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Chemical Sampling Information |
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| Emery (Total Dust) |
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General Description
Synonyms: Aluminum oxide, Aluminum trioxide, Corundum, Impure corundum, Natural aluminum oxide [Note: Emery is an impure variety of Al2O3 which may contain small impurities of iron, magnesium & silica. Corundum is natural Al2O]
OSHA IMIS Code Number: 1016
Chemical Abstracts Service (CAS) Registry Number: 12415-34-8
Other Chemical Abstracts Service (CAS) Registry Number: 1302-74-5 (corundum)
NIOSH, Registry of Toxic Effects (RTECS) Identification Number: GN0231000
NIOSH Pocket Guide to Chemical Hazards, Emery: 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
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): Appendix D - Substances With No Established RELs
Health Factors
Potential symptoms: Irritation of eyes, skin, respiratory system
Health Effects: Nuisance particulates (HE19)
Affected organs: Eyes, skin, respiratory system
Notes: 1) Elemental analysis of area and personal total emery dust samples at a Mexican manufacturing facility found large amounts of aluminum, magnesium and silicon, and lower amounts of manganese, iron, zinc, nickel, vanadium, chromium and bromine. 2) Powdered silicon carbide (CAS No. 409-21-2) may also be called "emery" by its manufacturers.
Date Last Revised: 09/26/2005
Literature Basis:
- NIOSH Pocket Guide to Chemical Hazards: Emery.
- Granados-Correa, F., Garcia-Sosa, I. and Iturbe-Garcia, J.L.: Exposure to total and respirable minerals in an abrasive manufacturing facility. Am. Ind. Hyg. Assoc. J. 57(8): 753-755, 1996.
Monitoring Methods used by OSHA
Laboratory Sampling/Analytical Method:
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Page last updated: 04/06/2006
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