Our DHA system is a new graphical version of the method and software system originally produced by Neil G. Johansen, Inc. for the detailed hydrocarbon analysis of petroleum products in the range of gasoline by high efficiency gas chromatography. Begun in the late 1970's as a project of ASTM Committee D.02 on Petroleum and Petroleum Products, the project was finalized in 2001 with the approval and publication of ASTM Standard Test Method (STM) D 6730. The software development began in the early 1980's as PIANO, became DHA, and then DHA_WIN with the development of Windows Visual Basic?.
Our DHA System is based on the same detailed hydrocarbon analysis developed and approved under ASTM Standard Test Method (ASTM) D-6730. This method forms the basis of today's DHA, which now takes advantage of the latest software development technologies to provide a very easy to use Graphical User Interface (GUI) that makes our DHA solution the one of the most powerful detailed hydrocarbon analysis software products in the industry.