Industries that use sand as part of the manufacturing procedure could expose employees to respirable crystalline silica (quartz, cristobalite, and/or tridymite). Of particular concern are industries where foundries utilize sand as part of the metal casting operation and blasting operations that make use of sand as the blast media. Fortunately, Envirochem are a UKAS accredited laboratory who can sample and analyse respirable dust and give an indication of the percentage of silica present and so determine whether dust levels exceed the workplace exposure limit of 4mg/m3 (Taken from HSE EH40/2005 Revised in 2011).
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