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Title: Gas Processing Association Cooperative Testing Of Methods For The Analysis Of Natural Gas And Btu Measurements- An Evaluation Of Test Results
Author: W. J. Hines, Carl Hefley, Frank Sattler, George Mciver
Source: American Gas Association 1983
Year Published: 1983
Abstract: Twenty-one laboratories participated in a cooperative testing program of the analysis of natural gas by gas chromatography as defined in GPA Bulletin 2261-1972, GPA Standard of Analysis for Natural Gas and Similar Gaseous Mixtures by Gas Chromatography. The purpose of the testing program was to develop a statement of precision for the 1972 revision of the method, first adopted as a tentative standard in 1961 and revised and adopted as standard in 1964. Experimental design, sample collection, sample validity, statistical evaluation, and conclusions are reported. Also included is a round-robin test program of seventeen laboratories making BTU measurements with field calorimeters on the same gases used in the gas chromatography study.

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