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From: bill.galdenzi**At_Symbol_Here**boehringer-ingelheim.com
Subject: Re: [DCHAS-L] Vacuum Pump Explosion at UPenn
Date: Sep 10, 2020 10:52 UTC
Reply-To:
ACS Division of Chemical Health and Safety
In-Reply-To: Re: [DCHAS-L] Vacuum Pump Explosion at UPenn
It’s not uncommon for these pumps to inadvertently “suck” solvent (liquid) which may explain a higher concentration of ether even with the port venting into the
fume hood.
From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
On Behalf Of Brown, Kimberly Jean
Sent: Thursday, September 10, 2020 6:17 AM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Subject: Re: [DCHAS-L] Vacuum Pump Explosion at UPenn
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Eugene:
Apparently, yes. The cabinet has a port to allow the exhaust to be routed into the fume hood plenum, but there is no evidence that this was being used. Our analysis is that the
pump was exhausting directly into the cabinet. When asked, the researcher was not certain whether there was an exhaust tube connected, but there was no evidence of one after the event. The fire department had removed the pump from the cabinet before we arrived
on the scene.
Kimi Brown, ARM, NRCC-CHO, CSP