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Why gas chromatography uses nitrogen

Why gas chromatography uses nitrogen, Total:112 items.

In the international standard classification, Why gas chromatography uses nitrogen involves: Analytical chemistry, Quality, Products of the textile industry, Testing of metals, Air quality, Water quality, Tobacco, tobacco products and related equipment, Natural gas, Products of the chemical industry, Petroleum products in general, Lubricants, industrial oils and related products.

VN-TCVN, Why gas chromatography uses nitrogen

TCVN 3756-1983 Natural gas.Method for the determination of oxygen, nitrogen and methane by gas chromatography

American Society for Testing and Materials (ASTM), Why gas chromatography uses nitrogen

ASTM E1140-95 Standard Practice for Testing Nitrogen/Phosphorus Thermionic Ionization Detectors for Use In Gas Chromatography
ASTM E1140-95(2017) Standard Practice for Testing Nitrogen/Phosphorus Thermionic Ionization Detectors for Use In Gas Chromatography
ASTM D5475-93(1997) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM D5475-93(2002) Standard Test Method for Nitrogen- and Phosphorus-Containing Pesticides in Water by Gas Chromatography with a Nitrogen-Phosphorus Detector
ASTM E1140-95(2000) Standard Practice for Testing Nitrogen/Phosphorus Thermionic Ionization Detectors for Use In Gas Chromatography
ASTM E1140-95(2005) Standard Practice for Testing Nitrogen/Phosphorus Thermionic Ionization Detectors for Use In Gas Chromatography
ASTM E1140-95(2010)e1 Standard Practice for Testing Nitrogen/Phosphorus Thermionic Ionization Detectors for Use In Gas Chromatography
ASTM D7213-14 Standard Test Method for Boiling Range Distribution of Petroleum Distillates in the Boiling Range from 100 °C to 615 °C by Gas Chromatography
ASTM D6352-14 Standard Test Method for Boiling Range Distribution of Petroleum Distillates in Boiling Range from 174 °C to 700 °C by Gas Chromatography
ASTM D6352-19 Standard Test Method for Boiling Range Distribution of Petroleum Distillates in Boiling Range from 174 ℃ to 700 ℃ by Gas Chromatography
ASTM D7213-15 Standard Test Method for Boiling Range Distribution of Petroleum Distillates in the Boiling Range from 100&x2009;&xb0;C to 615&x2009;&xb0;C by Gas Chromatography
ASTM D6352-15 Standard Test Method for Boiling Range Distribution of Petroleum Distillates in Boiling Range from 174&x2009;&xb0;C to 700&x2009;&xb0;C by Gas Chromatography
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 D7500-08 Standard Test Method for Determination of Boiling Range Distribution of Distillates and Lubricating Base Oilsx2014;in Boiling Range from 100 to 735x00B0;C by Gas Chromatography
ASTM D7500-14 Standard Test Method for Determination of Boiling Range Distribution of Distillates and Lubricating Base Oils—in Boiling Range from 100 °C to 735 °C by Gas Chromatography
ASTM D7500-15 Standard Test Method for Determination of Boiling Range Distribution of Distillates and Lubricating Base Oils&x2014;in Boiling Range from 100&x2009;&xb0;C to 735&x2009;&xb0;C by Gas Chromatography

Group Standards of the People's Republic of China, Why gas chromatography uses nitrogen

T/CAQI 328-2023 Specification for verification and evaluation of nitrogen generators for liquid chromatography mass spectrometers
T/CNIA 0016-2019 Determination of Hydrogen Chloride, Nitrogen, Oxygen and Total Carbon Content in Recycled Hydrogen for Polysilicon by Gas Chromatography

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Why gas chromatography uses nitrogen

GB/T 17592.1-1998 Textiles--Test method of the use of banned azo colourants--Gas chromatography/mass spectrography method
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 28794.5-2012 Determination of natural gas composition by gas chromatography under certain uncertainty Part 5: Determination of nitrogen, carbon dioxide and hydrocarbons from C1 to C5 and C6+ by three chromatographic columns in laboratory and on-line process systems
GB/T 27894.4-2012 Natural gas.Determination of composition with defined uncertainty by gas chromatography.Part 4:Determination of nitrogen,carbon dioxide and C<下标1> to C<下标5> and C<下标6><上标+> hydrocarbons for a laboratory and on-line measuring system using two columns
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 27894.5-2012 Natural gas-Determination of composition with defined uncertainty by gas chromatography.Part 5:Determination of nitrogen,carbon dioxideand C1 to C5and C6+hydrocarbons for a laboratory and on-line process application using thr

Professional Standard - Textile, Why gas chromatography uses nitrogen

FZ/T 01133-2016 Textile.Rapid screening method of the banned azo colorants.Gas chromatography-mass spectrometry method

Natural Gas Processor's Association (NGPA), Why gas chromatography uses nitrogen

GPA STD 2177-2003 Analysis of Natural Gas Liquid Mixtures Containing Nitrogen and Carbon Dioxide by Gas Chromatography
GPA STD 2103-2003 Tentative Method for the Analysis of Natural Gas Condensate Mixtures Containing Nitrogen and Carbon Dioxide by Gas Chromatography
GPA STD 2186-2002 Method for the Extended Analysis of Hydrocarbon Liquid Mixtures Containing Nitrogen and Carbon Dioxide by Temperature Programmed Gas Chromatography

RU-GOST R, Why gas chromatography uses nitrogen

GOST 32459-2013 White phosphorus. Determination in water by gas chromatography with nitrogen-phosphorus detector
GOST R ISO 17734-1-2017 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry. Part 1. Isocyanates using dibutylamine derivatives
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 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 ISO 17734-2-2017 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry. Part 2. Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives
GOST 31371.5-2008 Natural gas. Determination of composition with defined uncertainty by gas chromatography method. Part 5. Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line process application using three columns

German Institute for Standardization, Why gas chromatography uses nitrogen

DIN EN ISO 6974-5:2014-10 Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 5: Isothermal method for nitrogen, carbon dioxide, C<(Index)1> to C<(Index)5> hydrocarbons and C<(Index)6+> hydrocarbons (ISO 6974-5:20...
DIN EN ISO 6974-4:2002-06 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 4: Determination of nitrogen, carbon dioxide and C<(Index)1> to C<(Index)5> and C<(Index)6+> hydrocarbons for a laboratory and on-line me...
DIN 50450-4:1993 Testing of materials for semiconductor technology; determination of impurities in carrier gases and dopant gases; determination of C<(Index)1>-C<(Index)3>-hydrocarbons in nitrogen by gas-chromatography
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 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 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 (ISO 6974-5:2014); German version EN ISO 6974-5:2014
DIN EN ISO 6974-3:2002 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 6974-3:2000); German v

Professional Standard - Commodity Inspection, Why gas chromatography uses nitrogen

SN/T 1045.2-2002 Method for the determination of banned azo colourants in dyed textiles and leather products for import and export.Gas chromatography/mass spectrography method
SN/T 1045.2-2010 Determination of banned azo colourants in dyed textiles and leather products for import and export- Part 2: Gas chromatography/mass spectrography method
SN/T 3786.1-2014 Rapid screening method of the banned azo colorants in textiles on import and export.Part 1:Gas chromatography-mass spectrometry method
SN/T 1045.3-2002 Method for the determination of banned azo colourants in dyed textiles and leather products for import and export.Gas chromatography method
SN/T 1045.3-2010 Determination of banned azo colourants in dyed textiles and leather products for import and export- Part 3: Gas chromatography method

British Standards Institution (BSI), Why gas chromatography uses nitrogen

BS EN ISO 10695:2000 Water quality. Determination of selected organic nitrogen and phosphorus compounds. Gas chromatographic methods
BS EN ISO 6974-5:2014 Natural gas. Determination of composition and associated uncertainty by gas chromatography. Isothermal method for nitrogen, carbon dioxide, C1 to C5 hydrocarbons and C6+ hydrocarbons
BS ISO 17734-1:2013 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry. Isocyanates using dibutylamine derivatives
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 ISO 17734-2:2013 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry. Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives
BS EN ISO 6974-4:2001 Natural gas. Determination of composition with defined uncertainty by gas chromatography. Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using two columns
BS EN ISO 6974-4:2000 Natural gas. Determination of composition with defined uncertainty by gas chromatography. Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using two columns
BS EN ISO 6974-5:2001 Natural gas. Determination of composition with defined uncertainty by gas chromatography. Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line process application using three columns

International Organization for Standardization (ISO), Why gas chromatography uses nitrogen

ISO 22634-1:2019 Cigarettes — Determination of benzo[a]pyrene in cigarette mainstream smoke using GC/MS — Part 1: Method using methanol as extraction solvent
ISO 22634-2:2019 Cigarettes — Determination of benzo[a]pyrene in cigarette mainstream smoke using GC/MS — Part 2: Method using cyclohexane as extraction solvent
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
ISO 17734-1:2013 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry.Part 1: Isocyanates using dibutylamine derivatives
ISO 17734-1:2006 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry - Part 1: Isocyanates using dibutylamine derivatives
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 17734-2:2006 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry Part 2: Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives (Second Edition)
ISO 17734-2:2013 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry.Part 2: Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives
ISO 6974-6:2002 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 6974-6:2002/cor 1:2003 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; Technical Corrigendum 1
ISO 6974-5:2000 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 5: Determination of nitrogen, carbon dioxide and C<(Index)1> to C<(Index)5> and C<(Index)6+> hydrocarbons for a laboratory and on-line process application usi

Indonesia Standards, Why gas chromatography uses nitrogen

SNI 7334.1-2009

Association Francaise de Normalisation, Why gas chromatography uses nitrogen

NF ISO 22634-2:2020 Cigarettes - Dosage du benzo[a]pyrène dans le courant principal de la fumée de cigarette par CG/SM - Partie 2 : méthode utilisant du cyclohexane comme solvant d'extraction
NF X20-510-5*NF 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
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 X20-510-4*NF EN ISO 6974-4:2003 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 4 : determination of nitrogen, carbon dioxide and C1 up to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using two columns.

Danish Standards Foundation, Why gas chromatography uses nitrogen

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/EN ISO 6974-4:2001 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 measuring system using two columns
DS/EN ISO 6974-5:2001 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 5: Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line process application using three columns

Korean Agency for Technology and Standards (KATS), Why gas chromatography uses nitrogen

KS I ISO 17734-1:2014 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry — Part 1: Isocyanates using dibutylamine derivatives
KS I ISO 17734-1:2019 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry — Part 1: Isocyanates using dibutylamine derivatives
KS I ISO 17734-1:2007 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry-Part 1:Isocyanates using dibutylamine derivatives
KS H ISO 22634-1:2019 Cigarettes — Determination of benzo[a]pyrene in cigarette mainsteam smoke using GC/MS — Part 1: Method using methanol as extraction solvent
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 17734-2:2014 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry — Part 2: Amines and aminoisocyanates using dibutylamine and ethylchloroformate derivatives
KS I ISO 17734-2:2019 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry — Part 2: Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives
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 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 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 I ISO 17734-2:2007 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry-Part 2:Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives
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
KS I ISO 6974-6:2008 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
KS I ISO 6974-4-2006(2016) 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
KS I ISO 6974-5:2006 Natural gas-Determination of composition with defined uncertainty by gas chromatography-Part 5:Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons fora laboratory and on-line process application using three columns
KS I 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,

KR-KS, Why gas chromatography uses nitrogen

KS I ISO 17734-1-2019 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry — Part 1: Isocyanates using dibutylamine derivatives
KS H ISO 22634-1-2019 Cigarettes — Determination of benzo[a]pyrene in cigarette mainsteam smoke using GC/MS — Part 1: Method using methanol as extraction solvent
KS I ISO 17734-2-2019 Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry — Part 2: Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives
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 I ISO 6974-4-2022 Natural gas Determination of composition with defined uncertainty by gas chromatography Part 4: Determination of nitrogen, carbon dioxide and C 1 to C 5 and C 6+ hydrocarbons for a laboratory and on l

Lithuanian Standards Office , Why gas chromatography uses nitrogen

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 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 6974-5:2003 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 5: Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line process application using three columns (ISO 6974-
LST EN ISO 6974-4:2003 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 measuring system using two columns (ISO 6974-4:200

AENOR, Why gas chromatography uses nitrogen

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 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 ISO 6974-4:2003 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 measuring system using two columns. (ISO 6974-4:20

European Committee for Standardization (CEN), Why gas chromatography uses nitrogen

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 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
EN ISO 6974-5:2001 Natural Gas - Determination of Composition with Defined Uncertainty by Gas Chromatography - Part 5: Determination of Nitrogen, Carbon Dioxide and C1 to C5 and C6+ Hydrocarbons for a Laboratory and On-Line Process Application Using Three Columns
EN ISO 6974-4:2001 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 Measuring System Using Two Columns

未注明发布机构, Why gas chromatography uses nitrogen

BS EN ISO 6974-4:2001(2002) 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 measuring system using two columns
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

CEN - European Committee for Standardization, Why gas chromatography uses nitrogen

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