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Hi John,<br>
<br>
There was a very interesting discussion of this and the related
issue of when folks run toxic gases, a few years ago on this list.
I'm happy to send you an executive summary, if you'd like (I
actually created one for our folks here, for some of our policy
meetings...)<br>
<br>
Short version:<br>
<br>
At Harvard, we run 24/7, all equipment, including wetbenches, but
toxic gases are only available ~6 am to ~8 pm. Staffing is from
~8pm - ~6pm. Buddy system is required for all acid/base wetbench
work, whenever it is done. Not strictly required for other work.<br>
<br>
Seems to work okay. Wetbenches sometimes get a bit messy at night,
and we see (on video) things are a bit more "loose" at night, in
terms of PPE, etc, but nothing too egregious.<br>
<br>
We have a full gas detection system, interlocked with gas sources,
building systems, and the fire department.<br>
<br>
Too bad you guys lost headcount. Hope things get better...<br>
<br>
<br>
Mac<br>
Harvard CNS<br>
<br>
<br>
<br>
<br>
<br>
<br>
On 11/20/2013 8:40 AM, Weaver, John R wrote:
<blockquote
cite="mid:6A848421F695C54A9210C1A873C96AC212F0435E@WPVEXCMBX04.purdue.lcl"
type="cite">
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<font size="2" face="Calibri"><span style="font-size:11pt;">
<div>Due to some headcount reductions we are re-thinking our
after-hours lab work. Previously we had trained “lab
attendants” who watched over things until midnight, then
required the “buddy system” after that. Now we are looking
at just using the buddy system
after 5:00 pm.</div>
<div> </div>
<div>How do you handle things in your facility? Are you happy
with the results?</div>
<div> </div>
<div>Thanks in advance,</div>
<div>John</div>
<div> </div>
<div><font size="2" face="Cambria"><span
style="font-size:9pt;"><b><i>John R. Weaver</i></b></span></font></div>
<div><font size="2" face="Cambria"><span
style="font-size:9pt;"><b><i>Facility Manager</i></b></span></font></div>
<div><font size="2" face="Cambria"><span
style="font-size:9pt;"><b><i>Birck Nanotechnology Center</i></b></span></font></div>
<div><font size="2" face="Cambria"><span
style="font-size:9pt;"><b><i>1205 West State Street</i></b></span></font></div>
<div><font size="2" face="Cambria"><span
style="font-size:9pt;"><b><i>West Lafayette IN 47907</i></b></span></font></div>
<div><font size="2" face="Cambria"><span
style="font-size:9pt;"><b><i>(765) 494-5494</i></b></span></font></div>
<div><a moz-do-not-send="true"
href="mailto:jrweaver@purdue.edu"><font size="2"
color="blue" face="Cambria"><span style="font-size:9pt;"><b><i><u>jrweaver@purdue.edu</u></i></b></span></font></a></div>
<div><font size="2" face="Cambria"><span
style="font-size:9pt;"><b><i>nano.purdue.edu</i></b></span></font></div>
<div> </div>
<div> </div>
<div> </div>
</span></font>
<br>
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