Labconco Protector Stainless Steel Radioisotope Laboratory Fume Hoods 1208 Series - Manuel (Page 26)

Chapter 4: Performance Features & Safety Precautions
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Original instructions
However, in the case of inhalation, low-level emitters can attack inner organ
tissues posing a health hazard. Therefore, it is very important in cases even where
these low level type emitters are being used that effective sources of ventilation be
provided.
The radioisotope hood’s stainless steel liner material is intended for use with alpha
particles, which are least hazardous, and for most beta type particles, which have a
slightly higher mass and consequently feature a higher velocity requiring more
shielding than the alpha particles. The gamma emitter particles have no mass but
an extremely high velocity. Therefore, they are not easily absorbed and are not
normally used within this hood enclosure unless it has been properly lined with
lead blocks and a lead glass sash assembly. Consult with your company safety
officer for additional safety procedures dealing with your specific materials, before
operating this hood.
1. Unique sash provides maximum visibility of 37.5" high while
conserving energy by limiting sash travel to 28". Vertical-rising sash
may be raised from a closed to 28" operating height. Exhaust volume and
blower sizing are based on the 28" height. Optional sash stops are
available to limit sash height and reduce energy usage. The Perchloric
Acid Hood has a glass sash specifically used for Perchloric Acid.
2. By-pass airflow design ensures relatively stable face velocities.
3. Large usable interior work depth and interior height of 48" provides
ample working space.
4. Baffle directs airflow to the rear of the interior to provide efficient airflow.
The baffle may be removed for cleaning purposes only.
5. Exterior access cover plates are removable for easy access to plumbing
valves when access through the sides is not available.
6. Lift-Away™ front panel provides easy access to electrical wiring, sash
weights, and lighting fixtures.
7. Energy efficient fluorescent lighting is located behind a laminated safety
glass shield mounted to the top of the hood. The factory-wired lighting is
serviceable from outside the hood cavity.
8. Low-mounted, factory-wired light and blower switches are ADA
compliant.
9. Clean-Sweep™ air foil allows air to sweep the work surface for maximum
containment.
10. Streamlined corner posts provide maximum visibility and the flexibility
to add services; services are most easily added at the factory, because of the
PVC liner.
11. All hoods are factory-prepared for up to 7 service fixtures. Additional
fixtures are available only as a factory special. Liner hole drilling is
required to add another fixture in the field.