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Hi Valery,<br>
<br>
For 1; This may take a couple days.<br>
<br>
For 2; The volume of Hall B is required for this. This is a question
for the Hall B. In addition, there are multiple gas volumes in Hall
B. Currently, none of the individual gas volumes has an individual
ODH assessment for Hall B. So, another question for Hall B, is if
they want individual ODH assessments for each gas volume or if they
want to make a reference to the overall ODH assessment of Hall B in
each OSP?<br>
<br>
There are at least the following volumes and gas discharges;<br>
Cryo LN2 liquid liters<br>
Cryo LHe liquid liters<br>
DC ArCO2 gas volume<br>
HTCC CO2 gas volume<br>
LTCC C4F10 or N2 gas volume<br>
RICH N2 gas volume<br>
MVT<br>
FT<br>
Target<br>
Multiple N2 and CO2 purge flow rates, ie. SVT, DC, RICH, HTCC, PCAL,
etc.<br>
<br>
Obviously, each individual volume is much less than that of the
whole. The overall ODH assessment of Hall B requires that all
volumes be accounted for. The volume of Hall B is required to make
this assessment. Once we know the volume of Hall B, we can determine
the ODU hazard of each individual volume.<br>
<br>
For 3; The Hall B Engineer will determine what specific training is
required for operation of each system or piece of equipment in Hall
B. Only the Hall B Engineer can authorize a tech to operate
equipment in Hall B. That said, I would recommend minimum training
requirements should include the following;<br>
- Operator must demonstrate a working understanding of the purpose
and function of the equipment<br>
- Operator must demonstrate knowledge of the potential hazards
involved in operating the equipment<br>
- Operator must demonstrate the ability to understand the equipment
diagrams and operating instructions<br>
- Operator must demonstrate that they are able to safely operate the
equipment.<br>
<br>
- George<br>
<br>
<div class="moz-cite-prefix">On 11/10/2016 7:01 PM, Valery
Kubarovsky wrote:<br>
</div>
<blockquote
cite="mid:2139762580.3722765.1478822500369.JavaMail.zimbra@jlab.org"
type="cite">
<div style="font-family: arial,helvetica,sans-serif; font-size:
12pt; color: #000000">
<div>Hi Tylor, George and Marc,</div>
<div><br data-mce-bogus="1">
</div>
<div>1. I will appreciate if you will add to THA associated
personal hazards connected with the gas systems</div>
<div>(see Q. N2 in the appended document). I attached the
current THA as well.</div>
<div><br data-mce-bogus="1">
</div>
<div>2. I need your assistance with the estimation of the ODH
hazard connected with the gas systems (Q.N4).</div>
<div><br data-mce-bogus="1">
</div>
<div>3. Please indicate the specific training that required for
the operation of the gas system that you have designed (Q.N7).</div>
<div><br data-mce-bogus="1">
</div>
<div>Thank you,</div>
<div>Valery</div>
<div><br data-mce-bogus="1">
</div>
<div><br>
</div>
<div data-marker="__QUOTED_TEXT__"><br>
</div>
</div>
</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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