Asbestos Contractor/Supervisor Training Questions & Correct Solutions

Asbestos Contractor/Supervisor Training Questions & Correct Solutions Chrysotile - ANSWER The only asbestos mineral found in the serpentine group and the most common in the USA at 90-95%. "White Asbestos" Amosite - ANSWER Second most likely found asbestos. "Brown Asbestos" 5-10% Crocidolite - ANSWER "Blue Asbestos" 1-5% Actinolite - ANSWER Can be in vermiculite (often associated with Tremolite) no current production. Tremolite - ANSWER Can be in Vermiculite. Some current production in India. Anthophylite - ANSWER Rare. No current production. Serpentine - ANSWER Long-wavy structure Amphibole - ANSWER Short; rigid structure; most hazardous Friable ACM - ANSWER can be crumbled, pulverized, or reduced to powder by hand. > 1% ACM Non-friable ACM - ANSWER cannot be pulverized by hand. > 1% ACM Three categories of ACM in buildings: (according to EPA) - ANSWER Surfacing Materials (sprayed or troweled) Thermal System Insulation (TSI) Miscellaneous (ceiling tile, drywall, floor tiles) What is the typical latency period for asbestosis? - ANSWER 10- 20 years What part of the lungs does asbestosis affect? - ANSWER the alveoli What is the typical latency period for Mesothelioma? - ANSWER 30-40 years What part of the lungs does Mesothelioma affect? - ANSWER affects the mesothermic layer of the lungs What is the typical latency period for lung cancer? - ANSWER 20-30 years. PACM - ANSWER Presumed Asbestos Containing Material OSHA categories: (High-> low risk) - ANSWER Class I: TSI/ surfacing material ACM. Class II: Miscellaneous. Class III: Operation and Maintenance. Class IV: Clean- up NESHAP - ANSWER National Emission Standards for Hazardous Air Pollutants AHERA - ANSWER Asbestos Hazard Emergency Response Act (specifically pertaining to SCHOOLS) When must you notify NESHAP of an asbestos related job? - ANSWER Any project over 160 SF/260LF of RACM What is the Permissible Exposure Limit in the US. - ANSWER PEL is required to be <0.1 f/cc. What are the two types of fit-tests? - ANSWER Qualitative: Less comprehensive. With irritants. Quantitative: More comprehensive. With pressurization levels. How many layers of polyethylene must line the walls, ceilings, and floors? - ANSWER 2 layers of 6 mil. What must be done to the HVAC during an asbestos abatement project? - ANSWER 1) Turned off 2) Sealed 3) Control panel sealed, labeled and locked NESHAP classifications are: - ANSWER Demolition- Removing 1+ load-bearing member Renovation- Altering facility w/o removing 1 load- bearing member Category I NF- "resilient flooring, asphalt roofing, gaskets, or packings." Category II NF- any non-friable not "" RACM- basically any currently or will become friable material. RACM - ANSWER basically any currently or will become friable material. What are the four broad categories of respirators? - ANSWER 1) Air-purifying 2) Supplied-air 3) Self-contained breathing apparatus (SCBA) 4) Combination Supplied Air regulations - ANSWER 19.5-23.5% Oxygen 10 ppm carbon monoxide 1000 ppm carbon dioxide "Type C" system "Grade D" air Protection Factor formula - ANSWER Concentration outside mask / Concentration inside Half mask OSHA PF - ANSWER 10 Full Facepiece OSHA PF (Qualitative) - ANSWER 10 Full Facepiece OSHA PF (Quantitative) - ANSWER 50 Powered Air-Purifying Respirator (PAPR) OSHA PF - ANSWER