From:
David H Silberman <davidhs**At_Symbol_Here**STANFORD.EDU>
Subject:
Re: [DCHAS-L] Ductless fumehoods or Not.
Date:
Mar 19, 2014 01:54 UTC
Reply-To:
DCHAS-L
In-Reply-To:
Think of what reactions can go wrong (i.e., worst case scenario) and their relative exothermic potential; then think if there would be any difference in the way a standard fume hood would contain the reaction and the way a ductless hood would handle the same event. Since you are using flammables and acids in the same hood, although not necessarily at the same time, think of what would happen if the two were inadvertently put together because an undergraduate may have mislabeled a beaker.
David H. Silberman
Director, Health and Safety Programs
Stanford University School of Medicine
Alway Medical Building --- Room M-222A300 Pasteur Drive --- Mail Code: 5116
Stanford, CA 94305
Web Site: http://med.stanford.edu/somsafety/
Direct 650-723-6336Office 650-723-0110Cell 650-924-0962
FAX 650-736-0179
Health and Safety... It's more than just compliance.
From: "Richard W. Denton" <rwdenton3**At_Symbol_Here**GMAIL.COM>
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Sent: Tuesday, March 18, 2014 3:59:07 PM
Subject: [DCHAS-L] Ductless fumehoods or Not.
Hi everyone:
I was asked by my department to assist in deciding whether to purchase ductless fumehoods for our undergraduate chemistry labs. We are planning to use these for flammable solvents, and reactions involving HCl and NaOH. These hoods will be used by undergraduates for research also. Any input on the safety issues involved with these equipments versus the regular hoods would be appreciated.
-Richard (CHO)
