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Hello again,</div>
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I talked to Marc and he reminded me that <span style="background-color: rgb(255, 255, 0);">
<u><b>we cannot use nitrogen in the aerogel tents</b></u></span>.</div>
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The tents were approved for use with dry air purge only.</div>
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-Tyler<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> dsg-hallb_rich <dsg-hallb_rich-bounces@jlab.org> on behalf of Tyler Lemon <tlemon@jlab.org><br>
<b>Sent:</b> Tuesday, May 17, 2022 10:17 AM<br>
<b>To:</b> dsg-hallb_rich@jlab.org <dsg-hallb_rich@jlab.org><br>
<b>Subject:</b> [dsg-hallb_rich] Cannot use nitrogen in aerogel tents if people will work inside tents</font>
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Hi Marco M, Marco C, Sandro, and Dario,</div>
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I noticed today that there's now a nitrogen supply line running from the manifold near the window of the cleanroom back to the corner where the aerogel tents are.</div>
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I do see that that line is not connected to the manifold, but if people will be working inside the tents, nitrogen cannot be used to purge the tents as it creates an Oxygen Deficiency Hazard (ODH) situation inside the tent.</div>
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If it needs to be more dry inside the tents, we will have to come up with a safer way to proceed.</div>
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-Tyler<br>
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