Jack T BallingerJack T. Ballinger, Ed.D., is professor of chemistry at St. Louis Community College at Florissant Valley and the author of Chemical Technician's Ready Reference Handbook, published by McGraw-Hill. Dr. Ballinger has taught chemical technology courses fr the past 29 years. He is a member of the American Chemical Society's coordinating committee developing national skill standards for the chemical process industry. Read More Read Less