Combustible dust has been the culprit of deadly work-place blasts for decades, but it wasn’t until an explosion in 2008 that killed 14 people at the Imperial Sugar Refinery in Port Wentworth, Ga, that the issue began getting the attention it deserved. OSHA stepped in, reissuing its Combustible Dust National Emphasis Program and the industrial world became inundated with statistics, definitions and preventative measures.