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BS EN ISO 6974-4:2001

Current
Current

The latest, up-to-date edition.

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
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-07-2001

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
PTI/15
DevelopmentNote
Renumbers and supersedes BS ISO 6974-4 (08/2002) 2001 Version incorporates amendment 13838 to BS ISO 6974-4. Supersedes BS 3156-11.1.1(1986) and 95/123188 DC. (11/2005)
DocumentType
Standard
Pages
24
PublisherName
British Standards Institution
Status
Current
Supersedes

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
EN ISO 6974-1:2012/AC:2012 NATURAL GAS - DETERMINATION OF COMPOSITION AND ASSOCIATED UNCERTAINTY BY GAS CHROMATOGRAPHY - PART 1: GENERAL GUIDELINES AND CALCULATION OF COMPOSITION (ISO 6974-1:2012/COR 1:2012)
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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