I.S. EN ISO 6976:2016
Current
The latest, up-to-date edition.
NATURAL GAS - CALCULATION OF CALORIFIC VALUES, DENSITY, RELATIVE DENSITY AND WOBBE INDICES FROM COMPOSITION (ISO 6976:2016)
Hardcopy , PDF
English
01-01-2016
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National Foreword
European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Principles
6 Behaviour of ideal and real gases
7 Calculation of calorific value on a molar basis
8 Calculation of calorific value on a mass basis
9 Calculation of calorific value on a volume basis
10 Calculation of associated properties
11 Uncertainty of calculation
12 Tables of data
Annex A (normative) - Values of auxiliary constants
Annex B (normative) - Formulae for uncertainty calculations
Annex C (informative) - Conversion factors
Annex D (informative) - Example calculations
Bibliography
Describes methods for the calculation of gross calorific value, net calorific value, density, relative density, gross Wobbe index and net Wobbe index of natural gases, natural gas substitutes and other combustible gaseous fuels, when the composition of the gas by mole fraction is known.
| DocumentType |
Standard
|
| Pages |
74
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| ISO 6976:2016 | Identical |
| SN EN ISO 6976 : 2016 | Identical |
| NEN EN ISO 6976 : 2016 | Identical |
| NS EN ISO 6976 : 2005 | Identical |
| UNE-EN ISO 6976:2017 | Identical |
| DIN EN ISO 6976:2015-06 (Draft) | Identical |
| UNI EN ISO 6976 : 2008 | Identical |
| EN ISO 6976:2016 | Identical |
| NBN EN ISO 6976 : 2016 | Identical |
| BS EN ISO 6976:2005 | Identical |
| NF EN ISO 6976 : 2017 | Identical |
| I.S. 329:2015 | GAS DISTRIBUTION MAINS (EDITION 3) |
| ISO 6974-2:2012 | Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 2: Uncertainty calculations |
| ISO/IEC Guide 99:2007 | International vocabulary of metrology Basic and general concepts and associated terms (VIM) |
| ISO 14912:2003 | Gas analysis — Conversion of gas mixture composition data |
| ISO 80000-1:2009 | Quantities and units — Part 1: General |
| ISO 6974-1:2012 | Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 1: General guidelines and calculation of composition |
| ISO 20765-2:2015 | Natural gas Calculation of thermodynamic properties Part 2: Single-phase properties (gas, liquid, and dense fluid) for extended ranges of application |
| ISO/TR 29922:2017 | Natural gas Supporting information on the calculation of physical properties according to ISO 6976 |
| 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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