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Entry  Tue May 16 16:16:16 2017, Steve, Update, safety, safety training surfs2017.jpg
    Reply  Wed Jul 5 10:23:18 2017, Steve, Update, safety, liquid nitrogen boil off liqued_nitrogen_boil_off.jpg
Message ID: 13095     Entry time: Wed Jul 5 10:23:18 2017     In reply to: 12994
Author: Steve 
Type: Update 
Category: safety 
Subject: liquid nitrogen boil off 

The liquid nitrogen container has a pressure releif valve set to 35 PSI  This valve will open periodically when contains LN2

The exiting  very cold gas can cause burning so it should not hit directly your eyes or skin.  Set the pointing of this valve into the corner.

Leave entry door open so nitrogen concentration can not build up.

Oxygen deficiency
Nitrogen can displace oxygen in the air, reducing the
percentage of oxygen to below safe levels. Because the brain
needs a continuous supply of oxygen to remain active, lack
of oxygen prevents the brain from functioning properly, and
it shuts down.
Being odorless, colorless, tasteless, and nonirritating,
nitrogen has no properties that can warn people of its pres-
ence. Inhalation of excessive amounts of nitrogen can cause
dizziness, nausea, vomiting, loss of consciousness, and death
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