Asbestos Contractor/Supervisor Training/ 94 Q&A/ .

Asbestos Contractor/Supervisor Training/ 94
Q&A/ 2024-2025.

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

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, 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



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