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Chemical Sampling Information |
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| Gypsum (Total Dust) |
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General Description
Synonyms: Natural Calcium Sulfate; CaSO4•2H2O; Calcium(II) sulfate dihydrate; Gypsum stone; Hydrated calcium sulfate; Mineral white
OSHA IMIS Code Number: 1367
Chemical Abstracts Service (CAS) Registry Number: 13397-24-5
NIOSH, Registry of Toxic Effects (RTECS) Identification Number: MG2360000
NIOSH Pocket Guide to Chemical Hazards, Gypsum: chemical description, physical properties, potentially hazardous incompatibilities, and more
Exposure Limits
OSHA Permissible Exposure Limit (PEL) for General Industry: 29 CFR 1910.1000 Z-1 Table -- 15 mg/m3 TWA
OSHA Permissible Exposure Limit (PEL) for Maritime: 29 CFR 1915.1000 Table Z-Shipyards -- 15 mg/m3 TWA
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 10 mg/m3 TWA; The value is for particulate matter containing no asbestos and <1% crystalline silica. (TLV listed under Calcium Sulfate)
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 10 mg/m3 TWA
Health Factors
Potential symptoms: Irritation of eyes, skin, mucous membranes, upper respiratory system; cough, sneezing, rhinorrhea (discharge of thin mucous), nosebleed; INGES. ACUTE: GI blockage if material hardens.
Health Effects: Nuisance particulate (Accumulation in Lungs) (HE19)
Affected organs: Eyes, skin, respiratory system
Note: A comparison of gypsum miners in two locations found a higher incidence of mild pneumonconionic changes in the lungs of miners working in the location where the gypsum had a higher contamination with quartz.
Date Last Revised: 10/04/2005
Literature Basis:
- NIOSH Pocket Guide to Chemical Hazards: Gypsum.
- International Chemical Safety Cards (WHO/IPCS/ILO): Gypsum.
- Oakes, D., Douglas, R., Knight, K., Wusterman, M. and McDonald, J.C.: Respiratory effects of prolonged exposure to gypsum dust. Ann. Occup. Hyg. 26(1-4): 833-840, 1982.
- Pohanish, R.P. (editor): Calcium Sulfate. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 472-474.
Monitoring Methods used by OSHA
Laboratory Sampling/Analytical Method:
* All Trademarks are the property of their respective owners.
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Page last updated: 04/06/2006
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