G Asphalt roofing rolls in bitumen

SECTION 2: Hazards identification

OSHA Emergency Overview

Prevention

Avoid breathing dust, fume, gas, mist, vapours and/or spray. Wash thoroughly after handling. Wear protective gloves and eye/face protection.

Response

Wash contaminated clothing before reuse. Storage/Disposal Dispose of content and/or container in accordance with local, regional, national, and/or international regulations. Under normal conditions of use the products listed in this MSDS are not expected to pose a physical hazard or health risk to humans. These products do not contain any form of asbestos materials. The component exposure limits and other information in this document are provided for circumstances such as heating (above 250°F), burning, cutting, sanding and/or grinding when there is potential for exposure to these components. Physical Form G Solid Color G Black Odor G Mild petroleum odor. OSHA G No data available WHMIS G No data available GHS G No data available Medical Conditions G Pre-existing lung conditions which may be aggravated if fumes/dusts are inhaled, Aggravated by Exposure

Potential health effects

Inhalation Acute (Immediate) G Temporary irritation of nose and throat may occur. Chronic (Delayed) G This product contains petroleum asphalt. If heated, there is limited evidence that derivatives of asphalt fumes may cause carcinogenic effects in animals. There is inadequate evidence to support that asphalt fumes alone are carcinogenic to humans. Skin Acute (Immediate) G Mechanical irritation of the skin/skin abrasion may occur characterized by itching or redness. Chronic (Delayed) G Drying of skin and dermatitis may occur following prolonged exposures. Eye Acute (Immediate) G Mechanical irritation of the eye may occur characterized by itching or redness. Chronic (Delayed) G No chronic effects expected. Ingestion Acute (Immediate) G Ingestion of this product unlikely. Chronic (Delayed) G No chronic effects expected. Carcinogenic Effects G When used under normal conditions, this product is not considered a carcinogen. This product contains petroleum asphalt. Asphalt fumes arise from hot asphalt. Asphalt fumes (CAS # 8052-42-4) In 1985/87, IARC (International Agency for Research on Cancer) concluded the following (a) Bitumens are not classifiable as to their carcinogenicity to humans (Group 3). (b) Extracts of steam- and air-refined bitumens are possibly carcinogenic to humans (Group 2B). IARC found that evidence for carcinogenicity from animal studies was: inadequate for undiluted air-refined bitumens; limited for steam-refined and cracking residue bitumens; sufficient for extracts of steam-refined and air-refined bitumen. IARC found that human evidence for carcinogenicity of asphalt fumes was inadequate. Studies of roofers indicated an excess of cancers; however, IARC concluded that, since roofers may be exposed also to coal-tar pitches and other materials, "the excess cancer risk cannot be attributed specifically to bitumens." In 1994, a published review of 20 epidemiology studies of asphalt workers and roofers agreed with IARC, that current human evidence is inadequate for the carcinogenicity of asphalt fumes in humans. Trace amounts of polynuclear aromatic hydrocarbons (PAHs) may be present in some asphalts and can be released upon excessive heating, which results in thermal cracking of the asphalt compounds. Some of these PAHs have been identified as having the potential to induce carcinogenic and reproductive health effects. Carcinogenic Effects CAS IARC NTP Glass, oxide, chemicals NDA Group 3-Not Classifiable Reasonably Anticipated to be Human Carcinogen as Glass wool fiber Group 2B-Possible Carcinogen Asphalt 8052-42-4 Not established Group 3-Not Classifiable

Environmental effects

G No data available.

Further information

G Hearing Conservation: Some blowing machines used to install blown-in products create elevated sound levels which may affect workers' hearing. Use of hearing protection by workers exposed above 85 dB(A) as an 8-hour TWA is recommended. See Section 12 for Ecological Information.