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Subject: Re: LN2 for tissue storage
Date: Thu, 23 Aug 2007 10:43:58 -0400
Author: "Jackson, William" 		Next by Date:
Subject: 5 responses RE: [DCHAS-L] LN2 for tissue storage
Date: Fri, 24 Aug 2007 09:40:40 -0400
Author: List Moderator


Date: Fri, 24 Aug 2007 07:40:29 -0500
Reply-To: Vic.Edwards**At_Symbol_Here**AKERKVAERNER.COM
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: Vic.Edwards**At_Symbol_Here**AKERKVAERNER.COM
Subject: INSULATION OF CRYOGENIC VESSELS AND PIPING TO PREVENT COLD BURN
OF PERSONNEL
In-Reply-To: A<72F919DD7D07B440A4B45FA2B57EAC45197C19**At_Symbol_Here**EXCHANGED.mgmt.ad.uconn.edu>


 
We are designing facilities that will handle cryogenic liquids (-160 C).
Piping and equipment will be insulated not only to minimize heat
transfer into these fluids, but also for protection of personnel from
cold burns. We have seen conflicting guidance on the minimum allowable
surface temperature for insulation to prevent cold burns. 

Can you cite any definitive guidelines for allowable surface
temperatures to prevent cold burns?

Thanks and best regards,

Vic
 
Victor H. Edwards, Ph. D., P. E.
Director of Process Safety
Health, Safety, Environment
Aker Kvaerner, Inc.
3600 Briarpark
Houston, TX 77042
Office: +1 (713) 270-2817
Fax:    +1 (713) 270-3195
Cell:    +1 (713) 724-0406
e-mail: vic.edwards**At_Symbol_Here**akerkvaerner.com 

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