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I.S. EN ISO 6974-6:2005

Current
Current

The latest, up-to-date edition.

NATURAL GAS - DETERMINATION OF COMPOSITION WITH DEFINED UNCERTAINTY BY GAS CHROMATOGRAPHY - PART 6: DETERMINATION OF HYDROGEN, HELIUM, OXYGEN, NITROGEN, CARBON DIOXIDE AND C[1] TO C[8] HYDROCARBONS USING THREE CAPILLARY COLUMNS
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2005

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

Foreword
Introduction
1 Scope
2 Normative references
3 Principle
  3.1 Analysis of natural gas samples
  3.2 Analysis of natural gas substitutes
4 Materials
5 Apparatus
6 Procedure
  6.1 Operating conditions
  6.2 Performance requirements
  6.3 Determination
7 Calculation
8 Precision
9 Test report
Annex A (informative) Typical precision values
Bibliography

Explains a gas chromatographic method for the quantitative determination of the content of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C[1] to C[8] hydrocarbons in natural gas samples using three capillary columns.

DocumentType
Standard
Pages
30
PublisherName
National Standards Authority of Ireland
Status
Current

Standards Relationship
ISO 6974-6:2002 Identical
EN ISO 6974-6:2005 Identical

ISO 10715:1997 Natural gas — Sampling guidelines
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 6974-4:2000 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 10723:2012 Natural gas Performance evaluation for analytical systems
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 C8 using two packed columns
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
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

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