Dewar - Micromeritics FlowSorb III 2305 Operator's Manual

Intended Use and Precautions

Dewar

Always handle dewars with care. Any product incorporating a vacuum is a
potential safety hazard and should be treated with caution. Always observe
the precautions listed below.
We recommend the following be observed when handling dewars containing lique-
fied gases:
• Protect yourself by wearing 1) goggles (or a face shield), 2) an insulated
or rubber apron, and 3) insulated gloves.
• When pouring liquefied gases from one container to another: 1) cool the
receiving container gradually to minimize thermal shock, 2) pour the lique-
fied gas slowly to prevent splashing, and 3) vent the receiving container to
the atmosphere.
• Use a plastic stirring rod when stirring substances in a dewar containing
liquefied gases (or other materials of extremely low temperature). Do not
use a glass or metal stirring rod unless it is coated with some type of pro-
tective coating.
• Do not remove the mesh covering from the Dewar flask. This covering is
in place to minimize the risk of flying particles if the Dewar is acciden-
tally knocked over or dropped and broken.
•
tective cover over the dewar's opening. If an object of sufficient weight is
accidentally dropped into the dewar, shattering may occur.
1-4
Do not handle heavy objects above the dewar. If unavoidable, place a pro-
FlowSorb III
Mar 2012