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Previous by Date: Subject: Re: Horizontal hood sash signage? < div style='font-family: Arial; font-size: 12pt; color: #000000'> We use these hood systems with the sashes that go both direction s. We typically keep the vertical plumb to the surface (minus power cords, but cork rings work here) and the horizontal sahes are what is used to  ;gain access.   We have our hoods rated at 100fpm, with all sashes down and horizontals at ~50% accessability. With all sashes closed fpm jump to ~150-160fpm, and We typically see "tornados" when performing smoke tests.   Signage will consist of the type of work being performe d, as well as the understanding that when not in use, have all sashes in th e closed position. When I was performing cGMP Cytotoxics, We would hav e EHS perform surrogate testing that related to the solvents, reagents, etc , that were to be used in the specific hood (prior to usage). Once approved , We would post suitable signage to reflect this.   Hope this helps.   Cheers! --------------------------------------------- Date: Fri, 27 May 2011 16:01:07 +0000 Author: "George D. McCallion"

Next by Date: Subject: Chemical Safety Headlines From Google (18 articles) Date: Tue, 31 May 2011 07:45:30 -0400 Author: "Secretary, ACS Division of Chemical Health and Safety"

You want pithy?  You can try Haiku:

Hoods for prevention
noxious vapors spewing forth
closed sash protection

Or perhaps Limerick:

There is a hood in your space
Blocking noxious stuff from your face
Keep the sash closed
Prevent chems in the nose
And PIs won't get on your case

And that is why I'm a chemist and not an writer for Hallmark.

H

-----Original Message-----
>From: Ralph B Stuart 
>Sent: May 27, 2011 10:30 AM
>To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
>Subject: [DCHAS-L] Horizontal hood sash signage?
>
>Has anyone developed signage and/or for fume hoods with horizontally moving sashes that help users understand how they are to be used? We have a collection of new hoods at Cornell that have sashes that move both horizontally and vertically and we'd like to come up with a pithy way of explaining to users how to use them effectively.
>
>Thanks for any help with this.
>
>- Ralph
>
>
>Ralph Stuart CIH
>Laboratory Ventilation Specialist
>rstuart**At_Symbol_Here**cornell.edu

Harry J. Elston, Ph.D., CIH
Editor, Journal of Chemical Health & Safety

"You can have peace. Or you can have freedom.
Don't ever count on having both at once"
   -Robert Heinlein

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