what is gypsum with pictures

YupRocks - Pictures of the Mineral Gypsum Gallery of high resolution Gypsum pictures and specimens. Chemical Sampling Information | Gypsum (Total Dust) OSHA Permissible Exposure Limit (PEL): General Industry: 29 CFR 1910.1000 Table Z-1 - 15 mg/m 3 TWA Maritime: 29 CFR 1915.1000 Table Z-Shipyards - 15 mg/m 3 TWA ... Sheetrock | Asbestos Product and Mesothelioma Hazard Sheetrock was made by the United States Gypsum Company and at one time contained asbestos to help strengthen the drywall but asbestos has been linked to mesothelioma.    Read More

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