Natural gas. Determination of composition with defined uncertainty by gas chromatography Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using two columns

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

07-15-2001

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 Materials
5 Apparatus
6 Procedure
  6.1 Gas chromatographic operating conditions
  6.2 Performance requirements - Peak resolution
  6.3 Determination - Outline of the analysis
7 Expression of results
  7.1 Calculation
  7.2 Precision and accuracy
8 Test report
Annex A (informative) Procedure for setting valve timings
                      and restriction setting
Annex B (informative) Final time
Annex C (informative) Typical precision values
Bibliography

Describes the gas chromatographic method for the quantitative determination of natural gas constituents using a two-column system.

Committee	PTI/15
DevelopmentNote	Renumbers and supersedes BS ISO 6974-4 (08/2002) 2001 Version incorporates amendment 13838 to BS ISO 6974-4. Supersedes BS 3156-11.1.1(1986) and 95/123188 DC. (11/2005)
DocumentType	Standard
Pages	24
PublisherName	British Standards Institution
Status	Current
Supersedes	BS 3156-11.1.1:1986 95/123188 DC : DRAFT JUN 1995 BS ISO 6974-4 : 2000 AMD 13838

Standards	Relationship
UNE-EN ISO 6974-4:2003	Identical
NBN EN ISO 6974-4 : 2002	Identical
NEN EN ISO 6974-4 : 2001	Identical
UNI EN ISO 6974-4 : 2004	Identical
I.S. EN ISO 6974-4:2002	Identical
SN EN ISO 6974-4 : 2001	Identical
ISO 6974-4:2000	Identical
EN ISO 6974-4:2001	Identical
NF EN ISO 6974-4 : 2003	Identical
NS EN ISO 6974-4 : 1ED 2001	Identical
DIN EN ISO 6974-4 E : 2002	Identical
DIN EN ISO 6974-4:2002-06	Identical

ISO 6976:2016	Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition
ISO 6974-2:2012	Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 2: Uncertainty calculations
ISO 10723:2012	Natural gas Performance evaluation for analytical systems
ISO 6143:2001	Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures
ISO 6142:2001	Gas analysis Preparation of calibration gas mixtures Gravimetric method
EN ISO 6974-1:2012/AC:2012	NATURAL GAS - DETERMINATION OF COMPOSITION AND ASSOCIATED UNCERTAINTY BY GAS CHROMATOGRAPHY - PART 1: GENERAL GUIDELINES AND CALCULATION OF COMPOSITION (ISO 6974-1:2012/COR 1:2012)
ISO 6974-1:2012	Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 1: General guidelines and calculation of composition
ISO 7504:2015	Gas analysis Vocabulary

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BS EN ISO 6974-4:2001

Natural gas. Determination of composition with defined uncertainty by gas chromatography Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using two columns

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Abstract

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