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<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#323E4F">Hi Richard,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#323E4F"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#323E4F">I got this a while back from I believe Air Liquide, but I’m not 100% positive of the source. Hopefully it helps.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#323E4F"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#323E4F">Happy Holidays,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#323E4F"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#323E4F">Tom
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#323E4F"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#323E4F">Tom Britton<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#323E4F">Director of Sales<o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;color:#323E4F">Critical Systems, Inc.<o:p></o:p></span></i></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#323E4F">Direct: 208.890.1417<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#323E4F">Office: 877.572.5515<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#323E4F">Skype: tombrittoncsi<o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:12.0pt;font-family:"Arial Narrow",sans-serif;color:#323E4F"><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.criticalsystemsinc.com_&d=DwMFAg&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=D1j3aH4gf_B24MHGaru0vse-Gx_NllaIE8kLU3iLsM0&m=Zc1q2ymDPllIVSzjmSZUdSs5CpFTu1sKiLVG7DOoSNE&s=tJB4xuByIZ7Ff61fhBJGZ4iH3G9CczR1NFyf0xP_86A&e=">www.CriticalSystemsInc.com</a><o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:4.0pt;font-family:"Arial Narrow",sans-serif;color:#323E4F"><o:p> </o:p></span></i></p>
<p class="MsoNormal"><span style="color:#1F497D"><img border="0" width="196" height="38" style="width:2.0416in;height:.4in" id="Picture_x0020_1" src="cid:image001.png@01D904A2.02208900" alt="logo for email signature png"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:4.0pt;font-family:"Century Gothic",sans-serif;color:#002060"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><i><span style="font-family:"Century Gothic",sans-serif;color:#002060">Note: 7 days per week Technical Support
<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><i><span style="font-family:"Century Gothic",sans-serif;color:#002060">Phone: 1-888-218-6308<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-family:"Century Gothic",sans-serif;color:#002060">Email:
<a href="mailto:Fieldservices@criticalsystemsinc.com">Fieldservices@criticalsystemsinc.com</a></span></i><span style="color:#323E4F"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#323E4F"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> labnetwork <labnetwork-bounces@mtl.mit.edu> <b>
On Behalf Of </b>Morrison, Richard H., Jr<br>
<b>Sent:</b> Wednesday, November 30, 2022 7:53 AM<br>
<b>To:</b> labnetwork@mtl.mit.edu<br>
<b>Subject:</b> [labnetwork] BCL3 question<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">HI everyone,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Does anybody have an estimate on how long BCl3 last in a cylinder. I have a cylinder of BCL3 install in 2013 and recently the etch rate has dropped, does BCl3 go bad? The gas cabinet scale is not in alarm.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Rick<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Richard Morrison<o:p></o:p></p>
<p class="MsoNormal">PMTS<o:p></o:p></p>
<p class="MsoNormal">Draper Laboratory<o:p></o:p></p>
<p class="MsoNormal">555 Technology Square<o:p></o:p></p>
<p class="MsoNormal">Cambridge Ma 02139<o:p></o:p></p>
<p class="MsoNormal">Office: 617-258-3420<o:p></o:p></p>
<p class="MsoNormal">Cell: 508-930-3461<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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