DIN EN ISO 6974-4:2002-06
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 C[1] TO C[5] AND C[6+] HYDROCARBONS FOR A LABORATORY AND ON-LINE MEASURING SYSTEM USING TWO COLUMNS
Hardcopy , PDF
English, German
01-01-2002
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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 settings
Annex C (informative) Typical precision values
Bibliography
Describes a gas chromatographic method for the quantitative determination of natural gas constituents using a two-column system.
| DevelopmentNote |
To be used in conjunction with DIN ISO 6974-1 E and DIN ISO 6974-2 E. (12/2002)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
German Institute for Standardisation (Deutsches Institut für Normung)
|
| 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 |
| UNI EN ISO 6974-4 : 2004 | Identical |
| ISO 6974-2:2012 | Identical |
| I.S. EN ISO 6974-4:2002 | Identical |
| SN EN ISO 6974-4 : 2001 | Identical |
| ISO 6974-4:2000 | Identical |
| EN ISO 6974-4:2001 | Identical |
| BS EN ISO 6974-4:2001 | Identical |
| NF EN ISO 6974-4 : 2003 | Identical |
| NS EN ISO 6974-4 : 1ED 2001 | Identical |
| 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 7504:2015 | Gas analysis Vocabulary |
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