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crystalline silica cas

CAS number 14808607 NIOSH REL 005 mgm 3 TWA NIOSH considers crystalline silica to be a potential occupational carcinogen as defined by the OSHA carcinogen policy 29 CFR 1990 Current OSHA PEL Crystalline quartz respirable 250 mppcfSiO 2 5 TWA 10 mgm 3 SiO 2 2 TWA Crystalline quartz total dust 30 mgm 3 SiO 2 2 TWA Cristobalite Use the value

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