From: Kim Auletta <kim.auletta**At_Symbol_Here**STONYBROOK.EDU>
Subject: Re: [DCHAS-L] Oxygen Sensor
Date: August 29, 2012 11:48:51 AM EDT
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: <003f01cd85fb$f16891a0$d439b4e0$**At_Symbol_Here**net>

we just added O2 sensors to 2 rooms with NMR equipment in the event of a quench (catastrophic failure). The alarm & sensor is in the room, but the visual strobe alarm is mounted so that the lab user can see it thru a window before entering the space. The alarm is also hooked into the building alarm system as a "trouble" - this will notify our fire marshals & others that there's a problem before someone goes in.

Kim Gates Auletta
Laboratory Safety Specialist
Environmental Health & Safety
Stony Brook University
Stony Brook, NY 11794-6200
FAX: 631-632-9683
EH&S Web site:

On Wed, Aug 29, 2012 at 11:35 AM, Laurence Doemeny <ldoemeny**At_Symbol_Here**> wrote:

I suggest that you Google "oxygen deficiency monitoring equipment". The equipment is used for confined space monitoring or where there is likelihood that the release of cryogenic gases (LN2) could lower the amount of oxygen in the room and cause the occupants to be asphyxiated.

From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of bjwiehe**At_Symbol_Here**OWU.EDU
Sent: Wednesday, August 29, 2012 7:01 AM
Subject: [DCHAS-L] Oxygen Sensor

We are installing an Oxygen Sensor in a room using Liquid Nitrogen. Question, why do you mount it in the room where loss of Oxygen would be present? What type of training should the technician have overseeing the monitor?(ie respirator fit)

Barb Wiehe

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