Kewaunee Supreme Air Series, Руководство по эксплуатации и техническому обслуживанию

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VFHOMT-11/18
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Recommended Fume Hood Work Practices
A Safe, Healthy Work Environment
Most people think of a scientific
laboratory as a clean, safe place
to work. But for the people who
work there every day, the typical
laboratory—filled with flammable
and toxic chemicals, harmful vapors,
gases and corrosive acids—can be
an extremely hazardous place.
By containing harmful contaminants
and venting them out of the work
area, laboratory fume hoods help
create and maintain a safe, healthy
environment for you—the laboratory
worker—and your co-workers.
Your fume hood is designed to protect
you by providing an enclosed work
area that has an air barrier between
you and the harmful materials you
work with. Behind this protective
air barrier, the hood’s directional air
flow carries harmful contaminants
away from you toward the rear of the
hood. Also, the properly tuned hood
and its exhaust system dilutes the
contaminants with large volumes of air
and safely exhausts them.
If anything interferes with the protective
air barrier of the fume hood or disrupts
the proper air flow, the hood’s ability
to protect you and your co-workers
may be seriously reduced.
Since 1906, we at Kewaunee
Scientific Corporation have been
designing and building laboratory
fume hoods to help keep laboratory
work environments safe and healthy.
Based on our knowledge and
experience, we’ve outlined a number
of basic safety practices for you
and your co-workers to follow when
choosing, using and maintaining
laboratory fume hoods. The following
practices are based on the superior
design found in Kewaunee Supreme
Air Venturi hoods.
We urge you to familiarize yourself
with these recommended fume hood
work practices and with your facility’s
safety guidelines and standard
operating procedures. We think you’ll
agree—it’s the best way to help
ensure a safe, healthy work area for
you and your co-workers.
The Right Fume Hood for the Job
If your laboratory fume hood is to
properly protect you, it must be
designed for the type of work you’re
doing.
For example, if you work with
radioisotopes, carcinogens or
other toxic materials for which
decontamination is important, you
should always use a hood with a non-
absorbent lining that is designed to
be easily decontaminated.
If you work with large volumes of
flammable substances, you may need
a hood equipped with such features
as a non-absorbent lining, explosion-
proof lights and electrical receptacles,
a fire-suppression system, and a
spark-resistant exhaust fan.
If you use perchloric acid heated
above ambient temperature then
you need a fume hood and exhaust
system specifically designed for this
hazard.
To be sure your fume hood is the
right one for the work you’re doing,
contact your local Kewaunee sales
representative.
Venturi Fixed Baffle Configuration
Kewaunee Supreme Air Venturi fume
hoods are provided with a fixed baffle
configuration.
(See Figures 1 and 2.)
The slots in the baffle are optimized to
provide the best performance.
Figure 2.
End Section View
Figure 1.
Face Section View
Lower Baffle Slot
Upper Baffle Slot
Dynamic Bypass
Vertical Baffle Slots
Venturi Ports
Baffles Sash