From: Richard Palluzi <000006c59248530b-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Subject: Re: [DCHAS-L] Compressed gases and sparking electronics
Date: Tue, 25 Jun 2019 13:16:07 -0400
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: 00ab01d52b79$ad6df780$0849e680$**At_Symbol_Here**



6.4.5 Limitation on Contents. The function of compressed

gas rooms shall be limited to storage and use of compressed

gases and associated equipment and supplies.


It does not require the room to be electrically classified. It does require a 1 hour fire rated separation from all other parts of the building (6.4.4) SO I’d argue the AV Equipment has nothing to do with the compressed gas cylinders.


The 2018 International Fire Code says with regard to compressed gases:


5303.7.7 Sources of ignition. Open flames and high-temperature

devices shall not be used in a manner that creates

a hazardous condition.


I think arguing the AV rack creates a hazard would be problematical.


While I think it is an awful place to put this stuff I really suspect it is not terribly dangerous if the area is ventilated per the code requirements.


Richard Palluzi



Pilot plant and laboratory consulting, safety, design,reviews, and training


Richard P Palluzi LLC

72 Summit Drive

Basking Ridge, NJ 07920




From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU> On Behalf Of Nora Dunkel
Sent: Tuesday, June 25, 2019 12:08 PM
Subject: [DCHAS-L] Compressed gases and sparking electronics


Hello all,


Curious to get this group’s input… I recently discovered a large A/V rack in the gas cylinder room of my university’s science building.  The A/V rack is hardwired into the wall, and is NOT spark-proof/hospital grade.  It could make sparks at any time.  In the same room, we have full cylinders of compressed oxygen, nitrous oxide, and air. The room itself likely has flammable construction.  We probably have about 50 employees in the building, plus hundreds of students during the academic terms.


All the science faculty are (rightly) having a conniption fit and demanding that the A/V rack be moved to another room.  However, the city fire chief inspected and said that “cylinders were properly stored and there was no open flame in the room”, so no move was necessary, as no code was violated.  So now the administration is dragging its feet, saying that the rack doesn’t need to be moved (and IT suggested that we should just plug it back in).


Are there resources out there to convince the higher level of Administration that this situation is inherently hazardous and worth the resources to correct?  Besides pedantically explaining the fire triangle/tetrahedron to them and bringing up the Apollo 1 fire?  Or are the entire biology, chemistry, physics and nursing faculty (and I) all over-reacting?


Thanks for your help,


Nora Dunkel

Chemical Safety Officer

Webster University

314-246-2244 (office)




--- For more information about the DCHAS-L e-mail list, contact the Divisional membership chair at membership**At_Symbol_Here** Follow us on Twitter **At_Symbol_Here**acsdchas

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.