Abstract
The U.S. Chemical Safety & Hazard Investigation Board has begun an informational program directed to industries that potentially have conditions that could lead to a combustible dust explosion. Such conditions could occur in chemical and pharmaceutical manufacturing facilities. The board announced the effort on April 30 in Wisconsin near the scene of a dust accident that killed five workers and injured 14 at a corn-processing facility last year. The explosion destroyed most of the plant. The likely source of combustible dust at the Didion Milling facility in Cambria was corn dust produced during milling, according to information CSB released in Wisconsin. Combustible dust comes from many sources, CSB Chairperson Vanessa Sutherland notes, citing chemical and pharmaceutical manufacturing, metal and plastics fabrication, food production, and more. Dust from organic or inorganic materials can burn given an ignition source, she says. Dust can cause an explosion when it is dispersed in oxygen
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