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<div>Jim:</div>
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<div>Good to hear from you. Even though I am no longer of the front lines, Stanford has used several of these things both for routine checks and for emergency response situations. </div>
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<div>We have, and still use, a couple of the old Matheson 8057A units that you describe:</div>
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<div><a href="http://www2.mathesongas.com/pdfs/products/Model-8057A-General-Purpose-Gas-Detector.pdf">http://www2.mathesongas.com/pdfs/products/Model-8057A-General-Purpose-Gas-Detector.pdf</a></div>
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<div>We also have a couple of the RKI Instruments multi-channel units … the RKI Eagle which is/was a 4-channel detector. Actually, the newer RKI Eagle 2 monitors up to 6 different gases when you don't know what you are sniffing for. These seems to the the detector
of choice for the Fire Departments and HazMat Teams with which I am familiar. </div>
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<div><a href="http://www.rkiinstruments.com/product/eagle-2/">http://www.rkiinstruments.com/product/eagle-2/</a></div>
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<div>We also have a handheld paper tape unit made by DODTec for hydrides that can detect all the way down to the TLV for Arsine … which, to my knowledge, the electrochemical cells can't do:</div>
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<div><a href="http://www.dodtec.com/clpx/">http://www.dodtec.com/clpx/</a></div>
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<div>I'm sure there are more companies with offerings and likely more and newer models, but this should be a starting point for you. </div>
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<div>I personally like the multi gas units … even if you think you know what you are looking for … because I want to be sniffing for as many things as possible when I don't know what I'm looking for. </div>
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<div>Have a good weekend, John</div>
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<div>Sent from my iPhone</div>
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On Mar 31, 2017, at 5:19 PM, James C. Sturm <<a href="mailto:sturm@Princeton.EDU">sturm@Princeton.EDU</a>> wrote:<br>
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<p class="MsoNormal"><span style="color:#1F497D">I am looking for handheld detectors to “sniff” at VCR or swagelock joints for leaks of hydrogen and also for common hydrides (silane, germane, diborane, phosphine…). The lab has a central system already, but
I am looking for something to sniff at joints with after making connections and repressurizing. (Yes we will Helium leak-check too, but this is as a followup with less likelihood of someone doing it wrong).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Many years (25?) we had a handheld unit for hydrides (about 7” x 3 “ x 1”, with a 4” long rubber sniffer port). Probably made by Matheson but can’t seem to find anything similar from them now (although I didn’t
look very hard).<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D">Suggestions?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D">Thanks, Jim Sturm<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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