When is it an asbestos containing material, What is the Acronym - CORRECT ANSWER-When it has > 1%
asbestos, ACM
Asbestos Definition - CORRECT ANSWER-A
... [Show More] naturally occurring fibrous mineral
What is the most common type of asbestos we will encounter? - CORRECT ANSWER-Chrysotile
What are the 6 varieties that are regulated? - CORRECT ANSWER-Chrysotile (white), Amosite (Brown),
Crocidolite (Blue), Anthophyllite, Tremolite, Actinolite
What does the Acronym Ahera mean? What agency regulates Ahera? What population of people does it
protect? - CORRECT ANSWER-Asbestos, Hazard, Emergency, Response, Act...EPA, Public and Private
schools K-12, Friable and non friable asbestos containing building material (ACBM)
What is asbestos? How many varieties (and names) and in how many groups. - CORRECT ANSWERNaturally occurring mineral, 6 varieties of asbestos are regulated by EPA and OSHA, Group Serpentine
Chrysotile...Amphibole group (white), Amosite (brown), Crocidolite (blue), Anthophyllite, Tremolite,
Actinolite
Materials that contain asbestos are called ACM. What is the percent asbestos to call something ACM? -
CORRECT ANSWER->1%
The EPA uses the term "friable" for certain materials. What does the term friable mean? - CORRECT
ANSWER-crumbled, pulverized, or reduced to powder by hand pressure when dry.
The EPA categorizes ACM into three categories; what are those categories? Give an example or two for
each. - CORRECT ANSWER-Surfacing materials: ACM sprayed or troweled on surfaces (walls, ceilings,
structural members) for acoustical, decorative, or fireproofing purposes. This includes plaster and
fireproofing insulation...Thermal System Insulation - Insulation used to inhibit heat transfer or prevent
condensation on pipes, boilers, tanks, ducts and various other components o shot systems. This includes
pipe lagging, pipe wrap, block, batt, and blanket insulation; cements and "muds" and a variety of other
products such as gasket and ropes. Miscellaneous Materials --Other largely nonfriable products and
materials such s floor tile, ceiling tile, roofing flat, concrete pipe, outdoor siding, and fabrics.
What are the three major asbestos diseases emphasized in the health effects lecture? Are there any
immediate health effects from asbestos? - CORRECT ANSWER-Asbestosis; physical scarring of lung
tissues
Lung cancer; At least 50x greater chances of getting rung cancer if you smoke and are exposed to
asbestos (general occupational exposure)
Mesothelioma; a cancer of the lining of the lung or gut area (pleural or peritoneal mesothelium)
No, this is a common misconception...there are no breathing difficulties from immediate/recent
exposure.
What is the term that describes the time between asbestos exposure and the onset of the major
diseases? What are the generalized time differences for each of the the 3 major asbestos diseases? -
CORRECT ANSWER-latency period; the time between exposure and the onset of disease Asbestosis 15-30
(a lot over a long period of years), Lung Cancer 20-30 years, Mesothelioma, longest latency period and
can be from low exposure.
We use a number of acronyms to describe materials that contain asbestos. For each of the following,
what does the acronym mean and what agency uses each? ACM, ACBM, PACM, RACM - CORRECT
ANSWER-ACM - Asbestos containing material (>1%) A global term used by Federal, all agencies.
ACBM - Asbestos containing building material...EPA-AHERA friable/non-friable, interior,
porticos/walkway
RACM - Regulated asbestos containing material..EPA-Neshap, friable material and non friable which
have/will become friable
PACM Presumed asbestos containing material. OSHA, all for their asbestos standards.
Besides AHERA, the EPA also has a regulation referred to as NESHAP. What portion of industry does
NESHAP generally apply to? - CORRECT ANSWER-Demolition and renovation also waste issues
(landfills/containerization/labeling)
All RACM must be removed before demo/renovation activity.
Also, for NESHAP, Demo is also altering load bearing structural members or intentional burning as demo [Show Less]