DHA

ASTM Approves D7900-13: Light Hydrocarbons in Crude Oils

ASTM_D7900ASTM has recently announced a new standard: D7900-13 “Standard Test Method for Determination of Light Hydrocarbons in Stabilized Crude Oils by Gas Chromatography. The standard was developed in a joint effort with the Energy Institute, London and is the technical equivalent of that institute’s IP 601 standard.

D7900-13 stipulates a way to determine the boiling range distribution of hydrocarbons up to nC9. These results can be combined […]

By |2017-10-10T20:11:30+00:00February 8th, 2014|DHA, MergeIT, SimDis|

Faster D6730 DHA Using Hydrogen Carrier Gas

ASTM D6730 Detailed Hydrocarbon Analysis (DHA) is a chromatographic method that determines the individual hydrocarbon components of spark-ignition engine fuels. It is often referred to as PONA and/or PIANO analysis. The official ASTM D6730 Method specifies the use of Helium as the carrier gas.  In recent years Helium has become less available, and, as a consequence, more expensive. Switching to the use of Hydrogen as a carrier gas is not only more economical but its chemical properties affect linear velocities […]

By |2017-10-12T23:18:12+00:00December 3rd, 2010|DHA, Dragon DHA|

Envantage Dragon MergeIT Improves Crude Oil Characterization

PerkinElmer published an article in Petro Industry News (October/November 2010 edition) highlighting their S-wafer technology in an article titled “Integrating Detailed Hydrocarbon Analysis Data with Simulated Distillation to Improve the Characterisation Of Crude Oils By Gas Chromatography”. In the article Envantage MergeIT software was used to combine SimDis results with DHA results to obtain a more precise characterization of crude oils for an improved boiling point curve.

To read a summary and download a pdf of the article

By |2017-10-12T23:20:16+00:00November 24th, 2010|DHA, MergeIT, SimDis|