Labconco Class I Enclosure Models 3980423 - Manual (Page 28)

Chapter 4: High Performance Features and Safety Precautions
Product Service 1-800-522-7658 24
24
27. HEPA Filter Access Port to access HEPA filter during filter changing
procedures. For harmful powders and particulates, the true bag-in/bag-out
procedure is used to properly dispose of the contaminated HEPA filter. See
Figure 4-2.
28. Utility Shelves (Not Shown) allows the user to hold items on shelves
inside the enclosure. See Chapter 7.
29. UV Closure Panel provides protection when the UV lamp is on. The panel
must be in place for the UV lamp to work.
Safety Precautions
1. Although the enclosure has been engineered to maintain optimum operator
safety, caution should always be used while working. Prior to using the
enclosure, check to make sure that the exhaust blower is operating and that
air is entering the enclosure at its specified face velocity. The use of an
airflow monitor is recommended to alert the user to a problem with airflow.
2. Use good housekeeping in the enclosure at all times. Clean up spills
immediately. Periodically clean enclosure interior.
3. Do not overload the work surface with apparatus or work material. The
safe operation of the enclosure is based upon having proper airflow through
the structure. Do not place large objects directly on the work surface.
Instead, elevate the object 3/4" on blocks to allow a flow of air under the
object and into the rear baffle exhaust slots. Ensure blocks are level and
secured in place.
4. Blocking large portions of the rear baffle will change the airflow pattern in
the enclosure causing turbulence. (Do not store containers or supplies
against the rear baffle, as this will affect airflow).
5. Always work with your hands as far back into the enclosure as possible.
Keep all biohazardous materials, chemicals and apparatus inside the lower
air foil of the enclosure.
6. Do not work in this enclosure without the exhaust system running.
7. Perchloric acid use in this enclosure is prohibited.
8. High-level radioisotope materials are prohibited in this enclosure. Consult
your Safety Officer.
9. Avoid cross drafts and limit traffic in front of the enclosure. Air
disturbances created may draw contaminants out of the enclosure.
10. A qualified certification technician should test the enclosure before it is
initially used. The enclosure should be validated whenever it is relocated.
11. The use of safety goggles, protective clothing, gloves and any other
personal protective equipment recommended by your safety officer should
be used.