Date: Mon, 31 Oct 2011 10:20:03 -0400
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Sender: DCHAS-L Discussion List <dchas-l**At_Symbol_Here**>
From: Don Abramowitz <dabramow**At_Symbol_Here**BRYNMAWR.EDU>
Subject: Re: Portable Gas Detectors
In-Reply-To: <4FF77342-08D3-4CE0-A733-4F9299A7B69C**At_Symbol_Here**>

CO and H2S are fairly straightforward and are sensitive in a health-relevant range, but the sensors are subject to interference, so a "hit" on a CO sensor may be caused by another substance in the air.  I have noticed, for example, that isopropyl alcohol makes the CO sensor on my meter go crazy.

I have been in situations where there was clearly something amiss, where someone had waved a four-gasmultimeter, observed no change in the readings from ambient, and pronounced the air "safe," as if the device was a Star Trek Tricorder.  (If anyone knows where I can get one of those, please let me know.)


Donald Abramowitz, CIH
Environmental Health & Safety Officer
Bryn Mawr College
Bryn Mawr, PA

Hello Everyone,

I recently became the first CHO at my institution and joined the ACS DCHAS.  The LISTSERV has already provided me with valuable information.  Ourinstitution is small and Chemistry is a "service" area to the rest of the College (including a small Biology Program).  Last week we had a report from a staff member of a "strong and ugly odor" coming from a chemistry lab.  The staff member called Public Safety and they called me. It turns out that the lab tech had just prepared reagents containing cyclohexane.  After the incident was determined to be "minor", the Public Safety Chief told me that his office used to have a Portable Gas Detector, but that said detector was lost. Can any of you recommend such a device? Brand? Detectors?

Thanks in advance for any assistance,


Mario G. Garcia-Rios, Ph.D.
Associate Professor, Biology and Chemistry
Chemical Hygiene Officer
Mount Ida College
777 Dedham Street
Newton, MA 02459
(617) 928-4061

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.