Asbestos Contractor/Supervisor Training With Complete Solution

Asbestos Contractor/Supervisor Training With Complete Solution Chrysotile The only asbestos mineral found in the serpentine group and the most common in the USA at 90-95%. "White Asbestos" Amosite Second most likely found asbestos. "Brown Asbestos" 5-10% Crocidolite "Blue Asbestos" 1-5% Actinolite Can be in vermiculite (often associated with Tremolite) no current production. Tremolite Can be in Vermiculite. Some current production in India. Anthophylite Rare. No current production. Serpentine Long-wavy structure Amphibole Short; rigid structure; most hazardous Friable ACM can be crumbled, pulverized, or reduced to powder by hand. > 1% ACM Non-friable ACM cannot be pulverized by hand. > 1% ACM Three categories of ACM in buildings: (according to EPA) Surfacing Materials (sprayed or troweled) Thermal System Insulation (TSI) Miscellaneous (ceiling tile, drywall, floor tiles) What is the typical latency period for asbestosis? 10-20 years What part of the lungs does asbestosis affect? the alveoli What is the typical latency period for Mesothelioma? 30-40 years What part of the lungs does Mesothelioma affect? affects the mesothermic layer of the lungs What is the typical latency period for lung cancer? 20-30 years. PACM Presumed Asbestos Containing Material OSHA categories: (High-> low risk) Class I: TSI/ surfacing material ACM. Class II: Miscellaneous. Class III: Operation and Maintenance. Class IV: Clean- up NESHAP National Emission Standards for Hazardous Air Pollutants AHERA Asbestos Hazard Emergency Response Act (specifically pertaining to SCHOOLS) When must you notify NESHAP of an asbestos related job? Any project over 160 SF/260LF of RACM What is the Permissible Exposure Limit in the US. PEL is required to be <0.1 f/cc. What are the two types of fit-tests? Qualitative: Less comprehensive. With irritants. Quantitative: More comprehensive. With pressurization levels. How many layers of polyethylene must line the walls, ceilings, and floors? 2 layers of 6 mil.