Wollastonite (USA) Surface treated

SECTION 2: Hazards identification

OSHA Classification of the substance or mixture Classification (EC 1272/2008)

Physical hazards

Not Classified

Health hazards

Not Classified

Environmental hazards

Not Classified Human health This product does not meet the criteria for classification as hazardous as defined in the

Hazard statements

NC Not Classified

Other hazards

This substance is not classified Others as PBT or vPvB according to current EU criteria. No other hazards identified

2.1 Classification of the substance or mixture

Classification (EC 1272/2008) Physical hazards Not Classified Health hazards Not Classified Environmental hazards Not Classified Human health This product does not meet the criteria for classification as hazardous as defined in the Regulation EC 1272/2008. Depending on the type of handling and use (e.g. grinding, drying), airborne respirable crystalline silica may be generated. Prolonged and/or massive inhalation of respirable crystalline silica dust may cause lung fibrosis, commonly referred to as silicosis. Principal symptoms of silicosis are cough and breathlessness. Occupational exposure to respirable crystalline silica dust should be monitored and controlled. Handling wollastonite can create dust. Long-term exposure to high concentrations of any type or size of dust can cause irritation and be uncomfortable or harmful if the body’s natural defense mechanisms are overwhelmed or incapacitated. As a general rule, control airborne dust and avoid creating or breathing dusts. Wollastonite is a naturally occurring mineral which can contain impurities in its natural form. Imerys specifically tests its wollastonite product for the presence of asbestos. Those tests ensure the absence of asbestos at levels above 60 ppm (0.006% mass ratio) with 99% confidence. Imerys continually strives to improve its testing methods to ensure the highest purity of its products. The National Toxicology Program (“NTP”), the International Agency for Research on Cancer (“IARC”), and the Occupational Safety and Health Administration (“OSHA”) have all identified asbestos as a human carcinogen. Inhalation of asbestos dust may be irritating, leading to symptoms such as a cough and chest pain. Chronic inhalation exposure may cause (i) asbestosis, interstitial fibrosis of the lung tissue, which may lead to death due to respiratory or cardiac failure; (ii) pleural effusion; (iii) pleural and peritoneal mesothelioma; (iv) bronchogenic carcinoma; (v) lung cancer; (vi) cancer of the gastrointestinal tract and larynx; and (vii) other secondary lung or respiratory infections. There also are potential health effects of non- inhalation exposure to asbestos. Environmental The product is not expected to be hazardous to the environment. Physicochemical This product has been surface treated. During handling, particularly when air conveying, the product may exhibit charge accumulation properties