Suck-Up

SECTION 2: Hazards identification

EMERGENCY OVERVIEW This product is a non combustible, chemically inert mineral. This mineral sample contains a small amount of natu- rally-occurring crystalline siilica as quartz. Prolonged overexposure to respirable crystalline silica may cause lung disease (silicosis). IARC, in Monograph 68, has concluded that crystalline silica inhaled in the form of quartz from occupational sources is carcinogenic to humans (Group 1); however carcinogenicity was not detected in all indus- trial corcumstances studied. Because applications and exposure to respirable quartz in this product with normal use is well below the

Health hazards

INGESTION: No adverse effects expected with unused material. INHALATION: Inhalation of excessive concentrations of dust may cause irritation of mucous membranes and upper respiratory tract. EYE: Contact may cause mechanical irritation and possible injury. SKIN: No adverse effects expected. SENSITIZATION: No adverse effects expected. CHRONIC/CARCINOGENICITY: Inhalationn of excessive concentrations of any dust, including this material, may lead to lung injury. this product contains crystalline silica. Excessive inhalation of respirable crystalline silica may cause silicosis, a progressive, disabling and fatal disease of the lung. Symptoms may incllude cough, shortness of breath, wheezing and reduced pulmonary function. the International Agency for Research on Cancer (IARC), in Monograph 68 has concluded that crystalline silica inhaled in the form of quartz or cristobalite, from occupational sources is carcinogenic to humans (Group 1). However, in making the overall evaluation, the Working Group noted that carcinogenicity was not detected in all industral corcumstances studied. Carcinogenicity may be dependent on inherent characteristics of the crystalline silica or on external factors affecting its biological activity or distribution of its polymorphs. The National Toxicology Program (NTP) classifies crystalline silica as a known carcinogen. Because applications and exposure data indicate that exposure to respirable quartz in this product with normall use is well below the

Medical Conditions Generally Aggravated by Exposure

None currently known.