. . . . . . . . . . . UCD(TM) Colorant

SECTION 2: Hazards identification

This product contains carbon black, a substance identified by the International Agency for Research on Cancer (IARC), as a

2.1 Classification of the substance or mixture

2b (possibly carcinogenic to humans) CAUTION! : May cause skin and eye irritation

Potential health effects

ACUTE EFFECTS: EYE: Exposure can cause eye irritation. Symptoms may include stinging. tearing, redness, and swelling. SKIN: May be mildly irritating. Contact with skin may produce a burning sensation. INHALATION: Toxic if inhaled; excessive exposure causes headaches, dizziness, nausea, vomiting, and loss of consciousness. INGESTION: Very hazardous in case of ingestion.

Potential chronic health

EYE: May cause conjunctivitis. INGESTION: No harmful effects by chronic exposure reported. INHALATION: Prolonged or repeated exposure may cause lung damage. SKIN: Repeated contact can cause dermatitis.

Medical Conditions Generally Aggravated by Exposure

May aggravate pre-existing eye disorders. Previous respiratory impairments. May aggravate pre-existing skin disorders. CARCINOGENICITY: Based on the presence of components (02) Crystalline silica is listed as a known carcinogen(NTP) and as a carcinogen when inhaled in the form of quartz or cristobalite from occupational sources (IARC Group 1). Based on the International Agency for Research on Cancer (IARC) conclusion that there is sufficient evidence in experimental animals for the carcinogenicity of carbon black dust and inadequate evidence of carcinogenicity in humans, IARC's overall evaluation is that carbon black dust is possibly carcinogenic to humans (Group B). Consult IARC's Monograph Volume 65. The results of the working group were based on studies involving the inhalation of carbon black and other insoluble fine dust particles. Other routes of entry were not reviewed as part of this study. This dispersion contains carbon black in a "wet out" form and does not pose an inhalation hazard. Good hygiene practices should be followed to minimize exposures to any respirable dusts. The study findings produced results consistent with the massive accumulation of fine dust particles in the lung which overwhelm the natural lung clearance mechanisms, known as the "lung overload" phenomenon, rather than from a specific chemical effect of the dust particle in the lung. Carbon Black has not been listed as a carcinogen by the National Toxicology Program (NTP) or the Occupational Safety and Health Administration (OSHA). The National Institute of Occupational Safety and Health (NIOSH) criteria document on carbon black recommends that only carbon blacks with a PAH level greater than 0.1% be considered suspect carcinogens. ---------------------------------------------------------------------------