Crusher Plant Dust Suppression Silica Compliance amp Safety
Compliance and safety for silica. if you work in a profession that involves crushing asphalt, concrete or rocks (e.g. mining, milling or construction), you’re probably aware of osha’s tightening permissible exposure limit (pel) for respirable crystalline silica (table 1 of osha standard 29 cfr .).the new standard – 50 micrograms per cubic meter with an active level of 25.