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CEN
EN ISO 6974-4:2001

EN ISO 6974-4:2001

Current

Current

The latest, up-to-date edition.

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 6974-4:2000)

Published date

08-22-2001

Publisher

Comite Europeen de Normalisation

Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 Materials
5 Apparatus
6 Procedure
  6.1 Gas chromatographic operating conditions
  6.2 Performance requirements - Peak resolution
  6.3 Determination - Outline of the analysis
7 Expression of results
  7.1 Calculation
  7.2 Precision and accuracy
8 Test report
Annex A (informative) Procedure for setting valve timings
        and restriction setting
Annex B (informative) Final time
Annex C (informative) Typical precision values
Bibliography

Describes the gas chromatographic method for the quantitative determination of natural gas constituents using a two-column system.

Committee
CEN/TC 238
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current

14/30296490 DC : 0 BS EN 16723-2 - NATURAL GAS AND BIOMETHANE FOR USE IN TRANSPORT AND BIOMETHANE FOR INJECTION IN THE NATURAL GAS NETWORK - PART 2: AUTOMOTIVE FUEL SPECIFICATIONS
BS EN 16723-2:2017 Natural gas and biomethane for use in transport and biomethane for injection in the natural gas network Automotive fuels specification
I.S. EN 16723-2:2017 NATURAL GAS AND BIOMETHANE FOR USE IN TRANSPORT AND BIOMETHANE FOR INJECTION IN THE NATURAL GAS NETWORK - PART 2: AUTOMOTIVE FUELS SPECIFICATION
DIN EN 16723-2:2017-10 NATURAL GAS AND BIOMETHANE FOR USE IN TRANSPORT AND BIOMETHANE FOR INJECTION IN THE NATURAL GAS NETWORK - PART 2: AUTOMOTIVE FUELS SPECIFICATION
DIN EN 16726 E : 2016 GAS INFRASTRUCTURE - QUALITY OF GAS - GROUP H
I.S. EN 16726:2015 GAS INFRASTRUCTURE - QUALITY OF GAS - GROUP H
DIN EN 16723-2:2014-06 (Draft) NATURAL GAS AND BIOMETHANE FOR USE IN TRANSPORT AND BIOMETHANE FOR INJECTION IN THE NATURAL GAS NETWORK - PART 2: AUTOMOTIVE FUELS SPECIFICATION
14/30288159 DC : 0 BS EN 16726 - GAS INFRASTRUCTURE - QUALITY OF GAS - GROUP H
14/30296487 DC : 0 BS EN 16723-1 - NATURAL GAS AND BIOMETHANE FOR USE IN TRANSPORT AND BIOMETHANE FOR INJECTION IN THE NATURAL GAS NETWORK - PART 1: SPECIFICATIONS FOR BIOMETHANE FOR INJECTION IN THE NATURAL GAS NETWORK
DIN EN 16726:2016-04 GAS INFRASTRUCTURE - QUALITY OF GAS - GROUP H
UNE-EN 16726:2016 Gas infrastructure - Quality of gas - Group H
EN 16723-2:2017 Natural gas and biomethane for use in transport and biomethane for injection in the natural gas network - Part 2: Automotive fuels specification
EN 16726:2015 Gas infrastructure - Quality of gas - Group H
BS EN 16726 : 2015 GAS INFRASTRUCTURE - QUALITY OF GAS - GROUP H
DIN EN 16723-2 E : 2017 NATURAL GAS AND BIOMETHANE FOR USE IN TRANSPORT AND BIOMETHANE FOR INJECTION IN THE NATURAL GAS NETWORK - PART 2: AUTOMOTIVE FUELS SPECIFICATION

ISO 6976:2016 Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition
ISO 6974-2:2012 Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 2: Uncertainty calculations
ISO 10723:2012 Natural gas Performance evaluation for analytical systems
ISO 6143:2001 Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures
ISO 6142:2001 Gas analysis Preparation of calibration gas mixtures Gravimetric method
ISO 6974-1:2012 Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 1: General guidelines and calculation of composition
ISO 7504:2015 Gas analysis Vocabulary

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