Gas analysis. Conversion of gas mixture composition data

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-07-2009

Publisher

British Standards Institution

Introduction
1 Scope
2 Terms and definitions
3 Symbols and units
4 Basic principles
  4.1 Expression of gas mixture composition
  4.2 Conversion between different quantities
  4.3 Conversion between different state conditions
5 Main procedures
  5.1 Conversion between different quantities of composition
  5.2 Conversion to reference conditions
6 Practical implementation
  6.1 Conversion between quantities of composition
  6.2 Conversion of single analyte contents
  6.3 Conversion of complete compositions
  6.4 Conversion between state conditions
  6.5 Simple approximations applicable to conversion
7 Input quantities and their uncertainties
  7.1 Pure gas data
  7.2 Gas mixture data
  7.3 Rough uncertainty estimates
8 Conversion uncertainty
  8.1 General considerations
  8.2 Conversion of single analyte contents
  8.3 Conversion of complete compositions
  8.4 Uncertainty calculation using numerical differentiation
  8.5 Variances and covariances of input composition data
9 Application recommendations
Annex A (normative) - Assessment of state conditions
Annex B (normative) - Summation relations for the expression
                      of mixture properties
Annex C (informative) - Mixture component data
Annex D (informative) - Examples
Annex E (informative) - Computer implementation of recommended
                        methods
Bibliography

Describes the following quantities commonly used to express the composition of gas mixtures: - mole fraction, - mass fraction, - volume fraction, and - mole concentration, - mass concentration, - volume concentration.

Committee	PTI/15
DevelopmentNote	Renumbers and supersedes BS ISO 14912. 2006 version incorporates corrigendum to BS ISO 14912. Supersedes 01/123669 DC. (07/2009)
DocumentType	Standard
Pages	64
PublisherName	British Standards Institution
Status	Current
Supersedes	01/123669 DC : DRAFT OCT 2001 BS ISO 14912 : 2003

Standards	Relationship
ISO 14912:2003	Identical
EN ISO 14912:2006/AC:2007	Identical

ISO 6976:2016	Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition
ISO/IEC Guide 98:1993	Guide to the expression of uncertainty in measurement (GUM)
ISO 12213-3:2006	Natural gas Calculation of compression factor Part 3: Calculation using physical properties
DIN 51896-2:1994-09	GAS ANALYSIS; QUANTITIES OF COMPOSITION, COMPRESSIBILITY FACTOR - PART 2: APPLICATION
DIN 1871:1999-05	Gaseous fuels and other gases - Density and other volumetric quantities
ISO/IEC Guide 99:2007	International vocabulary of metrology Basic and general concepts and associated terms (VIM)
ISO 12213-1:2006	Natural gas Calculation of compression factor Part 1: Introduction and guidelines
ISO 7504:2015	Gas analysis Vocabulary
DIN 51896-1:1991-10	GAS ANALYSIS; QUANTITIES OF COMPOSITIONS, COMPRESSIBILITY FACTOR, BASIS
ISO 12213-2:2006	Natural gas Calculation of compression factor Part 2: Calculation using molar-composition analysis

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BS EN ISO 14912:2006

Current

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