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We buy on specifications, and have for about 30 years. The oils and greases so specified are used in plant operations and for use in cars and trucks. This includes both those initially manufactured and those in company service. In some instances routine physical tests alone constitute acceptance and in others the specification may be the first screen with final selection by some practical proof of ability to operate successfully. It was about 30 years ago that the Chemical Laboratory was given the assignment of writing specifications for materials, including those for oils and greases. The business of supplying materials, including oils, to large industries is of such magnitude that vendors are eager to assist in developing the most economic supply. In general, the detailed uses which large buyers, such as the automotive industry, make of the oils are well known to the large oil companies. Their cooperation has been in very large measure responsible for the success of this specification buying, since they have made it their business to know our wants and uses and have helped us and themselves.
McCloud, J. L.
Head of Chemical Engineering, Ford Motor Co., Dearborn, Mich.