Labconco XPert Weigh Boxes 5220331 - Manual (Page 30)

Chapter 5: Using Your Glove Box
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The inlet concentration or the evaporation rate of the chemical must never
exceed the TWA for the chemical.
Consult a Labconco Technical Specialist for estimated saturation life. See
Chapter 6 for an example of estimating saturation life based on Labconco’s
chemical guide.
Prohibited Acid Use
The XPert Weigh Box motorized impeller and internal metal parts must not
be exposed to mineral acid use. No exceptions are permitted, as the glove
box life span will be limited with acid use.
NOTE: If mineral acids are used with the XPert Weigh Box, Labconco
makes no claims about life span and warranties will become
void.