During a 38-year career with Pennzoil, Dr. Sardisco directed the analytical department of the company’s technology division. Among other achievements, he oversaw the development of Pennzoil’s standards for lube plants and the installation of the X-ray fluorescence spectrometers used to assay products.

Although he was thinking about retirement in the early 1990s, his expertise was still very much in demand. As concerns about the environment and the effect of pollution grew, so did the need for significant changes in the formulation of petroleum products.

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ASI Standards - Model 100 -Film