Combustible Dust and entry into Permit-Required Confined Spaces (PRCS)
Both OSHA PRCS standards define and quantify a Hazardous Atmosphere in terms of combustible dust using the distance one can see through the dust cloud… Hazardous atmosphere means an atmosphere that may expose employees to the risk of death, incapacitation, impairment of ability to self-rescue (that is, escape unaided from a permit space), injury, or…...
