Date: Fri, 27 Feb 2015 09:56:36 -0500
In recent days one of our nitrogen ports has begun to frost up at the top.
This is definitely a new concurrence. We have probed the stacks for
blockages and all seem clear. The nitrogen boil off reading (coming from
the other stack) appears much lower than normal as if excessive boil off is
perhaps coming from the frosting stack.
Is this a concern? Could it be weather related as we've has a series of
winter storms and cold temps (low atmospheric pressure?)?
Pic attached...
-- Ken Knott Department of Chemistry Analytical Services Virginia Tech (540)267-6502 (Cell) (540)231-0885 (Office)
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