Transcript 29 CFR 1910.1001

Asbestos Safety
Awareness Training
29 CFR 1910.1001
By: Chaizong Lor, Safety Coordinator
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Asbestos Safety Awareness Training
Training Objectives:
Asbestos
Friable Asbestos
Non-friable Asbestos
Common Materials that may containing Asbestos
Common Types of Asbestos
Asbestos Work Classifications
Work Practice Controls for Class III & IV Asbestos Work
Inhalation is the most common form of entry to body
Potential Diseases
Ways to Protect Yourself
Respirators & Medical Surveillance
Summary
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Asbestos
Definition:
A group of six naturally occurring minerals that
can be separated into fibers.
Amosite, Chrysotile, Tremolite, Actinolite,
Anthophyllite, and Crocidolite
Fibers DO NOT evaporate into air or dissolve in water.
Asbestos materials are referred to as being
either “Friable” or “Non-friable”.
Asbestos Containing Material (ACM) – a material
containing greater than 1% asbestos content
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Friable Asbestos
Friable materials can be crushed to powder by
hand pressure when dry, and release small
fibers as they crumble.
Friable asbestos containing materials include:
Sprayed-on asbestos insulation.
Some pipe wrapping
Some ceiling tiles
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Non-friable Asbestos
Non-friable asbestos is usually found
bonded into other materials.
It’s fibers are harder to break down into
powder, but can still be released by
cutting, grinding or sanding.
Non-friable asbestos containing
materials include:
Floor tiles
Asbestos cement pipes
Transit boards
Roofing shingles
Asbestos cement (flue infill)
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Common Materials that May Contain Asbestos
Surfacing Materials:
Sprayed on and troweled on surfaces for acoustical,
decorative, or fireproofing
Plaster and fire proof insulation
Thermal System Insulation:
Pipe wrap, cement, gaskets, and etc.
Materials used to inhibit heat transfer
condensation
or
Miscellaneous Materials:
Floor tiles
Most 9” floor tiles and few 12” in buildings build prior to 1980
Ceiling tiles, roofing felt, fabrics
Shingles, or siding
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Common Materials that May Contain Asbestos
Friction Products such as:
Asbestos Gasket
Automobile Clutch
Brake Pads
Transmission Parts
Lift Brakes
Asbestos
water tanks
Asbestos Paper Lining
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Common Types Of Asbestos
Note: The general use of asbestos is now banned. Blue and Brown
Asbestos banned in 1985, white in 1999.
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Common Types Of Asbestos
Known as “White asbestos” it
has tiny, fine fibers that are,
smooth, flexible, and curly.
It is used in asbestos cement,
vinyl floor tiles, insulation
materials, oven gloves, etc.
It makes up approximately 90%
of asbestos used world-wide.
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Common Types Of Asbestos Cont.
Known as “brown asbestos” it
has long, brittle, needle-like fibers.
It is used in high-friction application
such as brake shoes and clutches.
Heat insulation and pipe lagging.
Its fibers may be 700 times smaller
than a human hair.
Human Hair
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Common Types Of Asbestos Cont.
Know as “blue asbestos” it is soft, silky, and
flexible. It is harder than other asbestos but still
flexible and strong.
It was mainly used in thermal lagging and sprayed
coating. It is very high temperature and acid resistant
purposes.
It has been found in imported insulation board.
Used in wrapping, sheeting, piping and boiler wrap.
It is approximately 10% of the
asbestos used in the US.
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Who is at risk?
Anybody that disturbs ACM sufficiently to put
dust in the air!
Demolition Workers
Building Maintenance Workers
Gas Fitters
Joiners
Electricians
Heating and ventilating engineers
Plumbers
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Asbestos Work Classifications
Class I Asbestos Work
Activities involving the removal of TSI and surfacing ACM.
Class II Asbestos Work
Activities involving of ACM which is not TSI or surfacing material.
This includes, but is not limited to:
Removal of asbestos-containing wallboard, floor tile & sheeting.
Roofing and siding shingles and construction mastics.
Class III Asbestos Work
Activities involving repair and maintenance operations, where ACM,
including TSI and surfacing PACM, is likely to be disturbed, for
example:
TSI with asbestos containing material applied to pipes, fittings, boilers,
breeching, tanks, ducts or other structural components to prevent heat
loss or gain.
Surfacing ACM that has been sprayed, troweled-on or otherwise applied
to surfaces such as:
Acoustical plaster on ceilings and fireproofing materials on structural
members, or other materials on surfaces for acoustical, fireproofing, and
other purposes.
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Asbestos Work Classifications
Class IV Asbestos Work
Includes maintenance and custodial activities during
which employees contact but do not disturb ACM or
PACM and activities to clean up dust, waste and
debris resulting from Class I, II, and III activities.
Qualified FP&M employees, or contractors, cleaning up
debris and waste in a regulated area where respirators are
required shall wear respirators.
Waste and debris in areas where friable TSI or surfacing
materials is accessible shall be assumed to contain asbestos.
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Work Practice Controls for
Class III & IV Asbestos Work
Drilling, cutting, abrading, sanding, chipping,
breaking of ACM should be performed using drop
cloths and mini-enclosures or glove bag systems
or another isolation method.
Vacuum cleaners equipped with HEPA filters
should be used for cleanup.
Custodians use of Wet Methods, wetting agents
during asbestos handling, mixing, removal,
cutting, application, and cleanup, unless
infeasible due to creation of other hazards.
Low abrasion pads should be used at speeds
below 300rpm.
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Work Practice Controls for
Class III & IV Asbestos Work
Prompt disposal of wastes contaminated with
asbestos in leak-tight containers.
Respirators and other appropriate PPE shall be
worn where TSI or surfacing material is involved.
Broken and fallen ceiling tiles should be left in
place until identified. Only after they have been
identified as safe may they be removed.
Asbestos tiles will be removed by asbestos
abatement workers.
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Inhalation is the most
common form of entry to body
The body cannot break the asbestos
fibers down or remove them.
Fibers can become trapped in the
mucous membranes of the nose or
throat, or pass deep into the lungs.
Once they are lodged in the lung or body tissues, they
remain in place where they can cause diseases.
General Health Effect of Asbestos
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Potential Diseases
Asbestosis
A breathing disorder caused by inhaling high
levels of asbestos fibers.
Primary effects are scarring of the lung tissue
Signs and symptoms of asbestosis include:
Shortness of breath
Decreased tolerance for physical activity
Coughing
Chest pain
Symptoms may appear anywhere from 10 to 20
years after initial exposure
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Potential Diseases
Lung Cancer
A serious tumor of the bronchi covering for people
exposed to asbestos.
Signs and symptoms of lung cancer include:
Coughing and a change of breathing
Chest pains
Hoarseness
Anemia
The risk for smokers is 80 – 90 times greater
Symptoms may appear after about 15 to 30 years,
depending on the frequency and duration of asbestos
exposure
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Potential Diseases
Mesothelioma
A rare form of cancer which most often occurs in
the thin membrane lining of the lungs, chest,
abdomen, and heart.
Signs and symptoms of Mesothelioma include:
Shortness of breath
Pleural effusion
Chest pains
No increased risk for smokers
Symptoms may appear 15 to 40 years after
exposure
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Ways to Protect Yourself
Do not touch or disturb any surface
materials that may contain asbestos.
If you are uncertain – DO NOT TOUCH
Exposure to .1 fiber/cubic centimeter in an 8 hour
day is potentially hazardous. This amount is so
small you can’t even see it
Do not enter an asbestos abatement area
Report uncovered friable asbestos or damaged
asbestos material to supervisor
Do not cut or drill transit board or pipe
When removing ventilation system filters, do not
shake the filters to remove dust
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Respirators & Medical Surveillance
Respirators
Use of respirator during work activities Class I & II for
contractors.
Class III & IV for qualified FP&M employees must follow
a Respiratory Protection Program in compliance with
OSHA requirements.
Medical Surveillance
Must be instituted for employees who for a combined
total of 30 or more days per year are exposed at or
above a permissible exposure limit
Any day in which a worker engages in Class II or III
operations (or a combination thereof) on intact material
for one hour or less, while using appropriate work
practices, shall not be counted.
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Summary
Recognize potential asbestos locations
Understand the health risks
Do not disturb asbestos
Understand ways to protect yourself
Do not handle asbestos containing
materials unless authorized to do so
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Any Questions
??
Revision Dated: November 19th, 2014
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