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Title: Evaluation Of LNG Sampling-Measurement Systems For Custody Transfer
Author: W.R. Parrish, J. m. Arvidson, J.F. Labrechue
Source: American Gas Association 1978
Year Published: 1978
Abstract: This paper describes the results of a systematic evaluation of equipment and procedures for sampling and determining composition of liquefied natural gas (LNG) from flowing streams. Laboratory and field test results show that the precision of the computed heating values of samples taken with the recommended sampling-measurement system could be within 0.30 percent of this, 0.06 percent is due to the random error in the composition analysis by gas chromatography. The accuracy of the composition measurement depends upon the accuracy of the gas analysis. The paper describes the recommended system and the proper operating conditions.

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