ISO 6974-5:2014

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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 is an international standard that outlines a method for determining the composition of natural gas using gas chromatography, specifically focusing on the measurement of nitrogen, carbon dioxide, and individual C1 to C5 hydrocarbons, along with a combined measurement of C6+ hydrocarbons (all hydrocarbons with a carbon chain length of 6 or greater) in a natural gas sample;