[Histonet] Storage of liquid nitrogen

[koellingr <@t> comcast.net]

In a previous lab, we went through that. In order to keep the large nitrogen tank in a small room that had 2 access doors, there had to be an oxygen monitoring inside the access points. Oxygen level had to be at some minimal level otherwise an alarm would sound. Just in case, with doors closed, there was a leak and someone walked into a room whose air was lacking of enough oxygen. Close the door, get groggy, no one around and that is that. Was a pain in rear but considering the expansion of liquid N2 to gaseous state and how much volume it then occupies, I guess it makes sense. There have been such accidents that have occured. 


Ray Koelling 
PhenoPath Labs 
Seattle, WA 

----- Original Message ----- 
From: "Paula Pierce" <contact <@t> excaliburpathology.com> 
To: "Histonet" <histonet <@t> lists.utsouthwestern.edu> 
Sent: Friday, September 4, 2009 8:04:26 AM GMT -08:00 US/Canada Pacific 
Subject: Re: [Histonet] Storage of liquid nitrogen 

This is to prevent nitrogen suffocation in the event of a tank leak in a closed space. Just more regs to make life harder. Put in an exhaust fan. 

PKP 




________________________________ 
From: "Weems, Joyce" <JWeems <@t> sjha.org> 
To: Histonet <histonet <@t> lists.utsouthwestern.edu> 
Sent: Friday, September 4, 2009 9:48:45 AM 
Subject: RE: [Histonet] Storage of liquid nitrogen 


Not yet!! What in the world? J 

Joyce Weems 
Pathology Manager 
Saint Joseph's Hospital 
5665 Peachtree Dunwoody Rd NE 
Atlanta, GA 30342 
678-843-7376 - Phone 
678-843-7831 - Fax 




-----Original Message----- 
From: histonet-bounces <@t> lists.utsouthwestern.edu 
[mailto:histonet-bounces <@t> lists.utsouthwestern.edu] On Behalf Of Richard 
Cartun 
Sent: Friday, September 04, 2009 10:47 
To: Histonet 
Subject: [Histonet] Storage of liquid nitrogen 

We have been told by our Fire and Safety Department that we can no 
longer store our large liquid nitrogen tank in a closed room (no windows 
or outside ventilation). Has anyone else experienced this? Thank you. 

Richard 

Richard W. Cartun, Ph.D. 
Director, Histology & Immunopathology 
Director, Biospecimen Collection Programs Assistant Director, Anatomic 
Pathology Hartford Hospital 80 Seymour Street Hartford, CT 06102 
(860) 545-1596 
(860) 545-0174 Fax 


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