SS-EN-ISO-6974-1 › Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 1: General guidelines and calculation of composition (ISO 6974-1:2012)
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2012/AC:2013 EDITION - April 4, 2013
This part of ISO 6974 gives methods for calculating component mole fractions of natural gas and specifes the data processing requirements for determining component mole fractions. This part of ISO 6974 provides for both single and multiple operation methods and either multi-point calibration or a performance evaluation of the analyser followed by single-point calibration. This part of ISO 6974 gives procedures for the calculation of the raw and processed (e.g. normalized) mole fractions, and their associated uncertainties, for all components. The procedures given in this part of ISO 6974 are applicable to the handling of data obtained from replicate or single analyses of a natural gas sample.
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SS-EN ISO 6974-1:2012
May 28, 2012
EN ISO 6974-1:2012(IDT); ISO 6974-1:2012(IDT)