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<div class="moz-cite-prefix">We had a massive electric arc (2m!)
sparking off a bad neon-light socket in the fish collection ... it
was very bright for a moment, and bitch dark immediately
thereafter, because the fuse went off. No fire. <br>
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<div class="moz-cite-prefix">And this was not a small electrostatic
spark, but more of the category <i>AMAZING</i>.<br>
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<div class="moz-cite-prefix">Before the renovation of our climate
control system I was asked for advice during the planning (fire
rating of the storage rooms). To create a combustible, saturated
ethanol atmosphere, it would have been required to knock more than
300 jars off the shelves. And even then, because of the
2-time-fold air exchange rate per hour, it would have been even
more unlikely that a spark could ignite this.</div>
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<div class="moz-cite-prefix">Am 25.06.2021 um 16:58 schrieb
Callomon,Paul:<br>
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<p class="MsoNormal"><span style="color:#1F497D">I’d be
interested to know if there are any published studies of the
spark ignition of ethanol vapors – perhaps others would too,
so if you know of any - chime in! My experience with other
volatiles, such as gasoline, is that spark ignition is
unlikely once even a moderate amount of dissipation in air
has occurred, but also that such vapors can create “trails”
in still, dense air (linking, for example, the pouring point
with the spot at which the container was put down and
capped).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><b><span
style="font-size:10.0pt;color:black">Paul Callomon MSc</span></b><span
style="font-size:10.0pt;color:black"><br>
<i>Collection Manager, Malacology and General Invertebrates</i></span><span
style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><span
style="font-size:10.0pt;color:black">Academy of Natural
Sciences of Drexel University, Philadelphia</span></b><b><span
style="font-size:10.0pt;color:black"><o:p></o:p></span></b></p>
<p class="MsoNormal" style="background:white"><span
style="font-size:10.0pt;color:black">1900 Benjamin Franklin
Parkway, Philadelphia PA 19103-1195, USA<br>
<i><a href="mailto:callomon@ansp.org" target="_blank"
moz-do-not-send="true">callomon@ansp.org</a> Tel
215-405-5096 - Fax 215-299-1170</i></span><span
style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<div class="moz-signature">-- <br>
<p><img src="cid:part2.3A891806.6F6FC735@snsb.de" alt=""
width="152" height="59"></p>
<p><br>
Dirk Neumann<br>
<br>
Tel: 089 / 8107-111<br>
Fax: 089 / 8107-300<br>
neumann(a)snsb.de<br>
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neumann(a)snsb.de<br>
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