792556-A, 792555-A, 792557-A

SECTION 2: Hazards identification

OSHA Emergency Overview: Elevated concentrations of airborne dust may be irritating to the eyes, skin, and respiratory tract.

Principle Routes of Exposure

Inhalation, eye contact, skin contact, ingestion

Potential health effects

Eyes: Irritant Skin: Irritant Ingestion: Irritant Inhalation: Irritant Aluminum: Irritation eyes and respiratory system. Carbon: Irritation eyes, skin, and respiratory system. Chromium: Irritation eyes, skin, and respiratory system, sensitization dermatitis, lung fibrosis; oxidizing chromium metal may generate hexavalent chromium, which is a human carcinogen (OSHA, IARC, and NTP). Cobalt: Cough, dyspnea, wheezing, decreased pulmonary function, Weight loss, dermatitis, diffuse nodular fibrosis, respiratory hypersensitivity, asthma. Possible human carcinogen (IARC). Manganese: Parkinson’s, asthenia, insomnia, mental confusion, metal fume fever, dry throat, tightness in chest, dyspnea, rales, flu-like fever, low back pain, vomiting, malaise, fatigue, kidney damage. Molybdenum: Irritation to eyes, skin, respiratory system, anorexia, incoordination, dyspnea, anemia. Nickel: Sensitization dermatitis, allergic asthma, pneumonitis. Reasonable anticipated to cause cancer (IARC and NTP). Silicon: Irritation to respiratory system. Titanium: Irritation of eyes, skin, respiratory system, respiratory disease. Tungsten: Irritation to eyes, skin, respiratory system, diffuse pulmonary fibrosis, loss of appetite, nausea, coughing, blood changes. 1 CONTINUED: SECTION 2. HAZARD IDENTIFICATION:

Acute Health Hazards

Irritation, dyspnea, flu-like symptoms

Health hazards

Respiratory hypersensitivity, Parkinson’s disease, dermatitis, cancer

Medical Conditions Generally Aggravated by Exposure

Asthma and/or other pulmonary diseases Carcinogenicity OSHA Chromium ACGIH Nickel (A1), Chromium (A1), Cobalt (A3), Molybdenum (A3) NTP Chromium, Nickel IARC: Chromium, Cobalt (2B), Nickel SECTION 2 NOTES: OSHA - Occupational Safety and Health Administration, U.S. NTP-National Toxicology Program, U.S. Department of Health and Department of Labor Human Services OSHA regulated chemicals marked with “yes” Group K: known to be human carcinogens Group R: reasonably anticipated to be human carcinogens IARC - International Agency for Research on Cancer ACGIH-American Conference of Governmental Industrial Hygienists Group1: carcinogenic to humans Group A1: confirmed human carcinogen Group 2A: probably carcinogenic to humans Group A2: suspected human carcinogen Group 2B: possibly carcinogenic to humans Group A3: confirmed animal carcinogen with unknown relevance to humans