Date: Sun, 12 Sep 2004 13:00:14 +0300
Reply-To: "Qureshi, Rasim M." <Rasimqureshi**At_Symbol_Here**UNITED.SABIC.COM>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: "Qureshi, Rasim M." <Rasimqureshi**At_Symbol_Here**UNITED.SABIC.COM>
Subject: Re: Level of Fume Hood Use at Academic Institutions
Comments: To: Mary Dougherty

I am not in associated with University or College but our Petrochemical
Complex has a huge organic Laboratory and we use simple formula for DUCTS /
hoods and that is, we maintain 12 cycles of volume per hour in the hoods it
means that we calculate the volume of the hood and then install a induced
draft fan on the hood that gives us twelve times the volume flow rate per
hour from the hood exhaust.

I hope it helps

Rasim M Qureshi
SHE Engineer

-----Original Message-----
From: Mary Dougherty [mailto:mdough**At_Symbol_Here**STANFORD.EDU]
Sent: Thursday, September 09, 2004 9:44 PM
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: [DCHAS-L] Level of Fume Hood Use at Academic Institutions

Stanford University EH&S's Department is seeking information regarding the
level of fume hood use at other academic institutions in undergraduate
organic Chemistry teaching laboratories.   We'd appreciate your feedback on
the following:

1) Name of your University or College

2) Do you run microscale organic chemistry labs or macroscale organic
chemistry labs?

3) What is the percentage of organic chemistry experiments conducted in a
fume hood vs on the benchtop?  (e.g., We run 100% of our organic
experiments in the fume hood; or, We run microscale organic experiments
primarily on the benchtop - chemicals are dispensed in the hoods).

4) Student-to-fumehood ratio & length of hood (e.g., 2 students per 5 foot
hood ; Or, 5 students rotate using 6 foot hoods).

5) If applicable, does lack of fume hoods impact your curriculum? If so,
how?  (e.g., Reduce the labs sections offered per quarter; Or, Use of
substandard aqueous procedures, or shortened procedures allowing rotating
use of hoods.)

Previous post   |  Top of Page   |   Next post

The content of this page reflects the personal opinion(s) of the author(s) only, not the American Chemical Society, ILPI, Safety Emporium, or any other party. Use of any information on this page is at the reader's own risk. Unauthorized reproduction of these materials is prohibited. Send questions/comments about the archive to
The maintenance and hosting of the DCHAS-L archive is provided through the generous support of Safety Emporium.