Published in the 'Public Health Bulletin', No. 262, 1941, this historic image, which was provided by the Center for Disease Control's (CDC), National Institute for Occupational Safety and Health (NIOSH) depicted a battery factory in which workers were in the process of assembling storage batteries. These men were stationed at a 'pasting' machine where they would paint the lead dioxide (PbO2) on to the cathode of the lead batteries. As a device containing both lead, a toxic heavy metal, and acid, in the form of sulfuric acid, batteries are potentially dangerous, both in their finished state, as well as during their manufacture. Precautions need be taken when building a battery, including the use of goggles, gloves, and filtered breathing devices. These workers were wearing filtered masks and gloves, but were without goggles, which would have prevented accidental splashes into their eyes.
CDC/ Barbara Jenkins, NIOSH
December 4, 2012