After the two sawmill explosions earlier this year, WorkSafeBC sent green wood and beetle-kill wood dust samples to a lab. The test results conclude that both beetle-kill and green wood dust pose a high risk of explosion when their moisture is below 5% and particle size is less than 75 micrometers. Such dust is found on elevated surfaces such as rafters and beams, inside dust collectors, on the surface of air separation systems and in hot dry environments such as process equipment and light covers. So the agency stressed the importance of rigorous dust management procedures at all sawmills processing either type of wood.
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