Verifying Gas Chromatographs at Custody-Transfer Locations

February 2017, Vol. 244, No. 2

By Bonnie Crossland, Product Manager, Emerson

Gas chromatographs (GC) play a critical role in custody-transfer operations and their accuracy literally impacts – may even determine – a company’s bottom line. Verifying accuracy is an essential function that ensures the correct operation of the analyzer at the time of testing, confirms that the GC performed properly during the periods between validations and assesses the likelihood of continued proper functioning until the next validation. Therefore, it is essential that the process: Verify the operation of the GC for the previous period. Verify the current accuracy of the GC. Check for changes in operation…

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