Gas Quality Industry Standards Utilized

Chromatograph Standards:

API 14.1

(Collection and Handling of Natural Gas Samples for Custody Transfer)

ASTM D 1945

(Standard Test Method for Analysis of Natural Gas by Gas Chromatography)

GPA 2172

(Calculation of Gross Heating Value, Relative Density and Compressibility Factor for Natural Gas Mixtures from Compositional Analysis.

ISO 6976

(Calculation of calorific values, relative density and Wobbe index from composition)

GPA 2145

(Table of Physical Constants of Paraffin Hydrocarbons and Other Components of Natural Gas)

Online Analyzers:

API 14.1

(Collection and Handling of Natural Gas Samples for Custody Transfer)

ASTM D4084

(Standard Test Method for Analysis of Hydrogen Sulfide in Gaseous Fuels – Lead Acetate Reaction Rate Method)

ASTM D4468

(Standard Test Method for Total Sulfur in Gaseous Fuels by Hydrogenolysis and Rateometric Colorimetry)

ASTM D5454

(Standard Test Method for Water Vapor Content in Gaseous Fuels Using Electronic Moisture Analyzer)

ASTM D1142

(Standard Test Method for Water Vapor Content of Gaseous Fuels by Measurement of Dew-Point Temperature)

Field Tests:

ASTM D 4810

(Standard Test Method for Hydrogen Sulfide in Natural Gas Using Length-of-Stain Detector Tubes)