10/30203803 DC : 0
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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BS ISO 6974-2 - NATURAL GAS - DETERMINATION OF COMPOSITION AND ASSOCIATED UNCERTAINTY BY GAS CHROMATOGRAPHY - PART 2: UNCERTAINTY CALCULATIONS
Hardcopy , PDF
English
31-10-2012
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols (and abbreviated terms)
5 Calculation of uncertainty
Annex A (informative) - Calculation of processed component
uncertainties for the methane-by-difference approach
Annex B (normative) - Uncertainties in relative response
factors
Annex C (informative) - Alternative calculation of the
uncertainty in the value of the unknown
Bibliography
| Committee |
PTI/15
|
| DocumentType |
Draft
|
| Pages |
34
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| 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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