Labconco Precise Controlled Atmosphere and Basic Glove Boxes 5220131 - Manual (Page 35)

Chapter 5: Using Your Glove Box
Product Service 1-800-522-7658 31
• Objects in contact with previously contaminated internal atmospheres
must be surface decontaminated or bagged before removal from the
glove box through the transfer chamber.
• After placing materials to be removed in the transfer chamber and
locking the internal door, the transfer chamber must be purged and
filled approximately 1-5 times depending on vacuum level achieved.
This ensures the removal of any remaining airborne contaminants
before the outer door is opened. Never apply a high vacuum purge on
sensitive electronic moisture and oxygen monitors. The exact number
of cycles should be determined by your Safety Officer.
Shutdown
• To help preserve the controlled atmosphere, leave the glove box main
chamber under slightly positive pressure and continuously run the
recirculating drying train. The use of the accessory external glove port
caps can assist in preserving the inert atmosphere (see Appendix E).
• Keep the outer door closed when not in use.
Hazardous Use with Chemicals
Hazardous chemicals may be used safely only when the glove box
vacuum pump and pressure relief valve are both properly vented and/or
filtered to the outside. Consult your Safety Officer for proper venting and
filtering of the vacuum pump exhaust and the pressure relief valve for your
application.
Prohibited Acid Use
Due to stainless steel components, the glove box interior must not be
exposed to mineral acid use. The glove box life span will be limited with use
of mineral acids.
NOTE: Labconco makes no claims about life span of the glove box with
mineral acid use and warranties will become void.