<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">They&#39;d be sitting on the counter (capped) and would just pop.  Sometimes the neck would break off while you were tightening the lid.<br></div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Steve Halford (<a 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></div></div></div>
<br><div class="gmail_quote">On Wed, Jan 11, 2017 at 9:57 AM, Dirk Neumann <span dir="ltr">&lt;<a href="mailto:dirk.neumann@zsm.mwn.de" target="_blank">dirk.neumann@zsm.mwn.de</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
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    <div class="m_7992785131740326728moz-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?<span class="HOEnZb"><font color="#888888"><br>
      <br>
      Dirk <br></font></span><div><div class="h5">
      <br>
      <br>
      Am 11.01.2017 um 17:56 schrieb Steve Halford:<br>
    </div></div></div><div><div class="h5">
    <blockquote type="cite">
      <div dir="ltr">
        <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&#39;t been properly annealed at the
          factory.  We dumped that one box, and the problem never
          reappeared.<br>
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        <div>
          <div class="m_7992785131740326728gmail_signature" data-smartmail="gmail_signature">
            <div dir="ltr">Steve Halford (<a 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>
            </div>
          </div>
        </div>
        <br>
        <div class="gmail_quote">On Wed, Jan 11, 2017 at 5:42 AM, Sarah
          K. Huber <span dir="ltr">&lt;<a href="mailto:skhuber@vims.edu" target="_blank">skhuber@vims.edu</a>&gt;</span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div>
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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>
                  <div style="FONT-SIZE:13px;FONT-FAMILY:Tahoma">
                    <div style="FONT-SIZE:13px;FONT-FAMILY:Tahoma">
                      <div style="FONT-SIZE:13px;FONT-FAMILY:Tahoma"><font size="3" color="#000000">
                          <div style="FONT-SIZE:13px;FONT-FAMILY:Tahoma"><br>
                          </div>
                        </font><font size="2"><span style="FONT-SIZE:10pt"><font size="2"><span style="FONT-SIZE:10pt"><font size="3" color="#000000">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 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 href="mailto:skhuber@vims.edu" target="_blank">skhuber@vims.edu</a> <font size="2"><span style="FONT-SIZE:10pt">| <a 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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    </div></div><div><div class="h5"><pre class="m_7992785131740326728moz-signature" cols="72">-- 
Dirk Neumann

Tel: 089 / 8107-111
Fax: 089 / 8107-300
email: Dirk.Neumann(a)<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__zsm.mwn.de&d=CwMFaQ&c=-dg2m7zWuuDZ0MUcV7Sdqw&r=CLFZJ3fvGSmDp7xK1dNZfh6uGV_h-8NVlo3fXNoRNzI&m=SAPf4oqV9HeZMsnNddzxOFCPV-64Eku8xG4gvPg4zYc&s=-ClxYOOQe9k9xAd_fz_p8tNJbwK9Mc09TPebeQ_7XR8&e=" target="_blank">zsm.mwn.de</a>

Postanschrift:

Staatliche Naturwissenschaftliche Sammlungen Bayerns
Zoologische Staatssammlung München
Dirk Neumann, Sektion Ichthyologie / DNA-Labor
Münchhausenstr. 21
81247 München

Besuchen Sie unsere Sammlung:
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---------

Dirk Neumann

Tel: <a href="tel:+49%2089%208107111" value="+49898107111" target="_blank">+49-89-8107-111</a>
Fax: <a href="tel:+49%2089%208107300" value="+49898107300" target="_blank">+49-89-8107-300</a>
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postal address:

Bavarian Natural History Collections
The Bavarian State Collection of Zoology
Dirk Neumann, Section Ichthyology / DNA-Lab
Muenchhausenstr. 21
81247 Munich (Germany)

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