From: Mary Ellen A Scott <mas35**At_Symbol_Here**CASE.EDU>
Subject: Re: [DCHAS-L] Fume hoods
Date: May 16, 2013 2:34:48 PM EDT
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: <CAOYSQ4-Ji72YMmkP27sjJaRomVwPXkggGofwbdvX+uecwiSk-A**At_Symbol_Here**>

Ditto to what Ralph said
And - the best sash position is as low as possible when working at the face - the sticker has mislead a lot of students in my experience

On Thu, May 16, 2013 at 1:36 PM, Ken Kretchman <kwkretch**At_Symbol_Here**> wrote:
Just what Ralph said.. I agree..

Ken Kretchman, CIH, CSP Director, Environmental Health and Safety
Campus Box 8007 / 2620 Wolf Village Way / Raleigh North Carolina 27695-8007

On Thu, May 16, 2013 at 12:50 PM, Ralph B. Stuart <rstuart**At_Symbol_Here**> wrote:

> Do the combination sash with lockable panels help with the misuse by student ?

I have observed combination sashes in use in a variety of labs on a variety of campuses and would say no. They are almost always operated with the process occurring behind the open part of the horizontal sash, so that there is no sash between the process and operator. The additional complicating factor is that many alarm systems track the open face area, resulting in alarms that seem to occur randomly as the sashes are adjusted, resulting in people being reluctant to move the sashes horizontally.

- Ralph

Ralph Stuart CIH

Chemical Hygiene Officer

Department of Environmental Health and Safety

Cornell University


Mary Ellen Scott, PhD.
Safety Specialist II
Case Western Reserve University
EHS - Environmental Health and Safety
Service Building 1st Floor Rm 113
2220 Circle Dr.
Cleveland, OH 44106-7227
216-368-2236 (Fax)
"There is no science without fancy and no art without fact" =96 Vladimir Nabokov (1899-1977)

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