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Publication: December 2005. For information about changes, please see the Revision History.

Chapter 27: Asbestos

Overview

Asbestos is a fibrous mineral commonly added to building materials manufactured from the 1930s to the late 1970s. Exposure to high levels of asbestos and the inhalation of asbestos fibers has been associated with an increased incidence of cancer and respiratory disease. Asbestos containing material (ACM) was used in the construction of SLAC buildings and facilities, and the abatement and/or disturbance of ACM is strictly controlled to protect the health of personnel. This chapter describes how SLAC manages ACM and the health hazards associated with exposure to asbestos.

Hazards/Impacts

When ACM is disturbed as a result of construction, maintenance, or abatement, asbestos fibers may become airborne. Asbestos fibers may also become airborne when released from deteriorating or damaged ACM. Inhalation exposure to high levels of asbestos fibers is known to cause asbestosis, lung cancer, and mesothelioma.

Scope

All buildings and facilities built before 1981 are presumed to contain asbestos. This chapter applies to personnel engaged in any activity that may damage or disturb ACM or potential asbestos containing material (PACM). ACM used in the construction of SLAC buildings and facilities known to contain asbestos include

• Roofing material and patching compound
• Wallboard and joint compound
• Floor tiles, sheet flooring, and floor tile mastic
• Vehicle brake and clutch parts
• Glues and adhesives
• Acoustic ceiling and wall tiles
• Fire doors
• Transite pipe and board
• Wall and ceiling insulation
• Machine and piping gaskets, vibration cloth, and cooling tower baffles
• Thermal system insulation (TSI) such as cement elbows and pipe wrap