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<p class="MsoNormal">Hi Tonya,<o:p></o:p></p>
<p class="MsoNormal"><br>
There is some flexibility in this, depending on the relative humidity that you can safely maintain, both physically and financially. Remember that stability is extremely important.
<o:p></o:p></p>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">For study skins, we aim for 50% +/- 10%. That allows for limited seasonal drift for those of us who live in extreme climates. – your 45% set point falls within that, and should be
ok. <o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">For fluid (ETOH etc) collections, the ideal should be much dryer. 30% +/- 5%.
<o:p></o:p></li></ul>
<p class="MsoNormal"><br>
Good Luck. <br>
Gretchen Anderson<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:16.0pt;font-family:"Script MT Bold"">Gretchen Anderson<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Conservator<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Carnegie Museum of Natural History<span style="color:#C00000"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">5800 Baum Blvd. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Pittsburgh, PA 15213<o:p></o:p></span></p>
<p class="MsoNormal"><a href="mailto:Andersong@CarnegieMNH.org"><span style="color:#0563C1">Andersong@CarnegieMNH.org</span></a><o:p></o:p></p>
<p class="MsoNormal">(412)665-2607<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Nhcoll-l <nhcoll-l-bounces@mailman.yale.edu> <b>
On Behalf Of </b>Haff, Tonya (NCMI, Crace)<br>
<b>Sent:</b> Wednesday, June 23, 2021 9:14 PM<br>
<b>To:</b> nhcoll-l@mailman.yale.edu<br>
<b>Subject:</b> [Nhcoll-l] Humidity in collection rooms<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-AU">Hello all,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU">I am hoping that some of you can give me feedback on the relative humidity set point that is best for collection vaults with study skins, and for ETOH vaults. Right now we are planning on a 45% relative humidity in the
study skin vaults, and 50% in the ETOH vault, but I wonder if 45% might be a bit dry for study skins? I would be grateful for any feedback!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU">Tonya<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU" style="mso-fareast-language:EN-AU">---------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU" style="mso-fareast-language:EN-AU">Dr Tonya Haff<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU" style="mso-fareast-language:EN-AU">Collection Manager<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU" style="mso-fareast-language:EN-AU">Australian National Wildlife Collection<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU" style="mso-fareast-language:EN-AU">National Research Collections Australia, CSIRO<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU" style="mso-fareast-language:EN-AU">Canberra, Australia
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU" style="mso-fareast-language:EN-AU">Phone: (+61) 02 6242 1566 (office)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU" style="mso-fareast-language:EN-AU">(+61) 0419 569 109 (mobile)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-AU"><o:p> </o:p></span></p>
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<br>
<br>
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