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<div class="moz-cite-prefix">I thought of this, too, but in this
case the lid would not shot up few inches. How did this cracking
look like, Steve, did it start when closing the vials, or after?<br>
<br>
Dirk <br>
<br>
<br>
Am 11.01.2017 um 17:56 schrieb Steve Halford:<br>
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<div class="gmail_default"
style="font-family:arial,helvetica,sans-serif">We had the same
problem with a box of 1 1/2 dram vials. Our glassblowers
thought the glass hadn't been properly annealed at the
factory. We dumped that one box, and the problem never
reappeared.<br>
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<div dir="ltr">Steve Halford (<a moz-do-not-send="true" href="mailto:halford@sfu.ca" target="_blank">halford@sfu.ca</a>)<br>
Museum Technician (Retired) <br>
Department of Biological Sciences<br>
Simon Fraser University<br>
<br>
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<div class="gmail_quote">On Wed, Jan 11, 2017 at 5:42 AM, Sarah
K. Huber <span dir="ltr"><<a moz-do-not-send="true" href="mailto:skhuber@vims.edu" target="_blank">skhuber@vims.edu</a>></span>
wrote:<br>
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<p>We are having some problems with our glass vials
(2-dram, 4-dram, and 6-dram) cracking, breaking, and
in some cases exploding. In one instance the top of
the vial snapped and shot up a few inches in the air
about 5 minutes after sealing the vial (very
exciting). However, most vials that break are found
during routine (monthly) checks. In some cases, the
vials have been fine for a year, and then will
break. In other cases, they break a week or two
after fillign. Breakage occurs several ways: a clean
break along the neck, a clean break along the
bottom, or spider cracks along the whole vial. Has
anyone else had this problem or know of a solution
(e.g., do we need higher quality glass vials, are we
screwing down the lids too tight, etc.)?</p>
<p> </p>
<p>We use Kimble™ Screw-Thread N-51A Borosilicate
Glass Sample Vials with Closed-Top Black Phenolic
Caps with Rubber Liners. Vials are filled with
ethanol (either 70% or 95%) and larval fishes. Vials
are stored in cardboard vial trays with dividers
between vials, and vial trays are stored in wooden
drawers in sealed metal cabinets. The room has
minimal fluctuations in humidity, but can fluctuate
in temperature by about 5 degrees. Once the vials
are stored they are relatively undisturbed, so there
is little to no bumping or moving of the vials.</p>
<p> </p>
<p>Any thoughts or recommendations of other vial
manufacturers would be appreciated.</p>
<p> </p>
<p>Thanks,</p>
<p>Sarah</p>
<p> </p>
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</font><font size="2"><span
style="FONT-SIZE:10pt"><font size="2"><span
style="FONT-SIZE:10pt"><font
color="#000000" size="3">Sarah K.
Huber, Ph.D.</font><br>
</span></font></span></font><font size="2"><span
style="FONT-SIZE:10pt"><font size="2"><span
style="FONT-SIZE:10pt"><font size="2"><span
style="FONT-SIZE:10pt">Curatorial
Associate, VIMS Nunnally Ichthyology
Collection<br>
</span></font></span></font></span></font><font
size="2"><span style="FONT-SIZE:10pt">Office <a moz-do-not-send="true" href="tel:%28804%29%20684-7104" value="+18046847104" target="_blank">804.684.7104</a>
<span style="FONT-SIZE:10pt">| Collection
804.684.</span>7285<br>
<a moz-do-not-send="true" href="mailto:skhuber@vims.edu" target="_blank">skhuber@vims.edu</a> <font
size="2"><span style="FONT-SIZE:10pt">| <a moz-do-not-send="true" href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.vims.edu&d=CwMFaQ&c=-dg2m7zWuuDZ0MUcV7Sdqw&r=CLFZJ3fvGSmDp7xK1dNZfh6uGV_h-8NVlo3fXNoRNzI&m=nTwnvnbwB0vQ-eB9hCKhOkQ3V146x9pJ1RsvsSdyp88&s=hZpkBnidPiTGqshX60u1qEhWAGkYN1kZAUSq6G8Ms_w&e=" target="_blank">www.vims.edu</a></span></font></span></font><br>
<font size="2"><span style="FONT-SIZE:10pt">PO
Box 1346 | 1375 Greate Rd., Gloucester Pt.,
VA 23062</span></font></div>
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<pre class="moz-signature" cols="72">--
Dirk Neumann
Tel: 089 / 8107-111
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email: Dirk.Neumann(a)zsm.mwn.de
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