for

SECTION 2: Hazards identification

Not a hazardous substance or preparation according to the Global Harmonized System (GHS), or not classified under GHS. If small particles are generated during further processing such as grinding, etc, may form combustible dust concentrations in air. Spills of this product may present a slipping hazard. INHALATION SIGNS AND SYMPTOMS OF EXPOSURE May cause temporary discomfort to upper respiratory tract due to mechanical irritation when exposures are above the occupational exposure limit. SKIN AND EYE CONTACT SIGNS AND SYMPTOMS OF EXPOSURE May cause irritation to skin in certain individuals. SKIN ABSORPTION SIGNS AND SYMPTOMS OF EXPOSURE Not likely to occur. INGESTION SIGNS AND SYMPTOMS OF EXPOSURE None known CARCINOGENICITY Carbon black has been evaluated by IARC as possibly carcinogenic to humans (Group 2B) based on "sufficient evidence" in animals and "inadequate evidence in humans". Recent evidence indicates that the phenomenon of carcinogenicity in the rat lung is species-specific, resulting from persistent overloading of the rat lung with poorly soluble particles <1.0 micrometer in diameter.Mortality studies of carbon black in manufacturing workers do not show an association between carbon black exposure and elevated lung cancer rates. The ACGIH (American Conference of Governmental Industrial Hygienists) classifies carbon black as A4, Not Classifiable as a Human Carcinogen. Polycyclic Aromatic Hydrocarbon (PAH) or polynuclear aromatics (PNA) content of manufactured carbon blacks: In non-adsorbed forms, some PAHs have been found to be carcinogens in animal studies.In-vitro studies indicate that the PAHs con- tained in carbon black are not bioavailable. Modern production and quality control procedures are generally able to maintain extractable PAH levels to less than 0.1% (<1000 ppm) in carbon black with PAHs regulated as carcinogens representing a smaller fraction of the extractables. Extractable PAH content 92015 CARCINOGENICITY depends on numerous factors including, but not limited to, the manufacturing process and the ability of the analytical procedure to identify and measure extractable PAHs. High purity furnace blacks contain PAHs not exceeding 0.5 PPM. There are no known human carcinogenic effects related to the PAH content of carbon blacks. Recent research has shown that the PAH content of carbon blacks is not released in biological fluids and thus not available for biological activity, according to information from Carbon Black manufacturers and the ICBA (International Carbon Black Association).

Health hazards

(BOTH ACUTE AND CHRONIC) Exposure to carbon black may cause minor skin irritation and respiratory irritation. Precautions against breathing dust should be followed when handling and working with material containing carbon black. Carbon Black (airborne, unbound particles of respirable size =<10 micrometers) is a