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    Hi Kevin,<br>
    <br>
    I've used cleaned-for-oxygen copper for CDA in two cleanrooms. Here
    at UD I had a membrane dryer installed to lower the building
    supplied CDA's dewpoint  to -100F.<br>
    <br>
    Cheers,<br>
    <br>
    Iulian<br>
    <pre class="moz-signature" cols="72">iulian Codreanu, Ph.D.
Director, Nanofabrication Facility
University of Delaware
Harker ISE Lab, Room 163
221 Academy Street
Newark, DE 19716
302-831-2784
<a class="moz-txt-link-freetext" href="http://udnf.udel.edu">http://udnf.udel.edu</a></pre>
    <div class="moz-cite-prefix">On 12/7/2022 8:32 PM, Matthew Moneck
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:4f6a73c96d692d497e320e5207ca83ce@mail.gmail.com">
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        <p class="MsoNormal"><span style="color:#1f497d">Hi Kevin,</span></p>
        <p class="MsoNormal"><span style="color:#1f497d"> </span></p>
        <p class="MsoNormal"><span style="color:#1f497d">All of the
            mains and laterals for our -100F dewpoint compressed air are
            copper.  We have not experienced any issues.  If you have
            any concerns about particulate, you can install point of use
            filters, but have not needed to do so. </span></p>
        <p class="MsoNormal"><span style="color:#1f497d"> </span></p>
        <p class="MsoNormal"><span style="color:#1f497d">Best Regards,</span></p>
        <p class="MsoNormal"><span style="color:#1f497d"><br>
            Matt</span></p>
        <p class="MsoNormal"><span style="color:#1f497d"> </span></p>
        <div>
          <p class="MsoNormal"><span style="color:#1f497d">--</span></p>
          <p class="MsoNormal"><b><span style="color:#1f497d">Matthew T.
                Moneck, Ph.D</span></b></p>
          <p class="MsoNormal"><span style="color:#1f497d">Executive
              Director, Claire & John Bertucci Nanotechnology
              Laboratory</span></p>
          <p class="MsoNormal"><span style="color:#1f497d">Electrical
              & Computer Engineering | Carnegie Mellon University</span></p>
          <p class="MsoNormal"><span style="color:#1f497d">5000 Forbes
              Avenue, Pittsburgh, PA 15213-3890</span></p>
          <p class="MsoNormal"><span style="color:#1f497d">Phone: 
              412-268-5430</span></p>
          <p class="MsoNormal"><span style="color:#1f497d"><a
                href="http://www.ece.cmu.edu/" moz-do-not-send="true"><span
                  style="color:#0563c1">ece.cmu.edu</span></a> </span></p>
          <p class="MsoNormal"><span style="color:#1f497d"><a
                href="http://www.nanofab.ece.cmu.edu/"
                moz-do-not-send="true"><span style="color:#0563c1">nanofab.ece.cmu.edu</span></a>
            </span></p>
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            <p class="MsoNormal"><b>From:</b> labnetwork <<a
                href="mailto:labnetwork-bounces@mtl.mit.edu"
                moz-do-not-send="true" class="moz-txt-link-freetext">labnetwork-bounces@mtl.mit.edu</a>>
              <b>On Behalf Of </b>Denis, Kevin L. (GSFC-5530)<br>
              <b>Sent:</b> Wednesday, December 7, 2022 4:46 PM<br>
              <b>To:</b> <a href="mailto:labnetwork@mtl.mit.edu"
                moz-do-not-send="true" class="moz-txt-link-freetext">labnetwork@mtl.mit.edu</a><br>
              <b>Subject:</b> [labnetwork] CDA and copper piping</p>
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        <p class="MsoNormal"> </p>
        <p class="MsoNormal">Hello All,</p>
        <p class="MsoNormal">Has anyone used copper piping for clean dry
          air lines.  If not what kind of problems would one run into if
          going this route?  Thanks for any insight that can be
          provided.</p>
        <p class="MsoNormal"> </p>
        <p class="MsoNormal"> </p>
        <p class="MsoNormal">Regards,<br>
          Kevin</p>
        <p class="MsoNormal"> </p>
        <p class="MsoNormal"> </p>
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      <br>
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
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</pre>
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