Posted Calculations/Analytical Test Methods

Chromatograph Report

The analytical test method that covers the determination of the chemical composition of natural gas is GPA (Gas Processors Association) Standard 2261-00.

The calculation used to determine the CHDP (cricondentherm) is the Peng Robinson Revised equation of state.

Sulfur (H2S) Report

ASTM D 4468-85 Standard Test Method for Total Sulfur in Gaseous Fuels by Hydrogenolysis and Rateometric Colorimetry.

Perry Gas Streams
ASTM D 5504-94 Standard Test Method for Determination of Sulfur Compounds in Natural Gas and Gaseous Fuels by Gas Chromatography and Chemiluminescence.