This volume of Processing Occupations Standard Time Data is one of ten volumes of standard time data in the 11 volume series included in DWMSTDP. Processing Occupations as categorized by the Department of Labor includes those occupations concerned with refining, mixing, compounding, chemically treating, heat treating. or similarly working materials and products. Knowledge of a process and adherence to formulae other specifications are required in some degree. Vats, stills, ovens, furnaces, mixing machines, crushers, grinders, and related equipment or machines are usually involved. This volume provides a single DoD source for Standard Time Data which can be used in the development of labor standards for: Organizations, activities, or functional areas whose primary missions correlate to processing occupations, e.g., an activity whose primary responsibility is plating chemical cleaning, sandblasting, etc. For processing operations within organizations, activities, or functional areas engaged in other than processing occupations, e.g., a degreaser operator assigned to an instrument repair shop. Work performed by personnel whose primary jobs are other than processing, but who may actually do that type work as a part of their jobs, e.g., a packer performing a degreasing operation within a supply activity.