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BS EN ISO 6974-2:2012

Current
Current

The latest, up-to-date edition.

Natural gas. Determination of composition and associated uncertainty by gas chromatography Uncertainty calculations
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

10-31-2012

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Calculation of uncertainty
Annex A (informative) - Calculation of processed component
        uncertainties for the methane-by-difference approach
Annex B (normative) - Uncertainties of relative response
        factors
Annex C (informative) - Alternative calculation of the
        uncertainty of the value of the unknown
Bibliography

Defines the process required to determine the uncertainty associated with the mole fraction for each component from a natural gas analysis in accordance with ISO 6974-1.

This part of ISO6974 describes the process required to determine the uncertainty associated with the mole fraction for each component from a natural gas analysis in accordance with ISO6974-1.

Committee
PTI/15
DevelopmentNote
Renumbers and supersedes BS ISO 6974-2. To be read in conjunction with BS ISO 6974-1(2000). (08/2002) 2002 Version incorporates amendment 13855 to BS ISO 6974-2. Supersedes BS 3156-11.1.1(1986) and 95/123186 DC. (11/2005) Supersedes 10/30203803 DC. (10/2012)
DocumentType
Standard
Pages
28
PublisherName
British Standards Institution
Status
Current
Supersedes

BS 8609:2014 Natural gas. Calculation of carbon dioxide emission factors from composition
14/30287938 DC : 0 BS 8609 - NATURAL GAS - CALCULATION OF CARBON DIOXIDE EMISSION FACTORS FROM COMPOSITION

ISO 10715:1997 Natural gas — Sampling guidelines
ISO 6974-6:2002 Natural gas Determination of composition with defined uncertainty by gas chromatography Part 6: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns
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 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 Guide 35:2017 Reference materials Guidance for characterization and assessment of homogeneity and stability
ISO/IEC Guide 99:2007 International vocabulary of metrology Basic and general concepts and associated terms (VIM)
ISO 6974-1:2012 Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 1: General guidelines and calculation of composition
ISO Guide 31:2015 Reference materials — Contents of certificates, labels and accompanying documentation
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
ISO Guide 34:2009 General requirements for the competence of reference material producers
ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

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Hardcopy - English
PDF - English
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