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New ASTM D7668 Method for PAC's Herzog CID 510

ILS Results Shows the Precision of the CID 510 Is Significantly Better Than Referee Method ASTM D613

HOUSTON, TX--(Marketwired - April 15, 2014) - PAC, a leading global provider of advanced analytical instruments for laboratories and online process applications, developed the newly released ASTM D7668 "Standard Test Method for Determination of Derived Cetane Number (DCN) of Diesel Fuel Oils-Ignition Delay and Combustion Delay Using a Constant Volume Combustion Chamber Method" for the PAC Herzog CID 510. It provides highly accurate Derived Cetane Number (DCN) analysis for diesel fuels with excellent correlation to the CFR Engine.

As part of the method development process, ASTM and the Energy Institute conducted an extensive interlaboratoy study in March of 2013. In the ILS, 17 laboratories participated from the United States and Europe to compare the cetane number determined with the referee method, ASTM D613 (CFR Engine Technology) and the derived cetane number determined with the ASTM D7668 (CID 510). The precision of the CID 510 (ASTM D7668) from the ILS study is much better than traditional CFR Engine technology (ASTM D613), as well as other CVCC instruments (ASTM D7170 and ASTM D6890). In addition to high precision, the CID 510 provides excellent correlation to the mean value of the CFR Engine.

"With other technologies, refineries had to compensate for less precise centane number results in Diesel by adding more cetane improver to the process just to make sure they do not go below the minimum specification requirement for cetane number," says David Tran, PAC Vice-President for Product Management and Marketing. "With the excellent precision and correlation of our CID 510 technology, refineries are able to run their process closer to the true specification limit for the cetane number of diesel, allowing them to add just the right amount of Cetane improvers and achieve significant cost savings. For a refinery producing 100,000 barrels of Diesel per day, operating at 1 cetane number closer to the specification could save as much as $800,000 USD per year."

In addition to high precision, the CID 510 has significant benefits. It is easy to use with fully automated measurement and one push button operation, as well as automated calibration. It also contains enhanced safety features, such as a built-in fire monitoring and suppression system, over pressure protection for the fuel injection system and combustion chamber, and a fuel level sensor for the injection system. The CID 510 is a benchtop unit, which means it is much smaller than the traditional CFR engine technology that typically required its own room. 

PAC is a leading global provider of advanced analytical instruments for laboratories and online process applications in industries such as refinery, petrochemical, biofuels, environmental, food & beverage, and pharmaceutical. To provide its customers with cutting edge technology, PAC leverages significant R&D resources to support its core technologies, including chromatography, elemental analysis, physical properties, and fuels composition. PAC's product portfolio includes leading product lines with long histories of developing innovative instrumentation: AC Analytical Controls, Advanced Sensors, Antek, Alcor, Cambridge Viscosity, PetroSpec, PSPI, ISL and Walter Herzog. For more information, visit www.paclp.com, or contact the company's headquarters at 8824 Fallbrook Dr., Houston, Texas 77064, Tel. (U.S.) 800.444.TEST, or 281.940.1803.

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