NOX-RUST 501 LS

Hazardous Ingredients

OSHA Component Wt% Recommended Exposure Limits (TWA) [1]Petroleum Asphalt 40-45 ACGIH TLV: 5 mg/m3 (for fumes) CAS #8052-42-4 NIOSH: 5 mg/m3 (ceiling limit) Aliphatic Petroleum Solvent 48-53 OSHA PEL: 100 ppm CAS #64742-88-7 and/or #64742-47-8 ACGIH TLV: 100 ppm and/or #8052-41-3 ACGIH STEL: 200 ppm Hydrogen Sulfide <0.08 OSHA PEL: 20 ppm 7783-06-4 ACGIH TLV: 10 ppm ACGIH STEL: 15 ppm Aromatic Petroleum Distillates 1-5 None Established CAS #64742-95-6 [1]See Section 3. SECTION 3: HEALTH HAZARD INFORMATION Primary Routes of Entry: Inhalation, skin absorption. Acute Effects: Inhalation of vapors may cause nose, throat, and mucous membrane irritation, and nausea, headaches or dizziness, and central nervous system depression, including drowsiness, loss of coordination, and unconsciousness. Prolonged or repeated skin contact with cold product may result in dryness and irritation of the skin. Prolonged contact with clothing saturated in petroleum distillates can cause second degree burns. Long term skin exposure to asphalt can increase sensitivity to the sun and cause discoloration. Eye contact may cause severe irritation, redness, tearing and blurred vision. If ingested, may cause mouth, throat and gastrointestinal tract irritation and upset with possible nausea, vomiting and diarrhea. Aspiration of petroleum distillates into the lungs can cause severe chemical pneumonitis which can be fatal. Chronic Effects: Prolonged or repeated skin contact with these products may result in irritation and dermatitis. Studies of workers exposed to asphalt have not established an association between asphalt and cancer or other lung disease in man. However this petroleum based product contains a variable amount of polycyclic aromatic hydrocarbons which have been shown to cause cancer and respiratory damage in laboratory animals. Carcinogenicity Petroleum Asphalt In March 1987, the International Agency for Research on Cancer (IARC) classified extracts of steam and air refined bitumen’s (such as mineral spirits cutback asphalt) as possibly carcinogenic to humans (Group 2B). This classification was based on combined evaluation of published human and animal studies. IARC concluded that the human studies did not provide adequate evidence that extracts of steam and air refined bitumen’s caused cancer in humans. No epidemiological study of workers exposed on workers exposed only to bitumen’s is available. The 2B classification was substantially based on experimental animal studies. Some bitumen’s (asphalt) diluted, dissolved or liquified in solvents (e.g. cutback asphalt) have produced skin cancer in laboratory animals at the site of application. NIOSH recently conducted mouse skin painting studies using selected fractions of asphalt fume condensate. Skin application of the condensate fractions resulted in skin tumors in laboratory mice. Based on skin painting date, IARC has concluded that there is sufficient evidence of carcinogenicity of those extracts. IARC regards it prudent to treat a material for which there is sufficient evidence of carcinogenicity in animals as if it is possibly carcinogenic in humans. Intermittent or occasional skin contact with petroleum asphalt’s is not expected to have serious health effects as long as good personal hygiene measures, such as those outlined in the Material Safety Data Sheet, are followed. Pre-Existing Medical Conditions Aggravated by Exposure: Chronic respiratory or skin conditions may worsen from exposure to these products.