From: "Ferm, Barret" <fermbarreta**At_Symbol_Here**SAU.EDU>
Subject: Re: [DCHAS-L] Liquid nitrogen storage
Date: March 8, 2013 11:06:54 AM EST
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: <5564F9EDC11C09468EE5DAF02B5CB30F29529073**At_Symbol_Here**BY2PRD0410MB376.namprd04.prod.outlook.com>


IMHO, 1 room change/hour seems low even for a normal occupied room, and woefully inadequate for storing LN2. If air handlers failed, an asphyxiation hazard would result. Putting a full mesh door to the space would be helpful.

Barry
NRCC-CHO
St. Ambrose University

"Don't let people pull you into their storm. Pull them into your peace." -Kimberly Jones



On Fri, Mar 8, 2013 at 9:40 AM, Ralph B Stuart <rstuart**At_Symbol_Here**cornell.edu> wrote:
Does anyone have a rule of thumb for a ventilation rate in a room which is being used to store liquid nitrogen containers? Several credible web sources recommend a "well-ventilated area" without mentioning numbers. We have a room under consideration for this purpose with about 1 air change per hour. This seems low to me, but I thought I would sanity check it with DCHAS-L.

Thanks for any help with this.

- Ralph


Ralph Stuart CIH
Chemical Hygiene Officer
Department of Environmental Health and Safety
Cornell University

rstuart**At_Symbol_Here**cornell.edu

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 secretary@dchas.org.
The maintenance and hosting of the DCHAS-L archive is provided through the generous support of Safety Emporium.