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Hi Maxime,<br>
<br>
The CF4 is in the bldg 90 gas cage along with the remaining
cylinders of pre-mix. The CF4 cylinder contains liquid and is heavy.
The CF4 cyl is white in color.<br>
<br>
I believe at about 50F/10C pressure in the isobutane tank should be
about 18 psi. With the blanket turned on, that should increase to
about 45 psi. The below P/T curve diagram shows the relationship
between the isobutane temp and press.<br>
<img moz-do-not-send="false"
src="cid:part1.3B73051E.46353F20@jlab.org" alt="" height="291"
width="736"><br>
<br>
George<br>
<br>
<div class="moz-cite-prefix">On 12/4/2017 3:03 PM, <a class="moz-txt-link-abbreviated" href="mailto:mdefurne@jlab.org">mdefurne@jlab.org</a>
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:4f8046d8618e779e4e7ee9f098589e91.squirrel@webmail.jlab.org">
<pre wrap="">Dear George, dear Matt,
Is there a reason why isobutane is not connected to the mixing system yet?
(Are you waiting for the blanket before?)
Also,where is the CF4 cylinder or tank?
Kind regards,
Maxime
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
George Jacobs
Jefferson Lab (TJNAF)
STE 12
12000 Jefferson Ave.
Newport News, VA 23606
(office) 757-269-7115
(cell) 757-876-0480
(email) <a class="moz-txt-link-abbreviated" href="mailto:jacobsg@jlab.org">jacobsg@jlab.org</a>
(website) <a class="moz-txt-link-freetext" href="https://userweb.jlab.org/~jacobsg">https://userweb.jlab.org/~jacobsg</a></pre>
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