From: Dr Bob <drbob**At_Symbol_Here**FLOWSCIENCES.COM>
Subject: Re: [DCHAS-L] Power shutdown
Date: Fri, 15 Dec 2017 13:54:31 +0000
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: 7B39633B01F4EE42A269E983C42F5A481B4AA726**At_Symbol_Here**SULFATE.fsidomain.local
In-Reply-To <1513307959002.21565**At_Symbol_Here**SHSU.EDU>



It always is problematic to totally shut down hoods. 


Obvious issues. 


Sashes should be closed and minimal flow maintained. The design of your make-up air and exhaust systems makes it difficult to make additional suggestions.


Dr. Bob Haugen

Director of Product and Technology Development

Flow Sciences, Inc.


910 332 4878


From: ACS Division of Chemical Health and Safety [mailto:DCHAS-L**At_Symbol_Here**PRINCETON.EDU] On Behalf Of Battles, Paul
Sent: Thursday, December 14, 2017 10:19 PM
Subject: [DCHAS-L] Power shutdown


Hello All,


So we have a scheduled 24 hour power outage (6am-6am) for most of campus, including our Chemistry & Forensics building at the end of December. They were planning on using a generator to keep the fridges and deep freezers running for the building. However, today the Chemistry chair told the project managers that wasn't sufficient, they had to also keep all of the fume hoods going as well. This would require a much larger and more expensive generator. Administration contacted me today to go over to chemistry and see if we could figure out a plan. My question is, will it be okay to leave the fume hoods down for 24 hours? Or is it required to keep the hoods running? Everything should be capped/closed and there won't be anyone allowed in the building. ?




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