<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:#1F497D;}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal"><a name="_MailEndCompose"><span style="color:#1F497D">Hi Jim,
</span></a><span style="color:#1F497D"><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">The unit you were using was the Matheson 5057. This was actually made by New Cosmos for Matheson. The New Cosmos model was XP-703D. DOD Technologies is partnered with New Cosmos.<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"><img width="638" height="374" id="Picture_x0020_1" src="cid:image003.png@01D2AC75.23990E30" alt="cid:image003.png@01D2AC75.23990E30"></span><span style="color:#1F497D"><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"><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">The XP-703D was replaced by a newer version called the XP-703D-III. The XP-703D-III like the XP-703D is a general leak detector and basically detects the flammable part for these gases. It is strictly a qualitative
and not quantitative unit. It can read arsine down to 50ppb and H2 as low as 1ppm.
<o:p></o:p></span></p>
<p class="MsoNormal"><a href="http://www.dodtec.com/xp-703dhydrides/">http://www.dodtec.com/xp-703dhydrides/</a><span style="color:#1F497D"><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"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Another portable option is the XPS-7 which uses interchangeable EC sensors can read arsine down to 12ppb. The XPS-7 provides quantitative data where the XP-703D-III does not.<o:p></o:p></span></p>
<p class="MsoNormal"><a href="http://www.dodtec.com/xps7/">http://www.dodtec.com/xps7/</a><span style="color:#1F497D"><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">A 3<sup>rd</sup> portable option is the CLPX which uses colorimetric technology (tape) and can detect arsine down to 1.6ppb.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">http://www.dodtec.com/clpx/<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">Regards,<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"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="color:#1F497D">Frank Gambino<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">DOD Technologies, Inc.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">815-788-5200 office<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">815-788-5300 fax<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">847-722-8274 mobile<o:p></o:p></span></p>
<p class="MsoNormal"><a href="mailto:frank.gambino@dodtec.com"><span style="color:#0563C1">frank.gambino@dodtec.com</span></a><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><a href="http://www.dodtec.com"><span style="color:#0563C1">www.dodtec.com</span></a><span style="color:#1F497D"><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"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> labnetwork-bounces@mtl.mit.edu [mailto:labnetwork-bounces@mtl.mit.edu]
<b>On Behalf Of </b>James C. Sturm<br>
<b>Sent:</b> Friday, March 31, 2017 3:00 PM<br>
<b>To:</b> labnetwork@mtl.mit.edu<br>
<b>Subject:</b> [labnetwork] Handheld Hydrogen and Hydride (Phosphine, Germane, diborane, silane) detectors<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<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>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Suggestions?<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">Thanks, Jim Sturm<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
</div>
</body>
</html>