EN ISO 6974-4:2001
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)
22-08-2001
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
|
| Standards | Relationship |
| UNE-EN ISO 6974-4:2003 | Identical |
| NBN EN ISO 6974-4 : 2002 | Identical |
| NEN EN ISO 6974-4 : 2001 | Identical |
| SS-EN ISO 6974-4:2002 | Identical |
| UNI EN ISO 6974-4 : 2004 | Identical |
| I.S. EN ISO 6974-4:2002 | Identical |
| PN EN ISO 6974-4 : 2006 | Identical |
| SN EN ISO 6974-4 : 2001 | Identical |
| ISO 6974-4:2000 | Identical |
| BS EN ISO 6974-4:2001 | Identical |
| NF EN ISO 6974-4 : 2003 | Identical |
| NS EN ISO 6974-4 : 1ED 2001 | Identical |
| DIN EN ISO 6974-4:2002-06 | Identical |
| 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 |
| 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 |
| 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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