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<p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Michael,<o:p></o:p></span></a></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">HBr, BCl3, and Cl2 are not classified by the International Building Code or the International Fire Code as flammable or pyrophoric gases, so those two codes would not require
that the gas cabinets be fire sprinkled.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">The room in which they are stored should be fire sprinkled, however. This provides structure protection and a measure of cylinder cooling if a fire occurs in that room or
area.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Unless you have a more stringent requirement from your local fire marshal or environmental safety, the typical best practice is not to put a fire sprinkler in the cabinet proper.
This avoids potential from either a broken head in the cabinet, and reduces or eliminates the possibility of a full fire flow becoming highly acidic from a water/gas mixture.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Best,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Jack<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial Black","sans-serif";color:#C60C30">Jack Paul,</span><span style="font-size:9.0pt;font-family:"Arial Black","sans-serif";color:#C60C30">
</span><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#56585A">RA, LEED AP BD+C</span><span style="font-size:9.0pt;font-family:"Arial Black","sans-serif";color:#C60C30"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:8.5pt;font-family:"Arial","sans-serif";color:#C60C30">D</span></b><span style="font-size:8.5pt;font-family:"Arial","sans-serif";color:#56585A"> 602.474.3940
</span><b><span style="font-size:8.5pt;font-family:"Arial","sans-serif";color:#C60C30">M</span></b><span style="font-size:8.5pt;font-family:"Arial","sans-serif";color:#56585A"> 602.369.2086<o:p></o:p></span></p>
<p class="MsoNormal"><a href="http://hdrinc.com/follow-us"><u><span style="font-size:8.5pt;font-family:"Arial","sans-serif";color:#595959;text-decoration:none">hdrinc.com/follow-us</span></u></a><span style="font-size:8.5pt;font-family:"Calibri","sans-serif";color:#595959"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> labnetwork-bounces@mtl.mit.edu [mailto:labnetwork-bounces@mtl.mit.edu]
<b>On Behalf Of </b>Michael Hume<br>
<b>Sent:</b> Thursday, March 31, 2016 3:45 PM<br>
<b>To:</b> labnetwork@mtl.mit.edu<br>
<b>Subject:</b> [labnetwork] Fire Suppression for Gas Cabinets (HBr/BCl3/Cl2)<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hello All, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">We are installing 2 new cabinets in our cleanroom for toxic gasses. One will house Hbr & BCl3, the other Cl2 & N2 (purge). We have very limited experience dealing with these gasses and I am wondering if anyone can offer and advice with
regards to best methods/practice for fire suppression in each of the cabinets.<o:p></o:p></p>
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Thanks in advance,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Michael Hume</span><span style="font-size:10.0pt"><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">IT & System Specialist</span><span style="font-size:10.0pt"><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">University of Alberta - nanoFAB</span><span style="font-size:10.0pt"><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">W1-060 ECERF Building</span><span style="font-size:10.0pt"><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">9107 - 116 Street</span><span style="font-size:10.0pt"><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Edmonton, Alberta</span><span style="font-size:10.0pt"><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Canada T6G 2V4
</span><span style="font-size:10.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><a href="http://www.nanofab.ualberta.ca/" target="_blank"><span style="color:#1155CC">www.nanofab.ualberta.ca</span></a> Ph: 587-879-1519</span><o:p></o:p></p>
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