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BS EN ISO 6974-5:2014
Natural gas. Determination of composition and associated uncertainty by gas chromatography. Isothermal method for nitrogen, carbon dioxide, C1 to C5 hydrocarbons and C6+ hydrocarbons (British Standard)
ISO 6974-5:2014 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.
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British Standards Institution [bsi]
British Standards Institution [bsi]