From: "Demer, Frank R - (demer)" <demer**At_Symbol_Here**EMAIL.ARIZONA.EDU>
Subject: Re: [DCHAS-L] Cadaver Discussion
Date: Wed, 27 Aug 2014 22:12:00 +0000
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 4A14EEF4B27C1A458D48A52027ED87F476BF32EC**At_Symbol_Here**



I understand your challenges.  Since the anatomists must be very close to the contaminant source - increasing dilution ventilation gets you very little in the way or exposure control.   Downdraft does not work well either because the cadaver and the plastic they are wrapped in to retard desiccation, block the downdraft intakes.  Flanged, slotted, side-draft exhaust with laminar supply air from above provides the best exposure control.  I’ve tried to explain these issues in the following presentation and videos:




From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Nail, John
Sent: Wednesday, August 27, 2014 2:00 PM
Subject: Re: [DCHAS-L] Cadaver Discussion



Tables have been obtained; I don't know if they are downdraft. There seems to be a reluctance to use any engineering control$ other than the increased room airflow that is mandated by the local department of health.


One of the … issues… is the 'why can't we do this as we did it 20 years ago'.



From: <Demer>, "Frank R - (demer)" <demer**At_Symbol_Here**EMAIL.ARIZONA.EDU>
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Date: Wednesday, August 27, 2014 3:02 PM
Subject: Re: [DCHAS-L] Cadaver Discussion




Exhausting the air to the outside could prevent those outside the lab from being exposed to formaldehyde but unless you locally exhaust the cadaver tables in a particular manner (see:, those dissecting the cadavers may likely be over exposed to formaldehyde. 



-Frank Demer



From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Nail, John
Sent: Wednesday, August 27, 2014 12:03 PM
Subject: [DCHAS-L] Cadaver Discussion



Many thanks for the information regarding cadaver labs.


A bit of context: The issue appears to be the idea of converting a classroom into a cadaver lab without exhausting the air from the room directly to the outside of the building.


Part of the on campus dialogue was the claim that the cadavers would not contain formaldehyde. The person making this claim produced a SDS that shows that the embalming fluid contains '1 to 100 % methanol, 1 to 100% phenol, and greater than 1 % formaldehyde'.


John Nail

Professor of Chemistry

Oklahoma City University








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.