American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 2 ppm, 12 mg/m3 TWA; 3 ppm, 19 mg/m3 STEL; Appendix A4 - Not Classifiable as a Human Carcinogen (TLV listed as Camphor, Synthetic)
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 2 mg/m3 TWA (REL listed as Camphor (Synthetic))
NIOSH Immediately Dangerous To Life or Health Concentration (IDLH):200 mg/m3
Potential Symptoms: Irritation of eyes, skin, mucous membrane; nausea, vomiting, diarrhea; headache, dizziness, excitement, epileptiform convulsions; cough, sore throat; Ingestion Acute: Burning sensation in throat and chest; GI symptoms; confusion, seizures, unconsciousness; Skin Absorption; Hepatotoxicity without GI symptoms.
Health Effects: Irritation-Eye, Nose, Throat, Skin---Moderate (HE15) Acute Toxicity---short-term high hazard effects (HE4) CNS Effects (HE7)
International Chemical Safety Cards (WHO/IPCS/ILO): Camphor.
Mallinckrodt Baker, Inc.: Material Safety Data Sheet. DL-Camphor.
Pohanish, R.P. (editor): Camphor. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 475-476.
Uc, A., Bishop, W.P. and Sanders, K.D.: Camphor hepatotoxicity. South. Med. J. 93(6): 596-598, 2000.
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