Labconco Precise HEPA-Filtered Glove Boxes 5220231 - Manual (Page 32)

Chapter 6: Maintaining Your Glove Box
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Routine Maintenance Schedule
Weekly
• Wipe down the interior surfaces of the glove box with a disinfectant
or cleaner, depending upon the application.
• Using a damp cloth, clean the exterior surfaces of the glove box,
particularly the front and top, to remove any accumulated dust.
• Operate the exhaust system, noting the airflow through the glove box
to effectively remove a source of visible smoke.
Monthly (or more often as required)
• Chart the operating static pressure at a typical speed control setting.
Change HEPA filters when the static pressure increases two-fold or
speed setting increases two-fold. Guardian
™ Jr. Airflow Monitors are
available for constant monitoring (see Chapter 7).
• While the glove box is filled with the contaminant gas, test filter
condition of accessory FilterMate carbon filters using the appropriate
gas detector tube at intervals of 20% of the total estimated time. The
exception to the 20% recommendation is formaldehyde or any
carcinogen or suspected carcinogen. These hazardous chemicals must
be checked at least every 10% of the total estimated time. Gas
detector tubes for the specific chemicals that are being used in the
glove box can be obtained from your laboratory supply dealer (refer
to FilterMate manual).
• Replace accessory FilterMate carbon filters when chemical
breakthrough is indicated by odor, time, detector tube, or for some
chemicals, analytical instrumentation.
Annually
• Replace the fluorescent lamps.
• Have the glove box re-certified by a qualified certification technician.
See Certification and Recertification in Chapter 6.
Accessory
FilterMate
Carbon
HEPA
Accessory
FilterMate
Carbon