BS ISO 6974-2 : 2001 AMD 13855
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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NATURAL GAS - DETERMINATION OF COMPOSITION WITH DEFINED UNCERTAINTY BY GAS CHROMATOGRAPHY - PART 2: MEASURING-SYSTEM CHARACTERISTICS AND STATISTICS FOR PROCESSING OF DATA
15-07-2002
23-11-2012
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and subscripts
4.1 Symbols
4.2 Subscripts
5 Procedure
5.1 Step 1: Determination of the optimal response
functions
5.2 Step 2: Selection of the response functions to
be used in practice
5.3 Step 3: Routine calibration with a working-
reference gas mixture
5.4 Step 4: Calculation of non-normalized component
mole fractions
5.5 Step 5: Calculation of non-normalized component
standard deviations
5.6 Step 6: Calculation of normalized component mole
fractions
5.7 Step 7: Calculation of normalized component
standard deviations
5.8 Step 8: Calculation of uncertainty and
repeatability of the results
5.9 Relationship between ISO 6974-2 and ISO 6976
Annex A (informative) Critical values of t
Annex B (informative) Example
Annex C (informative) Relative response factors (K)
Bibliography
This part specifies the data processing for the tailored analysis of natural gas. It determines the measuring system characteristics and the statistical approach to data handling and error calculation with the aim of defining the uncertainty in the mole fractions of the component measured.
| Committee |
PTI/15
|
| DevelopmentNote |
Together with BS ISO 6974-1, BS ISO 6974-3, BS ISO 6974-4 and BS ISO 6974-5 it supersedes BS 3156-11.1.1(1986). (03/2001) Renumbered and superseded by BS EN ISO 6974-2 Supersedes 95/123186 DC (08/2002)
|
| DocumentType |
Standard
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO 6974-2:2012 | Identical |
| ISO 6976:2016 | Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition |
| ISO 6974-1:2012 | Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 1: General guidelines and calculation of composition |
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