Posted Calculations/Analytical Test Methods

Procedures used for Obtaining Gas Samples

API Chapter 14-1 - Methods for Obtaining Natural Gas Samples for Analysis by Gas Chromatography.

A monthly composite sample is collected using a flow-proportional sample system.

Analytical Test Methods

GPA 2261-00 - Method of Analysis for Natural Gas and Similar Gaseous Mixtures by Gas Chromatography

Composite sample is tested by chromatographic analysis each month.

Calculation Methods

GPA 2145-09 - Physical Constants for the Paraffin Hydrocarbons and Other Components of Natural Gas, Data Given in both English and SI Units

GPA 2172-96 - Method for Calculation of Gross Heating Value, Specific Gravity and Compressibility Factor of Natural Gas Mixtures from Compositional Analysis