Ergonomic issues aside, the best thing to do in this situation is to tes t the hood as it's being used for containment. If it can be demonstra ted that it's containing chemical vapors then you're well on your way to sa ying it's satisfactorily working.
I prefer smoke because you can get more information on hood flow pattern s and you can use it to teach operators about proper hood use, but a few dr ops of glacial acetic acid or concentratd ammonium hydroxide in a watc hglass can be used to check for containment as well. You ca n tell right away if there are fugative emissions from the hood.
NB - HAc and Ammonia are not ANSI approved tests, your mileage may vary, see your local dealer for complete information etc.
From: "R Alton Simpson (asimp son)"
Sent: Aug 6, 2009 8:41 AM
To: DCHAS-L**At_Symbol_Here**L IST.UVM.EDU
Subject: [DCHAS-L] ADA Compliant Fume Hoods
Have any of you had experience with ADA compliant fume hoods being used by non-wheelchair bound personnel? I have concerns that the shorter height (floor to work surface) of an ADA compliant hood wi ll be a problem when used by people who would stand in front of the hood to work. Is there merit to my concern?
Thanks for any input that you can provide. Pleas e feel free to reply directly to asimpson**At_Symbol_Here**memphis.edu.
Alton Simpson, CHMM, NRCC-CHO
Director, Environmental Health and Safety
The University of Memphis
216 Browning Hall
Memphis, TN 38152-3340
(901) 678-4672 fax (901) 678-4673 SPAN>
Harry J. Elston, Ph.D., CIH Principal Midwest Chemical Safety, LLC www.midwestchemsafety.com Editor, Journal of Chemical Health & Safety http://membership.acs.org/c/chas/ Nationalized health care: All the efficiency of FEMA with all the compassion of the IRS
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