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carbon oxygen nitrogen hydrogen ratio

carbon oxygen nitrogen hydrogen ratio, Total:475 items.

In the international standard classification, carbon oxygen nitrogen hydrogen ratio involves: Test conditions and procedures in general, Non-ferrous metals, Testing of metals, Water quality, Products of the chemical industry, Nuclear energy engineering, Inorganic chemicals, Farming and forestry, Analytical chemistry, Coals, Environmental protection, Semiconducting materials, Diagnostic, maintenance and test equipment, Natural gas, Fuels, Animal feeding stuffs, Heat treatment, TESTING, Equipment for petroleum and natural gas industries, Protective equipment, Organic chemicals, Extraction and processing of petroleum and natural gas, Air quality, Road vehicles in general, Soil quality. Pedology, Metrology and measurement in general, Measurement of volume, mass, density, viscosity, Materials for aerospace construction, Meat, meat products and other animal produce, Mining equipment, Waxes, bituminous materials and other petroleum products, Mechanical testing, Fertilizers, Petroleum products in general, Lubricants, industrial oils and related products, Products of non-ferrous metals, Occupational safety. Industrial hygiene, Refractories, Metalliferous minerals, ENVIRONMENT. HEALTH PROTECTION. SAFETY, Non-metalliferous minerals, Raw materials for rubber and plastics, Protection against fire, Fruits. Vegetables, Welding, brazing and soldering, Ceramics, Ferroalloys, Tobacco, tobacco products and related equipment.

American Society for Testing and Materials (ASTM), carbon oxygen nitrogen hydrogen ratio

ASTM UOP866-86 Carbon, Hydrogen and Nitrogen by Oxidative Pyrolysis
ASTM C1494-01 Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
ASTM UOP586-71 Sulfur in Hydrocarbons by Oxy - Hydrogen Combustion
ASTM UOP606-78 Chloride in Hydrocarbons by Oxy-Hydrogen Combustion
ASTM UOP619-83 Fluorine in Hydrocarbons by Oxy-Hydrogen Combustion
ASTM UOP269-10 Nitrogen Bases in Hydrocarbons by Potentiometric Titration
ASTM UOP269-90 Nitrogen Bases in Hydrocarbons by Potentiometric Titration
ASTM D5373-93(2002) Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke
ASTM D5373-93(1997) Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke
ASTM D5373-16 Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
ASTM D5373-02 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke
ASTM D5373-02(2007) Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal and Coke
ASTM C1494-13(2018) Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
ASTM UOP1025-18 Density of Viscous Liquids and Semi-Solid Hydrocarbons by Nitrogen Displacement
ASTM D5373-14e1 Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
ASTM D5373-13 Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
ASTM D5373-14 Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
ASTM UOP930-07 Chloride in LPG and Gaseous Hydrocarbons by Dry Colorimetry
ASTM UOP930-06 Chloride in LPG and Gaseous Hydrocarbons by Dry Colorimetry
ASTM D5373-08 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples of Coal
ASTM D5373-21 Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
ASTM D5373-14e2 Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke
ASTM D7649-10(2017) Standard Test Method for Determination of Trace Carbon Dioxide, Argon, Nitrogen, Oxygen and Water in Hydrogen Fuel by Jet Pulse Injection and Gas Chromatography/Mass Spectrometer Analysis
ASTM D7649-19 Standard Test Method for Determination of Trace Carbon Dioxide, Argon, Nitrogen, Oxygen and Water in Hydrogen Fuel by Jet Pulse Injection and Gas Chromatography/Mass Spectrometer Analysis
ASTM D7649-10 Standard Test Method for Determination of Trace Carbon Dioxide, Argon, Nitrogen, Oxygen and Water in Hydrogen Fuel by Jet Pulse Injection and Gas Chromatography/Mass Spectrometer Analysis
ASTM D5291-01 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5291-10 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5291-92 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5291-96 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5291-21 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5291-16 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5291-10(2015) Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5291-09 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D6069-01(2006) Standard Test Method for Trace Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
ASTM D6069-96 Standard Test Method for Trace Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
ASTM D6069-01 Standard Test Method for Trace Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
ASTM D4629-02(2007) Standard Test Method for Trace Nitrogen in Liquid Petroleum Hydrocarbons by Syringe/Inlet Oxidative Combustion and Chemiluminescence Detection
ASTM D4629-02 Standard Test Method for Trace Nitrogen in Liquid Petroleum Hydrocarbons by Syringe/Inlet Oxidative Combustion and Chemiluminescence Detection
ASTM D5291-02(2007) Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM D5291-02 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants
ASTM C1069-09(2022) Standard Test Method for Specific Surface Area of Alumina or Quartz by Nitrogen Adsorption
ASTM E1019-00 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM E1019-18 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM C1494-01(2007) Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
ASTM E1019-03 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM E1019-02 Standard Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and in Iron, Nickel, and Cobalt Alloys
ASTM C1494-13 Standard Test Methods for Determination of Mass Fraction of Carbon, Nitrogen, and Oxygen in Silicon Nitride Powder
ASTM D6378-18a Standard Test Method for Determination of Vapor Pressure (VPX) of Petroleum Products, Hydrocarbons, and Hydrocarbon-Oxygenate Mixtures (Triple Expansion Method)
ASTM D6378-20 Standard Test Method for Determination of Vapor Pressure (VPX) of Petroleum Products, Hydrocarbons, and Hydrocarbon-Oxygenate Mixtures (Triple Expansion Method)
ASTM D6378-18 Standard Test Method for Determination of Vapor Pressure (VPX) of Petroleum Products, Hydrocarbons, and Hydrocarbon-Oxygenate Mixtures (Triple Expansion Method)
ASTM D6378-10(2016) Standard Test Method for Determination of Vapor Pressure (VPX) of Petroleum Products, Hydrocarbons, and Hydrocarbon-Oxygenate Mixtures (Triple Expansion Method)
ASTM D6378-22 Standard Test Method for Determination of Vapor Pressure (VPX) of Petroleum Products, Hydrocarbons, and Hydrocarbon-Oxygenate Mixtures (Triple Expansion Method)

AT-ON, carbon oxygen nitrogen hydrogen ratio

ONR CEN/TR 17674-2021 Bio-based products - Use of stable isotope ratios of Carbon, Hydrogen, Oxygen and Nitrogen as tools for verification of the origin of bio-based feedstock and characteristics of production processes - Overview of relevant existing applications
OENORM EN ISO 20236:2021 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2018)
OENORM EN ISO 21663:2021 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method (ISO 21663:2020)

Danish Standards Foundation, carbon oxygen nitrogen hydrogen ratio

DS/CEN/TR 17674:2021 Bio-based products – Use of stable isotope ratios of Carbon, Hydrogen, Oxygen and Nitrogen as tools for verification of the origin of bio-based feedstock and characteristics of production processes – Overview of relevant existing applications
DS/EN ISO 6974-3:2001 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns
DS/EN ISO 6974-6+Corr.1:2006 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 6: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns
DS/ISO 29541:2011 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen content - Instrumental method
DS/EN 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
DS/EN 15407:2011 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H) and nitrogen (N) content
DS/ISO 21663:2020 Solid recovered fuels – Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method
DS/EN ISO 21663:2020 Solid recovered fuels – Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method (ISO 21663:2020)
DS/EN ISO 15011-2:2010 Health and safety in welding and allied processes - Laboratory method for sampling fume and gases - Part 2: Determination of the emission rates of carbon monoxide (CO), carbon dioxide (CO2), nitrogen monoxide (NO) and nitrogen dioxide (NO2) during arc wel

ES-UNE, carbon oxygen nitrogen hydrogen ratio

UNE-CEN/TR 17674:2022 IN:2022 Bio-based products- Use of stable isotope ratios of Carbon, Hydrogen, Oxygen and Nitrogen as tools for verification of the origin of bio-based feedstock and characteristics of production processes - overview of relevant existing applications
UNE-EN ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (ISO 16948:2015)
UNE-EN ISO 21663:2021 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method (ISO 21663:2020)
UNE-EN ISO 20236:2022 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2018)

European Committee for Standardization (CEN), carbon oxygen nitrogen hydrogen ratio

PD CEN/TR 17674:2021 Bio-based products - Use of stable isotope ratios of Carbon, Hydrogen, Oxygen and Nitrogen as tools for verification of the origin of bio-based feedstock and characteristics of production processes - Overview of relevant existing applications
EN ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (ISO 16948:2015)
EN 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
EN 15407:2011 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H) and nitrogen (N) content
EN ISO 6974-3:2018 Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 3: Precision and bias (ISO 6974-3:2018)
EN ISO 6974-3:2001 Natural Gas - Determination of Composition with Defined Uncertainty by Gas Chromatography - Part 3: Determination of Hydrogen, Helium, Oxygen, Nitrogen, Carbon Dioxide and Hydrocarbons up to C8 Using Two Packed Columns
EN ISO 20236:2021 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2018)
EN ISO 21663:2020 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method (ISO 21663:2020)
prEN ISO 20236:2021 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2018)
HD 486 S1-1987 Test method for evaluating the oxidation stability of hydrocarbon insulating liquids
EN ISO 6974-5:2014 Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 5: Isothermal method for nitrogen@ carbon dioxide@ C1 to C5 hydrocarbons and C6+ hydrocarbons

YU-JUS, carbon oxygen nitrogen hydrogen ratio

JUS H.G8.055-1983 Reagents. Hydrogen peroxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.415-1991 Reagents. So?ium hydroxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.514-1991 Reagents. Potassium hydroxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.410-1991 Reagents. Sodium hvdroxide. Determination of sodium hvdroxide and carbonate contents. Volumetric method
JUS H.G8.509-1991 Reagents. Potassium hydroxide. Determination of potassium hydroxide and carbonate contents. Volumetric method
JUS H.G8.290-1987 Reagents. Copper(ll) oxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.484-1991 Reagents. Sodium hvdrohide. Determination of aluminium content. Colorimetric method
JUS H.G8.515-1991 Reagents. Potassium hydroxide. Determination of aluminium content. Colorimetric method
JUS H.G8.058-1983 Reagents. Hydrogen peroxide. Determination of chloride content. Turbidimetric method
JUS H.G8.412-1991 Reagents. Sodium hvdroxide. Determination of phosphates content. Colorimetric method
JUS H.G8.413-1991 Reagents. Sodium hydroxide. Determination of silicate content. Colorimetric metho?
JUS H.G8.056-1983 Reagents. Hydrogen peroxide. Determination of sulphate content. Turbidimetric method
JUS H.G8.291-1987 Reagents. Copper(ll) oxide. Determination ofearbon content. Turbidimetric method
JUS H.G8.510-1991 Reagents. Potassium hydroxide. Determination of chlorides content. Turbidimetric method
JUS H.G8.511-1991 Reagents. Potassium hydroxide. Determination of phosphates content. Colorimetric method
JUS H.G8.512-1991 Reagents. Potassium hydroxide. Determination of silicate content. Colorimetric method
JUS H.G8.513-1991 Reagents. Potassium hydroxide. Determination of sulphates content. Turbidimetric method
JUS H.G8.158-1984 Reagents. Sodium carbonate anhydrous and sodium carbonate decahydrate. Determination of total ni-trogen contont. Colorimetric method
JUS H.G8.053-1983 Reagents. Hydrogen peroxide. Determination of heavy metals content (as Pb). Colorimetric method
JUS H.G8.418-1991 Reagents. Sodium hvdroxide. Determination of arsenic content. Silver diethvldithiocarbamate spectrophotometric method
JUS B.H8.319-1987 Methods of analysis of coal and coke. Determination of carbon and hydrogen — Liebig method

British Standards Institution (BSI), carbon oxygen nitrogen hydrogen ratio

BS PD CEN/TR 17674:2021 Bio-based products. Use of stable isotope ratios of Carbon, Hydrogen, Oxygen and Nitrogen as tools for verification of the origin of bio-based feedstock and characteristics of production processes. Overview of relevant existing applications
BS EN ISO 6974-3:2000 Natural gas. Determination of composition with defined uncertainty by gas chromatography. Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns
BS EN ISO 6974-6:2002 Natural gas. Determination of composition with defined uncertainty by gas chromatography. Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns
BS EN ISO 6974-6:2008 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns
BS DD CEN/TS 15407:2006 Solid recovered fuels - Method for the determination of carbon (C), hydrogen (H) and nitrogen (N) content
BS EN ISO 16948:2015 Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen
BS ISO 29541:2010 Solid mineral fuels. Determination of total carbon, hydrogen and nitrogen content. Instrumental method
BS EN 15407:2011 Solid recovered fuels. Methods for the determination of carbon (C), hydrogen (H) and nitrogen (N) content
DD CEN/TS 15407:2006 Solid recovered fuels — Method for the determination of carbon (C), hydrogen (H) and nitrogen (N) content
BS EN 15104:2011 Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen. Instrumental methods
BS DD CEN/TS 15104:2006 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
BS DD CEN/TS 15104:2005 Solid biofuels — Determination of total content of carbon, hydrogen and nitrogen — Instrumental methods
DD ISO/TS 12902:2002 Solid mineral fuels. Determination of total carbon, hydrogen and nitrogen. Instrumental methods
BS ISO 4652:2020 Rubber compounding ingredients. Carbon black. Determination of specific surface area by nitrogen adsorption methods. Single-point procedures
BS ISO 27368:2011 Analysis of blood for asphyxiant toxicants. Carbon monoxide and hydrogen cyanide
BS ISO 27368:2008 Analysis of blood for asphyxiant toxicants. Carbon monoxide and hydrogen cyanide
BS ISO 8008:2005 Aluminium oxide primarily used for the production of aluminium. Determination of specific surface area by nitrogen adsorption
BS EN ISO 20236:2021 Water quality. Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN_b) and dissolved bound nitrogen (DN_b) after high temperature catalytic oxidative combustion
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 EN ISO 21663:2020 Solid recovered fuels. Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method
20/30366878 DC BS EN ISO 21663. Solid recovered fuels. Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method
23/30446956 DC BS EN ISO 21068-2. Chemical analysis of raw materials and refractory products containing silicon carbide, silicon nitride, silicon oxynitride and sialon - Part 2. Determination of volatile components, total carbon, free carbon, silicon carbide,…
20/30375934 DC BS ISO 4652. Rubber compounding ingredients. Carbon black. Determination of specific surface area by nitrogen adsorption methods. Single-point procedures
BS 6075-6:1981 Methods of sampling and test for sodium hydroxide for industrial use. Determination of carbonate content
BS 4140-23:1987 Methods of test for aluminium oxide - Determination of specific surface area by nitrogen adsorption (single-point method)
BS EN ISO 21068-3:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products -Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents

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, carbon oxygen nitrogen hydrogen ratio

GB/T 19143-2017 Analytical method of element for carbon,hydrogen ,oxygen and nitrogen in rock organics
GB/T 14265-2017 General rule of chemical analysis for hydrogen,oxygen,nitrogen,carbon and sulfur in metallic materials
GB/T 4702.17-2016 Chromium metal─Determination of oxygen, nitrogen and hydrogen content─Inert gas fusion thermal infrared detection method and conductivity method

Group Standards of the People's Republic of China, carbon oxygen nitrogen hydrogen ratio

T/GDASE 0009-2020 Determination of the content of carbon, hydrogen, oxygen, nitrogen and sulfur in graphene
T/CNIA 0016-2019 Determination of Hydrogen Chloride, Nitrogen, Oxygen and Total Carbon Content in Recycled Hydrogen for Polysilicon by Gas Chromatography
T/HEBQIA 078-2022 Hydrogen and oxygen car carbon cleaning machine
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/FSYY 0033-2021 Requirements of the carbon footprint accounting and reporting — Lithium hydroxide
T/WSJD 18.1-2021 Ion Chromatography for the Determination of Sodium Hydroxide, Sodium Carbonate and Potassium Hydroxide in Chemical Factors in the Air of the Workplace
T/LCAA 005-2021 Determination of methane, nitrous oxide and carbon dioxide concentrations in gases——gas chromatography method
T/NAIA 0208-2023 Determination of Stable Isotope Ratio of Carbon and Nitrogen in Lycium Barbarum by Stable Isotope Analyzer Method
T/NAIA 0135-2022 Determination of carbon, hydrogen and nitrogen in coal-based Fischer-Tropsch synthetic liquid fuel oil and chemicals Elemental analyzer method

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, carbon oxygen nitrogen hydrogen ratio

GB/T 14265-1993 General rule of chemical analysis for hydrogen, oxygen, nitrogen, carbon and sulfur in metal's materials
GB/T 30733-2014 Determination of total carbon, hydrogen and nitrogen content in coal.Instrumental method
GB 2591.5-1981 Determination of thorium dioxide content in bastnaesite concentrates
GB/T 4348.1-2013 Sodium hydroxide for industrial use.Determination of sodium hydroxide and sodium carbonate content
GB/T 8984.2-1997 Determination of carbon monoxide,carbon dioxide and hydrocarbon in the gases--Part 2:Determination of total content of carbon monoxide,carbon dioxide and hydrocarbon in gases--Gas chromatographic method
GB/T 4348.1-2000 Sodium hydroxide for industrial use-Determination of sodium hydroxide and sodium carbonate content
GB/T 8984-2008 Determination of carbon monoxide, carbon dioxide and hydrocarbon in gases. Gas chromatographic method
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 8984.1-1997 Determination of carbon monoxide,carbon dioxide and hydrocarbon in the gases--Part 1: Determination of carbon monoxide、carbon dioxide and mathane in the gases--Gas chromatographic method
GB/T 11064.7-1989 Lithium carbonate,lithium hydroxide monohydrate and lithium chloride--Determination of iron content--1.10-phenanthroline spectrophotometric method
GB/T 19143-2003 Analytical method of element for Carbon,Hydrogen and Oxygen in rock organics
GB/T 4921-1985 Waste gas from manufacturing process--Determination of chemical oxygen demand and nitrogen oxide--Potassium dichromate oxidation and naphthylethylene diamine colorimetric method
GB/T 11064.2-1989 Lithium carbonate--Determination of lithium hydroxide content--Acid-alkali titrimetric method
GB/T 6276.3-1986 Ammonium hydrogen carbonate for industrial use--Determination sulphide content--Visible turbidimetric method
GB/T 6276.4-1986 Ammonium hydrogen carbonate for industrial use--Determination sulphate content--Visible turbidimetric method
GB/T 6276.9-1986 Ammonium hydrogen carbonate for industrial use--Determination of heavy metal content--Visible turbidimetric method
GB/T 6610.4-2003 Chemical analysis methods of aluminium hydroxide Determination of ferric oxide content-Orthophenanthroline photometric method
GB/T 11064.12-1989 Lithium hydroxide monohydrate--Determination of carbon dioxide content--Absorption titrimetric method
GB/T 8969-1988 Air quality--Determination of nitrogen oxides in ambient air--Griess-saltzman method
GB 8969-1988 Air Quality Nitrogen Oxides Determination Naphthaleneethylenediamine Hydrochloride Colorimetric Method
GB/T 28124-2011 Determination of trace hydrogen,oxygen,methane and carbon monoxide in the inert gases. Gas chromatographic method
GB/T 2596-1981 Tungsten powder and tungsten carbide powder--Determination of specific surface product(average graininess)--Simplified nitrogen absorption method
GB/T 7698-2014 Sodium hydroxide for industrial use.Determination of carbonates content.Titrimetric method
GB/T 7698-2003 Sodium hydroxide for industrial use--Determination of carbonates content--Titrimetric method
GB/T 11064.7-2013 Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride.Part 7:Determination of iron content.1,10-Phenanthroline spectrophotometric method
GB/T 8984.3-1997 Determination of carbon monoxide, carbon dioxide and hydrocarbon in the gases--Part 3: Determination of total hydrocarbon in gases--Flame ionization method
GB/T 11064.2-2013 Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride.Part 2:Determination of lithium hydroxide content.Acid-alkali titrimetric method
GB/T 11213.6-1989 Sodium hydroxide for chemical fiber use--Determination of sulphate mass fraction--Turbidimetric method
GB/T 11064.2-2023 Lithium Carbonate, Lithium Hydroxide Monohydrate, Lithium Chloride Chemical Analysis Methods Part 2: Determination of Lithium Hydroxide Content by Acid-Base Titration
GB/T 27894.3-2011 Natrual gas.Determination of composition with defined uncertainty by gas chromatography.Part 3:Determination of hydrogen,helium,oxyen,nitrogen,carbon dioxide and hydrocarbons up to C using two packed columns
GB/T 27894.6-2012 Natural gas.Determination of composition with defined uncertainty by gas chromatography.Part 6:Determination of hydrogen helium oxygen nitrogen carbon dioxide and C<下标1> to C<下标8> hydrocarbons using three capillary columns
GB/T 11064.1-1989 Lithium carbonate--Determination of lithium carbonate content--Acid-alkali titrimetric method
GB/T 6276.3-2010 Determination of ammonium hydrogen carbonate for industrial use-Part 3:Sulphide content-Visible turbidimetric method
GB/T 6276.4-2010 Determination of ammonium hydrogen carbonate for industrial use-Part 4:Sulphate content-Visible turbidimetric method
GB/T 6276.9-2010 Determination of ammonium hydrogen carbonate for industrial use-Part 9:Heavy metal content-Visible turbidimetric method

RU-GOST R, carbon oxygen nitrogen hydrogen ratio

GOST 22720.1-1977 Rare metals and their alloys. Methods for the determination of oxygen, hydrogen, nitrogen and carbon
GOST 14338.4-1982 Molybdenum. Methods for determination of nitrogen, oxygen and hydrogen
GOST 14339.4-1982 Tungsten. Methods for the determination of nitrogen, oxygen, hydrogen
GOST 22720.0-1977 Rare metals and their alloys. General requirements for the methods of determination of oxygen, hydrogen, nitrogen and carbon
GOST 26239.7-1984 Semiconductor silicon. Method of oxygen, carbon and nitrogen determination
GOST R 54244-2010 Solid mineral fuel. Instrumental method for determination of carbon, hydrogen and nitrogen
GOST R 54234-2010 Solid recovered fuels. Determination of carbon, hydrogen and nitrogen content by instrument methods
GOST 32979-2014 Solid mineral fuel. Instrumental method for determination of carbon, hydrogen and nitrogen
GOST R 52963-2008 Water. Methods for determination of alkalinity, and mass concentration of carbonates and hydrocarbonates
GOST 31371.3-2008 Natural gas. Determination of composition with defined uncertainty by gas chromatography method. Part 3. Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns
GOST R 8.925-2016 State system for ensuring the uniformity of measurements. Certified reference materials of gas mixtures with Hydrogen, Nitrogen, Oxygen, Carbon Oxide, Carbon Dioxide, Methane, Propane, Hexane. Procedure of determining the metrological characteristics
GOST 32985-2014 Solid biofuels. Determination of carbon, hydrogen and nitrogen by instrumental methods
GOST R 54216-2010 Solid biofuels. Determination of total content of carbon, hydrogen and nitrogen by instrumental methods
GOST 33513-2015 Solid recovered fuel. Determination of carbon (C), hydrogen (H) and nitrogen (N) content by instrumental method
GOST R 8.916-2016 State system for ensuring the uniformity of measurements. Permeation tubes for Sulfur Dioxide, Hydrogen Sulfide, Nitrogen Dioxide, Chlorine, Hydrogen Chloride, Ammonia. Verification method
GOST 31371.4-2008 Natural gas. Determination of composition with defined uncertainty by gas chromatography method. Part 4. Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using two columns
GOST 31371.6-2008 Natural gas. Determination of composition with defined uncertainty by gas chromatography method. Part 6. Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns
GOST R 8.920-2016 State system for ensuring the uniformity of measurements. Certified reference materials of gas mixtures with Nitrogen oxide, Nitrogen dioxide, Hydrogen sulfide, Sulfur dioxide, Ammonia. Procedure of determining the metrological characteristics

Heilongjiang Provincial Standard of the People's Republic of China, carbon oxygen nitrogen hydrogen ratio

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

CZ-CSN, carbon oxygen nitrogen hydrogen ratio

CSN 07 8630-1969 Valve for cylinders for the storage of dinitrogen monoxide, carbon monoxide, hydrogen and rare gases
CSN 65 2061-1981 SODIUM HYDROXIDE TECHNICAL Photocolorimetric Method for Determi- nation of Copper
CSN 65 2057-1981 SODIUM HYDROXIDU TECHXICAL Photocolorimetric Mothod ior Dftfrim- nation of Iron
CSN 65 2067-1981 SODIUM HYDROXIDE TBCHNICAL Photocolorimetrio Mothod for Determi- nation of Mercury
CSN 07 8515-1984 Seamless steel gas cylinders for carbon dioxide, dinitrogen monoxide, hydrogen chloride and ethane
CSN 65 2054-1981 SODIUM HYDKOXIDE TECHNICAI, Photocolorimetric Mothod for Determi- nation of Sihcic Aoide
CSN 65 2101-1985 Potassium hydroxide technical. Determination of potassium hydroxide content. Total alkalinity and potassium carbonate content. Titrimetrical method
CSN 65 2052-1981 SODIUM HYDROXIDE TECHNJCAL Volumctric JVlpthod for Deteniiiiiuiion of Sodium Carbunate
CSN 65 2051-1981 SODIUM HYDROXIDE TECHNICJAL, Gasvolumetrie Method for Determina- tion of Sodium Carbonate

Professional Standard - Aerospace, carbon oxygen nitrogen hydrogen ratio

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

Professional Standard - Energy, carbon oxygen nitrogen hydrogen ratio

NB/T 20176-2012 Design requirement for hydrogen supply, nitrogen supply, oxygen supply, carbon dioxide supply system of PWR nuclear power plant
NB/SH/T 0656-2017 Determination of Carbon, Hydrogen and Nitrogen in Petroleum Products and Lubricants Elemental Analyzer Method

Korean Agency for Technology and Standards (KATS), carbon oxygen nitrogen hydrogen ratio

KS M 1417-2010 Magnesium hydroxide carbonate
KS M 1011-1994 Nitrogen monoxide(standard reference gas)
KS M 8531-2004 Sodium hydroxide for nitrogen compounds analysis
KS M 8531-2018 Sodium hydroxide for nitrogen compounds analysis
KS M ISO 16948:2021 Solid biofuels — Determination of total content of carbon, hydrogen and nitrogen
KS I ISO 6974-5-2015(2020) Natural gas — Determination of composition and associated uncertainty by gas chromatography —Part 5: Isothermal method for nitrogen, carbon dioxide,C1 to C5 hydrocarbons and C6＋ hydrocarbons
KS I ISO 6974-3-2006(2016) Natural gas－Determination of composition with defined uncertainty by gas chromatography－Part 3：Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two p
KS E 4112-1996(2011) Detector tube type carbon monoxide measuring instruments(Colour-intensity)
KS E 4112-1980 Detector tube type carbon monoxide measuring instruments(Colour-intensity)
KS R 1021-2014 Continuous measurement method of concentration carbon monoxide, carbon dioxide and hydrocarbon in automobile exhaust gas
KS R 1021-1980 Continuous measurement method of concentration carbon monoxide, carbon dioxide and hydrocarbon in automobile exhaust gas
KS R 1021-2005 Analytical procedure for continuous measurement of carbonmonoxide, carbon dioxide and hydrocarbon in automobile exhaust gas
KS E ISO 625-2003(2018) Solid mineral fuels－Determination of carbon and hydrogen sulfur－Liebig method
KS R 1021-2014(2019) Continuous measurement method of concentration carbon monoxide, carbon dioxide and hydrocarbon in automobile exhaust gas
KS M 2418-2006 Standard test method for instrumental determination of carbon, hydrogen, and nitrogen in petroleum products and lubricants
KS M ISO 12979-2004(2019) Carbonaceous materials used in the production of aluminium－Pitch for electrodes－Determination of C/H ratio in the quinoline-insoluble fraction
KS E ISO 625:2003 Solid mineral fuels－Determination of carbon and hydrogen sulfur－Liebig method
KS E ISO 4696-1:2008 Iron ores for blast furnace feedstocks-Determination of low-temperature reduction-disintegration indices by static method-Part 1:Reduction with CO, CO2, H2 and N2
KS E ISO 4696-1:2017 Iron ores for blast furnace feedstocks－Determination of low-temperature reduction-disintegration indices by static method－Part 1：Reduction with CO, CO2, H2 and N2
KS I ISO 6974-3:2006 Natural gas-Determination of composition with defined uncertainty by gas chromatography-Part 3:Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns
KS M ISO 3196:2012 Sodium hydroxide for industrial use－Determination of carbonates content－Titrimetric method
KS M ISO 3196-2017(2022) Sodium hydroxide for industrial use — Determination of carbonates content — Titrimetric method
KS M ISO 3196:2017 Sodium hydroxide for industrial use — Determination of carbonates content — Titrimetric method
KS M 2418-2006(2016) Standard test method for instrumental determination of carbon, hydrogen, and nitrogen in petroleum products and lubricants
KS M 2418-2006(2021) Standard test method for instrumental determination of carbon, hydrogen, and nitrogen in petroleum products and lubricants
KS M 1033-2017(2022) Testing method for density of high-purity hydrocarbons by Bingham pycnometer
KS I ISO 6974-6:2019 Natural gas — Determination of composition with defined uncertainty by gas chromatography — Part 6: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using
KS M ISO 8008:2003 Aluminium oxide primarily used for the production of aluminium-Determination of specific surface area by nitrogen adsorption-Single-point method
KS I ISO 6974-4-2006(2021) Natural gas－Determination of composition with defined uncertainty by gas chromatography－Part 4：Determination of nitrogen, carbon dioxide and C1 to C5 and C6＋ hydrocarbons for a laboratory and on-line

Jiangsu Provincial Standard of the People's Republic of China, carbon oxygen nitrogen hydrogen ratio

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

Hunan Provincial Standard of the People's Republic of China, carbon oxygen nitrogen hydrogen ratio

DB43/T 2264-2021 Determination of the main elements of organic matter carbon, hydrogen, oxygen, nitrogen, sulfur adsorption separation - thermal conductivity method

Japanese Industrial Standards Committee (JISC), carbon oxygen nitrogen hydrogen ratio

JIS K 8826:2004 Sodium hydroxide for nitrogen compounds analysis
JIS K 8826:1998 Sodium hydroxide for nitrogen compounds analysis
JIS K 8826 AMD 1:2006 Sodium hydroxide for nitrogen compounds analysis (Amendment 1)
JIS K 1200-2:2000 Sodium hydroxide for industrial use -- Part 2: Determination of total alkalinity, sodium hydroxide and sodium carbonate
JIS D 1030:1998 Automobiles -- Analytical procedure for measurement of carbon monoxide, carbon dioxide, total hydrocarbons and oxides of nitrogen in exhaust gas
JIS D 1030:1995 Analytical procedure for continuous measurement of carbon monoxide, carbon dioxide and hydrocarbon in automobile exhaust gas
JIS K 1200-1:2000 Sodium hydroxide for industrial use -- Part 1: Specific gravity or density
JIS M 7605:1993 Detector tube type carbon monoxide measuring instruments (Colour-intensity)

SE-SIS, carbon oxygen nitrogen hydrogen ratio

SIS SMS 694-1968 Gas cylinders tor atrbort ilioxirle and nitrous oxide
SIS SS 694-1988 Gas cylinders — Gas cylinders for carbon dioxide and nitrous oxide — Dimensions
SIS SS 02 84 15-1980 Workplace atmosphere — Nitrogen dioxide content in air — Colorimetric method

Professional Standard - Geology, carbon oxygen nitrogen hydrogen ratio

DZ/T 0064.74-2021 Groundwater Quality Analysis Methods Part 74: Determination of Helium, Hydrogen, Oxygen, Argon, Nitrogen, Methane, Carbon Monoxide, Carbon Dioxide and Hydrogen Sulfide by Gas Chromatography
DZ/T 0064.49-1993 Groundwater quality testing methods Titrimetric determination of carbonate, bicarbonate and hydroxide
DZ/T 0064.49-2021 Analytical methods for groundwater quality - Part 49: Determination of carbonate, bicarbonate and hydroxide ions by titration

Natural Gas Processor's Association (NGPA), carbon oxygen nitrogen hydrogen ratio

GPA RR-24-1977 Enthalpy and Phase Bondary Measurements on Mixtures of Nitrogen with Methane, Carbon Dioxide, and Hydrogen Sulfide
GPA RR-15-1975 Equilibrium Phase Properties of Selected Binary Systems at Low Terperature: Nitrogen - Hydrogen Sulfide Ethane - Hydrogen Sulfide n Butane - Carbon Dioxide
GPA RR-7-1972 The Equilibrium Phase Properties of the Binary Systems: Nitrogen-Hydrogen Sulfide, Isobutane-Hydrogen Sulfide, Isobutane-Carbon Dioxide, Isobutane-Ethane
GPA STD 2186-2002 Method for the Extended Analysis of Hydrocarbon Liquid Mixtures Containing Nitrogen and Carbon Dioxide by Temperature Programmed Gas Chromatography
GPA RR-18-1976 Equilibrium Phase Properties of Selected Binary Systems: n-Heptane - Hydrogen Sulfide n-Heptane - Carbon Dioxide i-Butane - Nitrogen; Addendum - 1977
GPA RR-12-1975 Enthalpy and Phase Boundry Measurements on Carbon Dioxide and Mixtures of Carbon Dioxide with Methane, Ethane, and Hydrogen Sulfide
GPA RR-37-1979 Enthalpy Measurements on Synthetic Gas Systems: Hydrogen-Methane Hydrogen-Carbon Monoxide
GPA RR-29-1978 Equilibrium Phase Compositions of Selected Aromatic and Naphthenic Binary Systems: Toluene - Carbon Dioxide Toluene - Hydrogen Sulfide Methyl Cyclohexane - Carbon Dioxide Methyl Cyclohexane - Hydrogen Sulfide
GPA RR-57-1982 Phase Behavior of Two Mixtures of Methane, Carbon Dioxide, Hydrogen Sulfide, and Water
GPA STD 2377-2014 Test for Hydrogen Sulfide and Carbon Dioxide in Natural Gas Using Length of Stain Tubes
GPA STD 2177-2013 Analysis of Natural Gas Liquid Mixtures Containing Nitrogen and Carbon Dioxide by Gas Chromatography
GPA RR-55-1981 Phase Equilibrium Studies for Methane/Synthesis Gas Separation: the Hydrogen-Carbon Monoxide-Methane System

KR-KS, carbon oxygen nitrogen hydrogen ratio

KS M 8531-2018(2023) Sodium hydroxide for nitrogen compounds analysis
KS I ISO 6974-5-2022 Natural gas Determination of composition and associated uncertainty by gas chromatography Part 5: Isothermal method for nitrogen, carbon dioxide, C 1 to C 5 hydrocarbons and C 6+ hydrocarbons
KS M ISO 16948-2021 Solid biofuels — Determination of total content of carbon, hydrogen and nitrogen
KS E ISO 625-2003(2023) Solid mineral fuels－Determination of carbon and hydrogen sulfur－Liebig method
KS M ISO 3196-2017 Sodium hydroxide for industrial use — Determination of carbonates content — Titrimetric method
KS I ISO 6974-6-2019 Natural gas — Determination of composition with defined uncertainty by gas chromatography — Part 6: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using

PL-PKN, carbon oxygen nitrogen hydrogen ratio

PN Z08060-1953 Industrial safety canisters -- Test for impermeability to ammonia, chlorine, hydrogen sulphide, nitrogen oxides, sulphur dioxide and carbon sulphide vapours
PN C84002-02-1988 Sodium hydroxide technical Determination of sodium hydroxide and sodium carbonate content
PN C84039-06-1987 Potassium hydroxide technical Determination of potassium hydroxide and potassium carbonate content
PN C84002-06-1986 Sodium hydroxide technical Determination of silica content Photocolorimetric method
PN C84002-09-1986 Sodium hydroxide technical Determination of iron content Photocolorimetric method
PN C84039-07-1987 Potassium hydroxide technical Determination of iron content Photocolorimetric method
PN C84002-18-1986 Sodium hydroxide technical Determination of mercury content Photocolorimetric method
PN C84002-21-1986 Sodium hydroxide technical Determination of sodium chlorate content Photocolorimetric method
PN Z04095 Arkusz 01-1974 Air purity protection Tests for carbon dioxide Determination of carbon dioxide work station by method with strontium hydroxide
PN Z04156-02-1987 Air purity protection ests for magnesium oxide and alcium oxide etermination of magnesium oxide and alcium oxide in work places by olorometric method
PN-EN ISO 21663-2021-06 E Solid recovered fuels -- Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method (ISO 21663:2020)

Anhui Provincial Standard of the People's Republic of China, carbon oxygen nitrogen hydrogen ratio

DB34/T 2135-2014 Determination method of carbon, hydrogen and nitrogen in coal thermal conductivity method
DB34/T 3690-2020 Determination of carbon dioxide and nitrogen content in liquefied petroleum gas

Professional Standard - Business, carbon oxygen nitrogen hydrogen ratio

SB/T 10741-2012 Vehicle decarbonization system

SAE - SAE International, carbon oxygen nitrogen hydrogen ratio

SAE J177-1970 MEASUREMENT OF CARBON DIOXIDE@ CARBON MONOXIDE@ AND OXIDES OF NITROGEN IN DIESEL EXHAUST
SAE J177-2002 Measurement of Carbon Dioxide@ Carbon Monoxide@ and Oxides of Nitrogen in Diesel Exhaust
SAE J177-1995 Measurement of carbon dioxide, carbon monoxide and nitrogen oxides in diesel engine exhaust

HU-MSZT, carbon oxygen nitrogen hydrogen ratio

Association Francaise de Normalisation, carbon oxygen nitrogen hydrogen ratio

NF EN ISO 6974-6:2005 Gaz naturel - Détermination de la composition avec une incertitude définie par chromatographie en phase gazeuse - Partie 6 : détermination de l'hydrogène, de l'hélium, de l'oxygène, de l'azote, du dioxyde de carbone et des hydrocarbures C1 à...
NF X34-117*NF EN ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen
NF EN ISO 16948:2015 Biocombustibles solides - Détermination de la teneur totale en carbone, hydrogène et azote
NF X34-117:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods.
NF X34-220:2011 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H) and nitrogen (N) content.
NF T20-378:1977 Potassium hydroxide for industrial use. Determination of carbon dioxide content. Titrimetric method.
FD T66-042-2016 Hydrocarbon binders - Determination of the carbochemical heavy distillates content of mixed bitumens - Densimeter method
NF T66-042:1997 Hydrocarbon binders. Determination of the carbochemical heavy distillates content of mixed bitumens. Densimeter method.
NF T20-426:1976 Sodium hydroxyde for industrial use. Determination of carbonates content. Titrimetric method.
NF T20-219:1987 Aluminium oxide primarily used for the production of aluminium. Determination of specific surface area by nitrogen adsorption. Single-point method.
NF X34-220:2020 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method
NF T90-236*NF EN ISO 20236:2021 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion
NF EN ISO 20236:2021 Qualité de l'eau - Dosage du carbone organique total (COT), carbone organique dissous (COD), azote lié total (TNb) et azote lié dissous (DNb) après combustion catalytique oxydante à haute température
NF EN ISO 6974-5:2014 Gaz naturel - Détermination de la composition et de l'incertitude associée par chromatographie en phase gazeuse - Partie 5 : Méthode isotherme pour l'azote, le dioxyde de carbone, les hydrocarbures C1 à C5 et C6+
NF T81-125:1987 Récipients pour gaz liquéfiés réfrigérés - Organes de transvasement - Raccords pour hémioxyde d'azote ou dioxyde de carbone réfrigérés.
NF EN ISO 21663:2020 Combustibles solides de récupération - Méthodes de détermination de la teneur en carbone (C), hydrogène (H), azote (N) et soufre (S) par la méthode instrumentale
NF T20-427:1976 Sodium hydroxyde for industrial use. Determination of carbonates content. Gas volumetric method.
NF X20-510-6*NF EN ISO 6974-6:2005 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 6 : determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns.
NF T20-552:1989 Hydrogen peroxide for industrial use. Determination of chlorides and sulfates. Turbidimetric method.
NF T20-381:1977 Potassium hydroxide for industrial use. Determination of carbonates content. Gas-volumetric method.
NF EN ISO 6974-4:2003 Gaz naturel - Détermination de la composition avec une incertitude définie par chromatographie en phase gazeuse - Partie 4 : détermination de l'azote, du dioxide de carbone et des hydrocarbures (C1 à C5 et C6+) pour un laboratoire et un système d...

RO-ASRO, carbon oxygen nitrogen hydrogen ratio

STAS 2905-1981 SOLID FUELS Delermination of carbon, hydrogen and oxygen
STAS 10500/6-1976 MINE AIR Determination of carbon dioxide, oxygen, methane and hydrogen
STAS 8125/8-1983 BARIUM HYDROXIDE Determination of calcium sulphate and calcium carbonate
STAS 8125/7-1985 BARYTA HYDRATE Determination of barium carbonate, barium sulphate and total barium content

TR-TSE, carbon oxygen nitrogen hydrogen ratio

TS 1144-1973 SODIUM HYDROXIDE AND POTASSIUM HYDROXCDE FOR INDUSTRIAL USE DETERMIN A.TION OF THE CARBON DK>XIDE CONTENT EXPRESSED AS SODIUMOR POTASSIUM CARBONATE GAS - VOLUMETRIC METHOD
TS 2072-1975 POTASSIUM HYDROXIDE FOR INDUSTRIAL USE DETERMINATION OF CARBON DIOXIDE CONTENT TITRIMETRIC METHOD
TS 646-1968 DETERMINATION OF CARBON AND HYDROGEN ?N COAL AND COKE BY THE LIEBIG METHOD
TS 2189-1976 SODIUM HYDROXIDE FOR INDUSTRIAL USE DETERMINATION OF CARBONATES CONTENT TITRIMETRIC METHOD

VN-TCVN, carbon oxygen nitrogen hydrogen ratio

TCVN 3795-1983 Sodium hydroxide technical.Method of test sodium hydroxide, total of alkaline and sodium carbonate contents
TCVN 3895-1984 Natural gases.Gas chromatography method for the determination of carbon dioxided and hydrogen contents

Taiwan Provincial Standard of the People's Republic of China, carbon oxygen nitrogen hydrogen ratio

CNS 2592-1967 Method of Analysis for Carbon Dioxide, Oxygen, Carbon Monoxide Hydrogen and Methane in Gases
CNS 5252-1980 Corbon Monoxide Detector with Colour-Intensity Type Tubes
CNS 10825-1984 Method for Determination of Carbon and Hydrogen of Coal and Coke (Liebig Method)
CNS 4084-1977 Method of Test for Nitrogen Dioxide in Exhaust Gases (Saltzman Method)
CNS 12706-1990 Method of Test for Specific Surface Area of Alumina or Quartz by Nitrogen Adsorption

工业和信息化部/国家能源局, carbon oxygen nitrogen hydrogen ratio

JB/T 13023-2017 Technical requirements for nitrogen, carbon and oxygen composite treatment (QPQ)

Hebei Provincial Standard of the People's Republic of China, carbon oxygen nitrogen hydrogen ratio

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

Universal Oil Products Company (UOP), carbon oxygen nitrogen hydrogen ratio

UOP 269-2010 Nitrogen Bases in Hydrocarbons by Titration
UOP 930-2007 Chloride in LPG and Gaseous Hydrocarbons by Dry Colorimetry

International Organization for Standardization (ISO), carbon oxygen nitrogen hydrogen ratio

ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen
ISO/CD 625:1976 Solid mineral fuels — Determination of carbon and hydrogen — Liebig method
ISO/TS 12902:2001 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
ISO/CD 29541:1976 Solid mineral fuels — Determination of total carbon, hydrogen and nitrogen content — Instrumental method
ISO 2900:1973 Potassium hydroxide for industrial use; Determination of carbon dioxide content; Titrimetric method
ISO 29541:2010 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen content - Instrumental method
ISO 625:1975 Solid mineral fuels - Determination of carbon and hydrogen - Liebig method
ISO 625:1996 Solid mineral fuels - Determination of carbon and hydrogen - Liebig method
ISO 6974-3:2000 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C<(Index)8> using two packed columns
ISO 8008:2005 Aluminium oxide primarily used for the production of aluminium - Determination of specific surface area by nitrogen adsorption
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 3422:1975 Ammonium hydrogen carbonate for industrial use (including foodstuffs); Determination of total carbon dioxide content; Titrimetric method
ISO 3196:1975 Sodium hydroxide for industrial use; Determination of carbonates content; Titrimetric method
ISO 20236:2018 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion
ISO 21793:2020 Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb), dissolved bound nitrogen (DNb), total bound phosphorus (TPb) and dissolved boun
ISO 991:1976 Potassium hydroxide for industrial use — Determination of carbonates content — Gas-volumetric method
ISO 980:1976 Sodium hydroxide for industrial use — Determination of carbonates content — Gas-volumetric method
ISO 2515:1973 Ammonium hydrogen carbonate for industrial use (including foodstuffs); Determination of ammoniacal nitrogen content; Volumetric method after distillation
ISO/CD 20236 Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN b) and dissolved bound nitrogen (DN b) after high temperature catalytic oxidative combustion
ISO/DIS 20236:2023 Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN b) and dissolved bound nitrogen (DN b) after high temperature catalytic oxidative combustion
ISO 27368:2008 Analysis of blood for asphyxiant toxicants - Carbon monoxide and hydrogen cyanide
ISO 625:1996/cor 1:1996 Solid mineral fuels - Determination of carbon and hydrogen - Liebig method; Technical Corrigendum 1
ISO 21663:2020 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method
ISO/DIS 21068-2 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon — Part 2: Determination of volatile components, total carbon, free carbon, silicon carbide, total and free silicon, free
ISO 8008:1986 Aluminium oxide primarily used for the production of aluminium; Determination of specific surface area by nitrogen adsorption; Single-point method
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 7408:1983 Fertilizers; Determination of ammoniacal nitrogen content in the presence of other substances which release ammonia when treated with sodium hydroxide; Titrimetric method

German Institute for Standardization, carbon oxygen nitrogen hydrogen ratio

DIN EN ISO 16948:2015-09 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (ISO 16948:2015); German version EN ISO 16948:2015
DIN EN ISO 6974-6:2005-08 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 6: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C<(Index)1> to C<(Index)8> hydrocarbons using three capillary column...
DIN 50450-9:2003 Testing of materials for semiconductor technology - Determination of impurities in carrier gases and dopant gases - Part 9: Determination of oxygen, nitrogen, carbonmonoxide, carbondioxide, hydrogen and C<(Index)1>-C<(Index)3>-hydrocarbons in gaseous hydr
DIN 51732:2014 Testing of solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
DIN 51732:2007 Testing of solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
DIN 51732:2014-07 Testing of solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods
DIN EN ISO 15011-2:2010-03 Health and safety in welding and allied processes - Laboratory method for sampling fume and gases - Part 2: Determination of the emission rates of carbon monoxide (CO), carbon dioxide (CO<(Index)2>), nitrogen monoxide (NO) and nitrogen dioxide (N...
DIN EN ISO 21663:2021-03 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method (ISO 21663:2020); German version EN ISO 21663:2020
DIN EN ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (ISO 16948:2015); German version EN ISO 16948:2015
DIN EN 15407:2011 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H) and nitrogen (N) content; German version EN 15407:2011
DIN EN ISO 6974-6:2005 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 6: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C<(Index)1> to C<(Index)8> hydrocarbons using three capillary columns (ISO 6974-6:2
DIN EN ISO 20236:2023 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN) and dissolved bound nitrogen (DN) after high temperature catalytic oxidative combustion (ISO 20236:2018)
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 15104:2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods; German version EN 15104:2011
DIN EN ISO 21068-2:2023-07 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 2: Determination of volatile components, total carbon, free carbon, silicon carbide, total and free silicon, fr...
DIN EN ISO 20236:2023-10 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN<(Index)b>) and dissolved bound nitrogen (DN<(Index)b>) after high temperature catalytic oxidative combustion (ISO/DIS 2023...

IE-NSAI, carbon oxygen nitrogen hydrogen ratio

I.S.47-1955 HIGH CARBON AND MAN.GANESE STEEL CYLINDERS(BRITISH TYPE)FOR CARBON DIOXIDE,NITROUS OXIDE AND ETHYLENE

Professional Standard - Electricity, carbon oxygen nitrogen hydrogen ratio

DL 425.2-1991 Determination of sodium hydroxide and sodium carbonate content in industrial sodium hydroxide - Titrimetry
DL 425.5-1991 Determination of sodium hydroxide and sodium carbonate content in industrial sodium hydroxide - Volumetric method

国家质量监督检验检疫总局, carbon oxygen nitrogen hydrogen ratio

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

Professional Standard - Petroleum, carbon oxygen nitrogen hydrogen ratio

SY/T 6842-2011 Through-tube carbon/oxygen logging tool
SY 6842-2011 Through-tubing carbon-oxygen ratio energy spectrum logging tool
SY/T 6180-1996 C/O Ratio Energy Spectrum Logging Operation Regulations
SY/T 5693-2008 Specification for calibration of the C/O spectrum logging tool
SY 5693-2008 Calibration specification for carbon-oxygen ratio energy spectrum logging tool
SY/T 7506-1996 Narural gas.Determination of carbon dioxide content.Barium hydroxide method
SY/T 5238-1991 Hydrogen, carbon and oxygen isotope sample preparation method in natural gas
SY/T 5122-1999 Analytical method of element for Carbon,Hydrogen and Oxygen in organic matter of rock
SY/T 6618-2005 Specification for log data processing and Interpretation of the carbon/oxygen
SY 6618-2005 Specifications for processing and interpretation of carbon-oxygen ratio logging data
SY/T 5693-1995 Technical Regulations for Maintenance and Calibration of Carbon-Oxygen Ratio Spectrum Logging Tool

国家能源局, carbon oxygen nitrogen hydrogen ratio

SY/T 6180-2009 Carbon-oxygen specific energy logging operation procedures
SH/T 0656-2017 Elemental analyzer method for determination of carbon, hydrogen and nitrogen in petroleum products and lubricants

BE-NBN, carbon oxygen nitrogen hydrogen ratio

NBN B 11-228-1995
NBN T 03-196-1980 Potassium hydroxide for industrial use - Determination of carbon dioxide content - Titrimetric method
NBN T 03-084-1979 Ammonium hydrogen carbonate for industrial use (including food-stuffs) - Determination of total carbon dioxide content - Titri-metric method
NBN T 03-187-1980 Potassium hydroxide for industrial use - Determination of carbonates content - Gas-volumetric method
NBN T 03-130-1980 Sodium hydroxide for industrial use - Determination of carbonates content -Titrimetric method
NBN B 11-222-1995
NBN T 03-081-1979 Ammonium hydrogen carbonate for industrial use (including food-stuffs) - Determination of ammoniacal nitrogen content - Titrimetric method after distillation
NBN T 03-122-1980 Sodium hydroxide for industrial use - Determination of carbonates content - Gas-volumetric method

Military Standard of the People's Republic of China-General Armament Department, carbon oxygen nitrogen hydrogen ratio

GJB 10271-2021 Specification for lithium hydroxide carbon dioxide absorption devices for submarines
GJB 8134-2013 Specification for 3,3-bis (azidomethy) oxetane and tetrahydrofuran copolymer

Canadian Standards Association (CSA), carbon oxygen nitrogen hydrogen ratio

CAN/CSA-ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (First Edition)
CSA Z223.2-M86-CAN/CSA-1986 Method for the Continuous Measurement of Oxygen, Carbon Dioxide, Carbon Monoxide, Sulphur Dioxide, and Oxides of Nitrogen in Enclosed Combustion Flue Gas Streams General Instruction No 1 R(1999)

Professional Standard - Forestry, carbon oxygen nitrogen hydrogen ratio

LY/T 1237-1999 Determination of organic matter in forest soil and calculation carbon-nitrogen ratio

CEN - European Committee for Standardization, carbon oxygen nitrogen hydrogen ratio

PD CEN/TS 15104:2005 Solid biofuels - Determination of total content of carbon@ hydrogen and nitrogen - Instrumental methods
PD CEN/TS 15407:2006 Solid recovered fuels - Method for the determination of carbon (C)@ hydrogen (H) and nitrogen (N) content
EN ISO 6974-6:2005 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 6: Determination of hydrogen@ helium@ oxygen@ nitrogen@ carbon dioxide and C1 to C8 hydrocarbons using three capillary columns

Lithuanian Standards Office , carbon oxygen nitrogen hydrogen ratio

LST EN 15104-2011 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen - Instrumental methods
LST EN ISO 16948:2015 Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (ISO 16948:2015)
LST EN 15407-2011 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H) and nitrogen (N) content
LST EN ISO 6974-3:2003 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns (ISO 6974-3:2000)
LST EN ISO 6974-6:2005 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 6: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns (ISO 6974-6:2002)
LST EN ISO 15011-2:2010 Health and safety in welding and allied processes - Laboratory method for sampling fume and gases - Part 2: Determination of the emission rates of carbon monoxide (CO), carbon dioxide (CO2), nitrogen monoxide (NO) and nitrogen dioxide (NO2) during arc wel
LST EN ISO 21663:2021 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method (ISO 21663:2020)

ZA-SANS, carbon oxygen nitrogen hydrogen ratio

SANS 12902:2007 Solid mineral fuels - Determination of total carbon, hydrogen and nitrogen - Instrumental methods

能源部, carbon oxygen nitrogen hydrogen ratio

SY 5238-1991 Methods for sample preparation of hydrogen, carbon and oxygen isotopes in natural gas

AENOR, carbon oxygen nitrogen hydrogen ratio

UNE-EN ISO 6974-5:2015 Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 5: Isothermal method for nitrogen, carbon dioxide, C1 to C5 hydrocarbons and C6+ hydrocarbons (ISO 6974-5:2014)
UNE-EN 15407:2011 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H) and nitrogen (N) content
UNE-EN ISO 6974-3:2003 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns. (ISO 6974-3:2000)
UNE-EN ISO 6974-6:2006 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 6: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns (ISO 6974-6:2002)
UNE-EN ISO 15011-2:2010 Health and safety in welding and allied processes - Laboratory method for sampling fume and gases - Part 2: Determination of the emission rates of carbon monoxide (CO), carbon dioxide (CO2), nitrogen monoxide (NO) and nitrogen dioxide (NO2) during arc wel
UNE-EN 61125:1996 UNUSED HIDROCARBON-BASED INSULATING LIQUIDS. TEST METHODS FOR EVALUATING THE OXIDATION STABILITY.

U.S. Military Regulations and Norms, carbon oxygen nitrogen hydrogen ratio

ARMY MIL-D-3945 B NOTICE 1-1996 DETECTOR KIT; CARBON MONOXIDE, COLORIMETRIC
ARMY MIL-D-3945 B-1982 DETECTOR KIT; CARBON MONOXIDE, COLORIMETRIC

NL-NEN, carbon oxygen nitrogen hydrogen ratio

NEN 6532-1986 Water - Titrimetric determination of the content of hydrogen carbonate, carbonate and hydroxide in water with a pH higher than 8,35
NEN 6523-1990 Water - A method for the calculation of the content of hydrogen carbonate, carbon dioxide and carbonate from total carbon dioxide content and the pH

United States Navy, carbon oxygen nitrogen hydrogen ratio

NAVY MIL-B-24535 A-1989 BURNER, CARBON MONOXIDE AND HYDROGEN, CATALYTIC TYPE (MARK V)

Inner Mongolia Provincial Standard of the People's Republic of China, carbon oxygen nitrogen hydrogen ratio

DB15/T 975-2016 Detection method of carbon and nitrogen isotope abundance ratio in beef and mutton of livestock products

Yunnan Provincial Standard of the People's Republic of China, carbon oxygen nitrogen hydrogen ratio

DB53/T 917-2019 Determination methods of carbon-nitrogen ratio, self-heating, ammonium-nitrate ratio and germination index in organic fertilizer maturity

API - American Petroleum Institute, carbon oxygen nitrogen hydrogen ratio

API PUBL 4574-1994 On-Road Carbon Monoxide and Hydrocarbon Remote Sensing in the Chicago Area in 1992
API PUBL 4448-1987 Field Study of Enhanced Subsurface Biodegradation of Hydrocarbons Using Hydrogen Peroxide as an Oxygen Source
API 26-60045-1978 EFFECTS OF OXIDES OF NITROGEN@ CARBON MONOXIDE AND PHOTOCHEMICAL OXIDANTS ON THE ECG DURING EXERCISE AND ON CARDIOPULMONARY FUNCTION - FINAL REPORT
API P-5170/1-1979 Hydrocarbon control strategies for oxidant control Part I Overview

Professional Standard - Petrochemical Industry, carbon oxygen nitrogen hydrogen ratio

SH/T 0656-1998 Standard test methods for instrumental determination of carbon,hydrogen,and nitrogen in petroleum products and lubricants

中华人民共和国环境保护部, carbon oxygen nitrogen hydrogen ratio

GB 4921-1985 Waste gas from manufacturing process-Determination of chemical oxygendemand and nitrogen oxide-Potassium dichromate oxidation and naphthylethylene diamine colorimetric method

工业和信息化部, carbon oxygen nitrogen hydrogen ratio

HG/T 5898-2022 Mixed gas carbon dioxide-nitrogen/helium for laser welding
YS/T 1229.4-2018 Methods for chemical analysis of crude nickel hydroxide Part 4: Determination of chlorine content Nephelometric method

Professional Standard - Nuclear Industry, carbon oxygen nitrogen hydrogen ratio

EJ/T 342-1988 Requirements for Nitrogen, Hydrogen and Oxygen Supply in Nuclear Steam Supply System of PWR Nuclear Power Plant

Professional Standard - Commodity Inspection, carbon oxygen nitrogen hydrogen ratio

SN/T 3005-2011 Test method for instrumental determination of carbon,hydrogen,nitrogen and sulfur in organic chemicals
SN/T 3950-2014 Determination of oxidative onset temperature of hydrocarbons by differential.Scanning calorimetry

Professional Standard - Electron, carbon oxygen nitrogen hydrogen ratio

SJ 2806-1987 Method for determination of trace Oxygen and Argon in electronic grade Hydrogen--Concentration gas chromatographic method
SJ 2805-1987 Method for determination of Oxygen with Argon and Nitrogen in electronic grade Hydrogen--Concentration gas chromatographic method
SJ 2803-1987 Method for determination of trace carbon dioxide in electronic grade gases--Pre-cut hydrogen flame ionzation detector method
SJ 2802-1987 Method for determination of trace Carbon dioxide in electronic grade gases--Hydrogen flame ionzation detertor method

Professional Standard - Non-ferrous Metal, carbon oxygen nitrogen hydrogen ratio

YS/T 534.4-2006 Aluminum Hydroxide Chemical Analytical Method for the Determination of Ferric Oxide by O-Phenanthrophenanthrene Spectrophotometry
YS/T 587.15-2023 Calcined coke for prebaked blocks— Part 15: Determination of total carbon,hydrogen and nitrogen contents
YS/T 534.4-2007 Chemical analysis methods of aluminium hydroxide.Part 4:Determination of iron oxide content.Orthophenanthroline photometric method

Professional Standard - Coal, carbon oxygen nitrogen hydrogen ratio

MT 220-1990 Specification for detection of carbon monoxide and nitrogen oxide in exhaust of flameproof diesel machines intended to be used in mines
MT/T 220-1990
MT 454-1995 Specifications for carbon dioxide absorbent calcium hydroxide used in compressed oxygen respirators and compressed oxygen self-rescuers

(U.S.) Ford Automotive Standards, carbon oxygen nitrogen hydrogen ratio

FORD FLTM AQ 109-01-2001 SILICATE TO HYDROXIDE RATIO - HYDROPHILIC SEALER FOR CONVERSION COATING
FORD FLTM AQ 109-1-2001 SILICATE TO HYDROXIDE RATIO - HYDROPHILIC SEALER FOR CONVERSION COATING

American National Standards Institute （ANSI), carbon oxygen nitrogen hydrogen ratio

ANSI/ASTM D5318:1997 Test Method for Hydrolyzable Chloride in Peroxy Esters and Peroxy Discarbonates (X-15-356) 92-03 Item 14

PT-IPQ, carbon oxygen nitrogen hydrogen ratio

CH-SNV, carbon oxygen nitrogen hydrogen ratio

SN 010 903-1978
SN EN ISO 21663:2021 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method (ISO 21663:2020)

NO-SN, carbon oxygen nitrogen hydrogen ratio

NS 4869-1985 Air quality - Nitrogen dioxide content in workplace atmosphere - Colometric metod

未注明发布机构, carbon oxygen nitrogen hydrogen ratio

BS ISO 8008:2005(2006) Aluminium oxide primarily used for the production of aluminium — Determination of specific surface area by nitrogen adsorption
BS EN ISO 20236:2021(2022) Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion
BS EN ISO 6974-6:2008(2009) Natural gas — Determination of composition with defined uncertainty by gas chromatography — Part 6 : Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns

IT-UNI, carbon oxygen nitrogen hydrogen ratio

UNI EN ISO 21663:2021 Solid recovered fuels - Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method

Professional Standard - Chemical Industry, carbon oxygen nitrogen hydrogen ratio

HG/T 2686-1995 Determination of Trace Hydrogen, Oxygen, Methane, Carbon Monoxide in Inert Gases Gas Chromatography with Zirconia Detector
HG/T 30032~30034-2017 Safety Technical Specifications for the Production of Nitric Acid, Hydrogen Fluoride and Sodium Percarbonate (2017)
HG/T 3073-1999 Rubber compounding ingredients.Silica,precipitated,hydrated.Determination of specific surface area - Nitrogen adsorption method

National Aeronautics and Space Administration (NASA), carbon oxygen nitrogen hydrogen ratio

NASA NACA-RM-E52H15-1952 Pressure limits of flame propagation of pure hydrocarbon-air mixtures at reduced pressure

Professional Standard - Light Industry, carbon oxygen nitrogen hydrogen ratio

QB/T 4852-2015 Determination of the carbon isotope ratio (<上标13>C/<上标12>C) of CO<下标2> in sparkling wines.Method using isotope ratio mass spectrometry

Professional Standard - Agriculture, carbon oxygen nitrogen hydrogen ratio

空气和废气监测分析方法 5.6.2-2003 Part Five Pollution Source Monitoring Chapter Six Motor Vehicle Exhaust Gas Monitoring Carbon Monoxide Hydrocarbons
1422药典化学药和生物制品卷-2010 Chapter 2 Medical Imaging Contrast Agents Section 1 X-ray and CT Contrast Agents 6. Other Carbon Dioxide

Professional Standard - Ferrous Metallurgy, carbon oxygen nitrogen hydrogen ratio

YB/T 174.4-2000 Chemical analysis for silicon nitride bonded silicon carbide product.Determination of iron oxide content.o-Phenanthroline photometric method

FI-SFS, carbon oxygen nitrogen hydrogen ratio

SFS 4869-1987

Standard Association of Australia （SAA）, carbon oxygen nitrogen hydrogen ratio

AS 1038.6.4:2005 Coal and coke - Analysis and testing - Higher rank coal and coke - Ultimate analysis - Carbon, hydrogen and nitrogen - Instrumental method

Professional Standard - Tobacco, carbon oxygen nitrogen hydrogen ratio

YC 301-2009 Store tobacco pest management.Safety regulation for mixed fumigation with phosphine and carbon dioxide

IX-EU/EC, carbon oxygen nitrogen hydrogen ratio

COM(1999) 93 FINAL-1999 Re-Examined Proposal for a Council Directive Relating to Limit Values for Sulphur Dioxide, Nitrogen Dioxide and Oxides of Nitrogen, Particulate Matter and Lead in Ambient Air