dioxide by Gas Chromatography

American Wood Protection Association

AWPA A33-03 Standard Method for the Analysis of N-Cyclohexyldiazeniumdioxyde (HDO) in Concentrates and Treating Solutions by Colorimetry
AWPA A33-08 Standard Method for the Analysis of N-Cyclohexyldiazeniumdioxyde (HDO) in Concentrates and Treating Solutions by Colorimetry