Hazardous materials are moved on a freight elevator, not a "personnel" elevator. Whenever possible, the HM is secured within the elevator car and it rides unattended. Someone is on the desired
floor/level waiting to Ôreceive' the HM when the elevator door opens.
SJM
*******************
Steven J. McLean, ASP, CHMM
Academic Safety Manager
Risk Management, Safety, and Compliance
Brigham Young University
241 FB | Provo, UT 84602
stevemclean**At_Symbol_Here**byu.edu
Office: (801) 422-6879
Cell: (801) 960-5203
From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
On Behalf Of Bell,Martin
Sent: Friday, May 11, 2018 6:54 AM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: Re: [DCHAS-L] Elevator Entrapment while Transporting a Liquid Nitrogen Dewar
Good morning,
We recently had an incident where a researcher was momentarily trapped in an elevator while transporting a 230 liter Dewar of liquid nitrogen. Thankfully the
researcher walked out of the elevator a few seconds later.
This incident raised a concern about the potential for asphyxiation if an entrapment occurred and the Dewar released nitrogen gas into the elevator cab (unlikely
but need to prepare). We have elevator rescue protocols in place but the response time depends on the time of day.
Has anyone addressed this type of concern?
Martin W. Bell, M.S. CIH CSP
Director, Environmental Compliance
Department of Environmental Health and Safety
Drexel University
400 North 31st Street
Philadelphia, PA 19104
Tel: 215.895.5892 | Fax: 215.895.5926
Mobile: 215-778-4278
drexel.edu/facilities/healthsafety
--- For more information about the DCHAS-L e-mail list, contact the Divisional membership chair at
membership**At_Symbol_Here**dchas.org Follow us on Twitter **At_Symbol_Here**acsdchas
