Labconco Protector Stainless Steel Perchloric Acid Laboratory Fume Hoods 1308 Series - Manuel (Page 37)

Chapter 5: Using the Protector Perchloric Acid
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Original instructions
ductwork. This is done by connecting the water line to the plugged connection on
top of the washdown hood system or ordering additional washdown valves found
in Chapter 2 and Chapter 7.
Working in Your Protector Perchloric Acid
Fume Hood
Planning

Thoroughly understand procedures and equipment required before
beginning work.

Arrange for minimal disruptions, such as room traffic or entry into the
room while the hood is in use.
Start-up

Turn on fluorescent light and hood blower.

Slowly raise the sash.

Check the baffle air slots for obstructions.

Allow the hood to operate unobstructed for 5 minutes.

Wear a long sleeved lab coat and rubber gloves. Use protective eyewear.
Wear a protective mask if appropriate.
Loading Materials and Equipment

Only load the Perchloric Acid Hood materials required for the procedure.
Do not overload the hood. Only use Perchloric acid in the Perchloric Acid
Fume Hood.

Radioisotope materials are not recommended for use in these Perchloric
Acid Hoods. Consult your Safety Officer should you have any questions.

Do not obstruct the front air foil, or rear baffle slots.

Large objects should not be placed close together and spaced above the
liner bottom to permit airflow to sweep under the equipment.

After loading the hood, wait one minute to purge airborne contaminants
from the work area.
Work Techniques

Keep all materials at least 6 inches inside of the sash, and perform all
contaminated operations as far to the rear of the work area as possible.
Segregate all clean and contaminated materials in the work area.

Avoid using techniques or procedures that disrupt the airflow patterns of
the hood.
Final Purging

Upon completion of work, the hood should be allowed to operate for two to
three minutes undisturbed, to purge airborne contaminants from the work
area before shutting down blower.
Unloading Materials and Equipment

Objects in contact with contaminated material should be surface
decontaminated before removal from the hood.

All open trays or containers should be covered before being removed from
the hood.