VFHOMT-11/18
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Operating Procedures
General Procedures for Supreme Air Venturi Fume Hoods
Failure to follow these
Procedures may result in
overexposure to
contaminates or other
injury.
Other important
operating data
1. Do not use Perchloric Acid in a hood not specifically designed for use with
Perchloric Acid.
2. Prior to using hood, verify that the exhaust fan is operating and sufficient air
is being exhausted from hood.
3. Never put head into hood while contaminates are being generated.
4. Set up all apparatus and sources of contaminates at least 6” back from sash
opening and in recessed portion of worksurface.
5. Do not place electrical receptacles or other sources of ignition in hood when
flammables are present.
6. Use a safety shield if there is a possibility of a small explosion or runaway
reaction. This hood is not designed for explosion protection.
7. Do not obstruct slots in rear baffle.
8. Do not remove bottom deflector vane nor block off opening between the
underside of the deflector vane and the work top.
9. Place equipment with large flat surfaces parallel to hood face on legs 2” to 3”
high.
10. While working at hood, keep sash lowered to the minimum opening required
for access to working area. During other times, keep sash closed.
11. Wear gloves and other protective clothing if skin contact with airborne
contaminates is a hazard.
For more information see
Recommended Work Practices
on page 22
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Remove all materials from hood which are not needed for the immediate
work.
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Do not store chemicals in hood.
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Avoid making rapid movements while working at hood.
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Minimize personnel traffic past hood.
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Avoid creating air currents in the laboratory which affect the air flow patterns
into hood.
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Use good housekeeping in hood at all times. Clean up spills immediately.
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Test the performance of hood at least once every six months.
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In models with removable sash, always replace sash before operating.
Summary of Contents for Supreme Air Series
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