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EVS-EN 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 6974-5:2014)

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Kehtiv alates 04.08.2014
Alusdokumendid
ISO 6974-5:2014; EN ISO 6974-5:2014
Tegevusala (ICS grupid)
75.060 Maagaas
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Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
04.08.2014
Põhitekst
05.03.2002
Põhitekst
This part of this International Standard describes a gas chromatographic method for the quantitative
determination of the content of nitrogen, carbon dioxide and C1 to C5 hydrocarbons individually and
a composite C6+ measurement, which represents all hydrocarbons of carbon number 6 and above in
natural gas samples. It is applicable to the analysis of gases containing constituents within the working
ranges given in Table 1.

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EVS-EN ISO 6974-1:2012

Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 1: General guidelines and calculation of composition (ISO 6974-1:2012)
Uusim versioon Kehtiv alates 05.06.2012
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EVS-EN ISO 6974-2:2012

Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 2: Uncertainty calculations (ISO 6974-2:2012)
Uusim versioon Kehtiv alates 05.06.2012
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EVS-EN ISO 6974-4:2002

Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 4: Determination of nitrogen, carbon dioxyde and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using two columns
Uusim versioon Kehtiv alates 05.03.2002
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EVS-EN ISO 6974-3:2018

Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 3: Precision and bias (ISO 6974-3:2018)
Uusim versioon Kehtiv alates 19.12.2018