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Description:This 1952 drawing depicted an historical drawing provided by the Center for Disease Control's (CDC), National Institute for Occupational Safety and Health (NIOSH), detailing the design of a Detrex Degreaser, Model IDCR-700, which was used to remove grease from “coil steel”, introduced during the manufacture process. The grease, used as a rust prevention measure, must be removed before parts are painted and assembled. The machine used to degrease the parts consists of a large, square vat with electrical coils on the bottom. The tank was filled with liquid trichloroethane, a halogenated hydrocarbon (HHC), which was heated, creating a vapor that removed grease from suspended steel parts. HHCs are a cardiovascular, or blood toxicant. In the 1940s and 1950s, the Industrial Hygiene Division (IHD) investigated hazards associated with many types of manufacturing activities. This design was an example of a measure meant to improve workplace safety by keeping vapors from escaping.
The NIOSH Historic Photo Collection began as the “picture file” of the Industrial Hygiene Division of the U.S. Public Health Service (USPHS), c. 1930-1960. It is a unique collection of mid-20th Century images of American workers and workplaces and documents occupational safety and health research of that era. The collection consists of approximately 1,000 original photographs and schematic drawings.
High Resolution: Click here for hi-resolution image (14.98 MB)
Content Providers(s):CDC/ Barbara Jenkins, NIOSH
Creation Date:1952
Photo Credit:Unknown
Links:United States Environmental Protection Agency (EPA)
CDC – Nat. Institute of Occupational Safety and Health (NIOSH) – About NIOSH
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.