Asbestos Awareness
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Transcript Asbestos Awareness
Asbestos Awareness
Objectives
Background
Standards
Contracting
Repair/Removal
Maintenance
Activities
Background
Asbestos
Origin
Properties
Uses
Diseases
Asbestos
Is
a naturally occurring fibrous mineral
which is mined like diamonds and comes
in two forms:
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Serpentine - snake like
Amphibole - needle like
Mineral
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content includes:
Silica
Water
Iron
Magnesium (may include)
Asbestos Types
Chrysotile
- 95%type used in the United
States
Amosite - Used to harden
Crocidolite - Frequently found as a
contaminant of Amosite
Origins
Found
in nature
Arctic
Deserts
Mountains
Snow
Drinking
water
Origins continued
Mined
USA
Canada
Russia
South
Italy
Africa
Properties
Tensile
strength
Flexibility
Heat Resistant
Chemical Resistant
Uses
Historical
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480 BC - Candle wicks
Egyptians wove asbestos into cremation shrouds
Romans used in textiles like cremation shrouds, lamps,
napkins and table cloths
Wide spread uses in the late 1800 and 1900
Present Day
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Acoustical spray-on asbestos
TSI -Thermal system insulation
brakes/clutches
vinyl floor tile
Diseases
Asbestosis - Scarring of the lungs due to cell
damage from inhalation of asbestos fibers.
Mesothelioma - Cancer of the lining around
the lungs called the mesothelium. Fatal
Lung
Cancer - Cancer of the bronchioles.
Synergistic effect with cigarette smoking.
Standards
COMDTINST
6260.16A
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CFR 1910.1001 (General Industry)
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CFR 1926.1101 (Construction)
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CFR 61.156 (NESHAPS)
Vocabulary
ACM: Asbestos-containing material. Material which contains one or
more percent asbestos.
Friable/Nonfriable: Friable-ACM which can be crumbled under hand
pressure. Nonfriable-ACM which can not be crumbled or become
airborne easily such as floor tile or transite.
TSI: Thermal system insulation
PACM: Presumed asbestos-containing material. TSI or surfacing
materials installed prior to 1980.
Competent person/Qualified person: Someone who is capable of
identifying existing and predictable hazards in the surroundings or
work conditions which are unsanitary, hazardous or dangerous
especially in regards to asbestos and who is authorized to select the
appropriate control strategy and can take prompt corrective actions to
eliminate them.
Vocabulary of Standards
PEL: OSHA Permissible Exposure Limit-limit which is based on an 8hour time weighted average and can not be exceeded. (This is law.)
TWA: Averaged airborne concentration of a substance over a given
period of time such as eight hours.
Excursion Limit: A 30 minute limit which must not be exceeded more
than twice per day.
TLV: a time weighted average concentration for a normal 8-hour work
day and a 40-hour work week, to which nearly all workers may be
repeatedly exposed, day after day, without adverse effects.
(recommendation from ACGIH).
Criteria
PEL
- 0.01 f/cc
Excursion Limit - 1.0 f/cc
Program Elements
Responsibilities
Asbestos
Management Plan
Identification
Repair
and Removal
Asbestos Management Plan
Designation
of a Coordinator
Identification
Inventory
Labeling
Management in Place
Identification
Sampling - Sampling should be done as
outlined in the handout provided and
provided to MLCPAC (kse) to process for
analysis.
Analysis
lab.
- Analysis is done by an accredited
Sampling
Who can Sample - Legally the person sampling must
be A CIH or certified by attending an AHERA course
Training Requirements to Sample - Classes referred
to as AHERA certified by the EPA
Uses of Samples Results - Samples taken by
personnel who are not certified to take samples can
only be used for establishing the cost of the project.
The can not be used by the contractor.
Analysis
PLM-Polarized
Light Microscopy
TEM-Transmission
Electron Analysis
Labels
DANGER
CONTAINS ASBESTOS FIBERS
AVOID CREATING DUST
CANCER AND LUNG DISEASE
HAZARD
Repair and Removal
Prohibited
Contract
PACM
Activities
Concerns
Prohibited Activities
Coast
Guard personnel are prohibited
from repairing or removing asbestoscontaining materials.
Except
at the CG Yard, Base Ketchikan
and underway casualty repair activities.
Contract Concerns
MLCPAC
Inform
(kse) Review spec packages
contractors
Standards
to be followed
Possible presents of asbestos
Recommend
independent consulting
firm to oversee the abatement.
Signs
Maintenance Activities
Involving ACM
Buffing
floor tiles
Replacing
gaskets
Replacing
brake pads
Definitions for Maintenance
Operations
Wet Methods: Wetting the material to be removed
prior to disturbing it. Prefer the use of amended
water over plain water.
Amended Water: Water which has had a chemical
added to make it penetrate and adhere to the material
be removed more readily.
HEPA: high efficiency particulate air. A filter or
filtration system designed to trap and retain 99.97 %
of all particles 0.3 micrometers or greater.
Maintenance Procedures
Involving ACM
Buffing
and waxing floor tiles
Must
have a heavy wax coating
No abrasive buffers
Gasket
Must
Brake
material replacement
be done using wet methods
replacement
Must
use HEPA vacuum drum to catch fibers
from asbestos brakes or
Interim wet methods
Prohibited Procedures
Sanding,
drilling, grinding, sawing with
high speed abrasive discs, anything that
causes asbestos fibers to be released
from the material.
Dry
sweeping, shoveling or other forms
of dry clean-up and use of compressed
air to remove asbestos debris.
Actual Abatement Activities
Beyond
the scope of this training.
Standards
are:
Complicated
Lengthy
Confusing
Require
extensive training
Summary
Asbestos is used throughout the Coast Guard in
many ways, e.g. insulation, gaskets, brakes, etc.
Exposure to asbestos can cause diseases that can be
fatal.
Asbestos must be identified, inventoried, labeled,
removed or managed in place.
Coast Guard personnel are prohibited from working
with asbestos (with notable exceptions).
If personnel must work with asbestos, they must
have extensive training.
Who & how this applies, at
Activities San Diego
Where to get more
information
MLCPAC
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(kse)
Coast Guard Island - (510) 437-3893
District health and safety representatives
Headquarters
Consulting
services