Asbestos Management and Control Program
Introduction
Fibrous asbestos materials have been used for many years as sprayed
coatings, fire protection substances, heat and/or sound insulation
products, and asbestos cement pipe products. When these items are in
good condition and not disturbed, they do not present a health hazard,
however their location must be determined and identified. A suitable
notice must also be posted in any work area where such asbestos
materials are present. This is necessary to inform the college staff
and/or any sub-contract workers who may be operating in the same area.
Those sites which are known to contain asbestos must also be regularly
inspected to ensure that the materials containing asbestos [MCA] remain
in an non-deteriorated state.
Definitions
| Asbestos |
is
the term used to identify a group of fibrous silicates. Several types
have been used in construction, including, but not limited to:
Chrysotile [white asbestos {most common}],
Amosite [brown asbestos],
Crocidolite [blue asbestos],
Actinolite,
Anthophyllite and Tremolite. |
| Asbestosis |
is a chronic lung disease resulting from prolonged exposure to asbestos dust. |
| Encapsulation |
means
that friable material containing asbestos is treated with a sealant
which penetrates the material and binds all the fibres together. |
| Enclosure |
means
that friable material containing asbestos is separated from the
habitable environment in a building by physical barriers such as
Gyproc, plywood, metal sheeting, etc. |
| Friable Material |
means
a material, which when dry, can easily be crumbled or powdered by hand.
It also means the material that is crumbled and powdered. Friable
material containing asbestos may appear:
- fluffy or spongy [always applied by spraying]
- irregular, soft surface [usually applied by spraying]
- textured, dense, fairly firm surface [usually applied by trowelling]. |
| HEPA Filter |
is a High Efficiency Particulate Aerosol filter that is at least 99.97% efficient in collecting 0.3 micron diameter aerosols. |
| Material Containing Asbestos [MCA] |
means
a manufactured article containing 1% or more of asbestos by weight at
the time of manufacture or other materials which contain 1% or more
asbestos as determined by suitable analytical techniques. |
| Respirator |
means a device worn by a person which prevents that person from inhaling harmful airborne substances |
General Restrictions
No TRU employee/student shall knowingly cut, drill or in anyway alter
the condition of suspected or confirmed material containing asbestos
without specific training in safe work procedures relating to the
handling of this potential health hazard.
All
removal or encapsulation operations shall be performed only by asbestos
abatement specialists who have proven their ability to safely perform
these procedures to the satisfaction of the Workers' Compensation Board
[WCB], Occupational Health and Safety or designate and the appropriate
Facilities Services Manager.
Reporting and Sampling Procedure
When working with insulating materials, any substance which
is obviously not fibreglass or not specifically known to be
"asbestos free", and has not been tested for asbestos
content shall be treated as if it were a material containing
asbestos [MCA].
Reporting Procedure
In those instances where employees/students encounter products
suspected of containing asbestos, the following procedure shall be
complied with:
- Post a notice on the suspect
materials stating "Material suspected of containing asbestos. Contact
Occupational Health and Safety or Facilities Services Manager for
details";
- Promptly notify Occupational Health and
Safety and the appropriate Facilities Services Manager of the location
and estimated amount of the suspected MCA;
- Accompany Occupational Health and Safety or designate to the site;
NOTE
No
employee/student of TRU shall attempt to remove or take samples of any
materials suspected of containing asbestos without proper, specific
training.
Sampling - General Precautions
Collection of samples from materials suspected of containing asbestos
must be done in accordance with recognized acceptable procedures in
order to avoid unnecessary exposure to asbestos fibres. The following
precautions are required:
- Do not sample while the area is in
use.
- Only personnel required for sampling
should remain in the area.
- Where materials differ in appearance,
individual samples should be taken of each obviously different
materials.
- The person conducting the sample collection
shall wear a suitable respirator approved for protection against
asbestos dust. The fit of this respirator shall be in accordance
with the manufacturers instructions.
- Spray the material with a light mist
of water to prevent fibre release during sampling.
- The sample container shall be held
away from the face during actual sampling.
- The container used to collect the sample(s) must penetrate to the full depth of the material.
- Do not disturb the material any more than necessary;
If pieces break off during sampling, wet-clean the floors and areas where they have fallen.
- Small
amounts of this material shall be placed in plastic bags, sealed,
labelled as possibly containing asbestos and included with any
hazardous waste.
- Excessive sampling should be discouraged to avoid disturbance of the material.
Sampling Procedure
Sampling can only be performed by authorized personnel following these procedures:
- Hold the sampling container away from the face during sampling.
- Use
a small container such as a plastic 35mm film canister or small
unbreakable jar with a secure lid. The container should be dry and
clean.
- Gently twist the open end of the container into
the material until a core of the material falls into the container. A
sample can also be taken by using a sharp knife to cut or scrape off a
piece of material and then placing it into the container. Protective
paints, coatings and/or finishes must be penetrated in order to provide
an accurate sample.
- Tightly close the container and
wipe the exterior with a damp cloth to remove any loose material. Place
the cloth in a plastic bag, seal it and label it for possible disposal
with hazardous waste.
- Securely tape the container lid to prevent accidental opening during shipping or handling.
- Label the sample container.
The label should identify the building, sampling site, date collected,
who did the collection, and the number of the container used. Each
sample number should be a unique number to avoid later confusion. - Ship the sample to an accredited laboratory for analysis.
- Place duct tape over the sample point to prevent any further fibre release.
Asbestos Abatement Work [Sub-Contract]
Due to the specialized nature of asbestos hazard abatement work, only
proposals, bids or tenders from recognized firms shall be considered.
Companies wishing to engage in such work for TRU must provide the
following information with all tenders, bids or proposals:
- A
clearance letter from the Workers' Compensation Board - Assessment
Division stating that the payment of all assessment premiums are
up-to-date; and
- A certificate of insurance acceptable to the Bursar which covers any damage to the TRU facility during the abatement work; and
- Proof that all personnel involved in the abatement have been properly trained; and
- An
asbestos abatement plan including detailed safe work procedures or
other information required by all applicable regulations. Copies of
these documents shall be supplied to Occupational Health and Safety,
Facilities Services Manager and other appropriate personnel as required.
Where
work is awarded or directed to a specific contractor, they shall be
responsible for completing the necessary Notice of Project - Asbestos
[NOPA] form and submitting it to the W.C.B. No work shall be commenced
until a copy has been returned from the W.C.B. with their appropriate
NOPA No. assigned.
All asbestos abatement work shall be done
in accordance with recognized safe work procedures and in strict
compliance with the Workers' Compensation Board of B.C. [Industrial
Health and Safety Regulations].
The performance of a
contractor engaged in asbestos abatement work shall be monitored by a
representative of TRU who shall be thoroughly familiar with asbestos
abatement work, and shall not be employed by the contractor. The
individual(s) involved in monitoring this contract may be a consultant
hired by the college specifically for this purpose.
Notice Of Project
To comply with the WCB IH&S Regulation 34.16 (3), the W.C.B. shall
be notified in writing, before beginning any asbestos abatement work
which involves:
- Removing, encapsulating or enclosing asbestos materials in buildings or structures.
- Demolishing,
dismantling or repairing any part of a structure or building that
contains asbestos insulating material or where asbestos products have
been manufactured.
Prepared Notice of Project
[NOPA] forms are available from the W.C.B. or from Occupational Health
and Safety for this purpose. [A sample form is provided at the end of
this procedure].
Should work have been commenced without
the required notice, all work shall be ceased until approval to
commence has been received from the W.C.B.
Identification / Notification Relating to Work Areas Containing Asbestos
Those TRU facilities and/or work areas in which materials containing
asbestos, are known to exist, shall have a booklet posted which
contains information on the location of the materials containing
asbestos, together with a copy of this procedure.
This
booklet shall be accessible to all workers in the area, and to any
maintenance personnel, who may be required to service equipment in this
work area.
Inspections
Work areas identified as having materials containing asbestos [MCA]
shall be inspected at least annually by Occupational Health and Safety
or designate to ensure that the materials have not deteriorated.
Should
deterioration of the MCA's be noted, suitable corrective measures shall
be taken immediately to control and/or remove the hazard.
Personal Protective Equipment [PPE]
Should it be necessary for any employee or student of the college to
cut, repair, remove, or otherwise handle any MCA, suitable personal
protective equipment [PPE], appropriate for the hazard shall be worn by
all persons involved. The following table is provided as a guide:
Suggested Personal Protective Equipment for Asbestos Work
[The WCB regulations may require higher protection] |
| P.P.E. |
Low Risk |
Moderate Risk |
High Risk |
| Respiratory Protection |
Non-powered, air purifying respirator approved for use with asbestos fibres. |
Non-powered, air purifying respirator approved for use with asbestos fibres. |
[PAPR]
Powered Air Purifying Respirator equipped with a HEPA filter and a full
facepiece, or full face pressure demand air supplied respirators. |
Procedures
The booklet entitled Safe Handling of Asbestos - A Manual of Standard
Practice [6th Printing - January 1992], produced by the W.C.B., shall
be consulted prior to any TRU staff being required to handle any
Material Containing Asbestos.
Disposal
Disposal of any MCA, shall be placed in impervious [heavy gauge
plastic] bags, effectively sealed and suitably labelled as containing
asbestos materials. These bags shall be subsequently transferred to a
suitable disposal site in compliance with all applicable legislation.
The disposal of such materials shall be coordinated by the Occupational Health & Safety Department.
REFERENCES
Ministry of Labour 1983. The Control and Management of Friable Asbestos
Materials. Province of B.C., Ministry of Labour, Occupational
Environment Branch. Victoria, B.C.
W.C.B. 1978. Industrial Health & Safety Regulations including all
revisions to July 1, 1990. Workers' Compensation Board of B.C.,
Richmond, B.C.
W.C.B. 1992. Safe Handling of Asbestos - A Manual of Standard Practices
Sixth Printing. Workers' Compensation Board of B.C., Richmond, B.C.