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Material Safety Data Sheet <br /> Material Name : LIMESTONE ID : C -MS -AT - <br /> 2003ADMWLS <br /> B : Component Analysis - LD60/LC60 <br /> Quartz ( 14808-604 ) <br /> Oral LD50 Rat: 500 mg/kg <br /> Carcinogenicity <br /> A : General Product Information <br /> There may be a relationship between silicosis and certain cancers . <br /> B : Component Carcinogenicity <br /> Quartz ( 14808 -604 ) <br /> ACGIH : A2 - Suspected Human Carcinogen <br /> NIOSH : potential occupational carcinogen <br /> NTP : Known Human Carcinogen (Select Carcinogen ) <br /> IARC : Monograph 68 [ 1997 ] ( listed under Crystalline silica inhaled in the form of quartz or cristobalite <br /> from occupational sources) ( Group 1 (carcinogenic to humans)) <br /> * * * Section 12 - Ecological Information <br /> Ecotoxicity <br /> A : General Product Information <br /> This material is not expected to be harmful to aquatic life . <br /> B : Component Analysis - Ecotoxicity - Aquatic Toxicity <br /> No ecotoxicity data are available for this product' s components . <br /> Environmental Fate <br /> This material shows no bioaccumulation or food chain concentration toxicit otential . <br /> * * * Section 13 - Disposal Considerations <br /> US EPA Waste Number & Descriptions <br /> A : General Product Information <br /> No components are identified as hazardous wastes . <br /> B : Component Waste Numbers <br /> No EPA Waste Numbers are applicable for this product's components . <br /> Disposal Instructions <br /> If this material becomes a waste it does not meet the criteria of a hazardous waste as defined by USEPA RCRA <br /> regulations . More stringent state or local regulations may apply . Combining this material with another may alter <br /> this classification . <br /> * * * Section 14 - Transport Information <br /> US DOT Information <br /> Shipping Name : None necessary . <br /> Additional Info . : None , <br /> International Transportation Regulations <br /> This product is not regulated as a hazardous material by the United States ( DOT) or Canadian (TDG ) <br /> transportation regulations . <br /> * * * Section 15 - Regulatory Information <br /> US Federal Regulations <br /> A : General Product Information <br /> TSCA - All naturally occurring components of this product are automatically included in the USEPA TSCA <br /> Inventory List per 40 CFR 710 . 4 (b) . All other components are on the USEPA TSCA Inventory List . <br /> Page 4 of 6 Issue Date : 09/ 11 /12 Revision : 1 . 0101 Print Date : 9/11 /2012 <br /> Prepared by the MTI Environmental Health and Safety Services Department <br />