From: Melissa Charlton-Smith <charltonsmith**At_Symbol_Here**WVWC.EDU>
Subject: Re: [DCHAS-L] Hood inspections
Date: Tue, 14 Oct 2014 13:23:08 -0400
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 7683f181b9ffdd4a566c7166351ebf43**At_Symbol_Here**mail.gmail.com
In-Reply-To <-3712830456434435434**At_Symbol_Here**unknownmsgid>


See my responses below

Mel Charlton-Smith

Chemistry Lab Coordinator, CHO-NRCC

Coordinator of BS-CHS program, Lecturer

WVWC - Chemistry Dept.

CHS-319

59 College Ave

Buckhannon, WV 26201

charltonsmith**At_Symbol_Here**wvwc.edu

304-473-8355

From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Lisa Phillips
Sent: Monday, October 13, 2014 4:55 PM
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Subject: [DCHAS-L] Hood inspections

I have been asked to post the following questions for the group to respond. Please send the response to me privately and I will compile the answers and post.

1) Are fume hoods being tested at your institution using face velocity or another method?

Yes Face velocity and smoke removal



2) Have you set a limit on the sash height (12 or 18 inches) or other height? Yes at12 and 18

2a) If so, are you conducting the face velocity at that height? Yes and yes
2b) Are you testing the hood at full open as well? Yes face velocity only not smoke

3) If you are using face velocity, has an "acceptable range" been established? If so:
3a) What is that range?

With the sash at 18" 80ft/min minimum

With the sash at 12" 100ft/min minimum

After 120 ft/min we start looking at turbulence


3b) What is the procedure if the face velocity is outside of that range?

at 150 ft/min there is too much turbulence and the hood is taken offline until it can be repaired, except for any vapor/gas exposure protection and is only used for longer running experiments such as distillations/refluxes that need space and possible impact shielding but are not considered an exposure hazard.

if the face velocity is below 80 the hood goes offline until repaired, except for any vapor/gas exposure protection and is only used for longer running experiments such as distillations/refluxes that need space and possible impact shielding but are not considered an exposure hazard.




Thanks in advance for your assistance,

Lisa


Lisa Bognar Phillips, CHMM, CCHO

Laboratory Compliance Program Manager

University Biosafety Officer

University of Notre Dame

636 Grace Hall

Notre Dame, Indiana 46556

Phone: 574-631-5037

Email: bognar.6**At_Symbol_Here**nd.edu


Sent from my iPhone

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