Date: Thu, 2 Sep 2010 12:15:23 -0400
Reply-To: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: List Moderator <ecgrants**At_Symbol_Here**UVM.EDU>
Subject: 2 Re: [DCHAS-L] transporting chemicals on the elevator

From: fred.simmons**At_Symbol_Here**
Date: September 2, 2010 12:09:06 PM EDT
Subject: Re: [DCHAS-L] transporting chemicals on the elevator

Here's what we say procedurally: 

=B7When transporting compressed gas cylinders on an elevator, it should be accomplished by the minimum number of persons.  All other persons should be excluded from the elevator while the cylinders are present. 
=B7When transporting cryogenic fluids in any quantity on an elevator, it is preferable to use a =93freight-only=94 elevator, with the task completed by the minimum number of persons. All other persons should be excluded from the elevator while the containers are present. 
=B7Whenever possible, transport bulky or heavy cryogenic fluid containers only on a freight elevator, without any personnel present. Once the container is placed in the elevator, lock out the elevator to all other users. The sender will remain outside the elevator and activate it. Receiving person on the destination floor will take the liquid container off the elevator. If a freight elevator is not available, use a passenger elevator in a similar manner. If an attendant must accompany the container in the elevator, an escape pack supplemental breathing apparatus must be carried in the elevator.

=B7NFPA 55, Standard for the Storage, Use, and Handling of Compressed Gases and Cryogenic Fluids in Portable and Stationary Containers, Cylinders, and Tanks (2005 edition) 
=B7Compressed Gas Association, P-1, Safe Handling of Compressed Gases in Containers 
=B7Compressed Gas Association, P-12, Safe Handling of Cryogenic Liquids 



From: "Eric Clark" <erclark**At_Symbol_Here**>
Date: September 2, 2010 12:02:04 PM EDT
Subject: Re: [DCHAS-L] transporting chemicals on the elevator

Thanks for a good elevator suggestion.  You absolutely do not want to get stuck on an elevator for an extended period of time - even without hazardous materials - especially as an exempt employee because you can't recover the overtime or comp time.  

I noticed you were over at Occidental College in Los Angeles.  Just an FYI - in California you're permitted 6000 cuft of asphyxiating cryogenic/compressed gas in the building unless you have some kind of engineered-in device approved by the LAFD (perhaps you do).  A large dewar might put you over the 6000 cuft; and that might mean adding another item to your to-do list.  We plumb-in LN2 and Ar through an exterior wall into the building though insulated pipe.  

Eric Clark, MS, CCHO, CHMM 
Safety & Compliance Officer 
Los Angeles County Public Health Lab   

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