Date: Tue, 13 Apr 2010 17:36:55 -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: "Samuella B. Sigmann" <sigmannsb**At_Symbol_Here**APPSTATE.EDU>
Subject: Re: Explosion Proof Refrigerators
In-Reply-To: <676144321.9475261271179307236.JavaMail.root**At_Symbol_Here**>

An explosion proof unit will have to be direct wired into the grid.  
They do not have a plug as that would be an ignition source for the 

drsamples**At_Symbol_Here**COMCAST.NET wrote:
> I have a question about "explosion proof" or "explosion resistant" 
> refrigerators/freezers.  Where is the best place to put one in a lab? 
> Where are places to avoid putting them in a lab? What kind of 
> ignitions sources should be avoided and how far away from these 
> sources can the flammable or explosion proof refrigerator be safely 
> installed? Do we have to worry about nearby lights and electrical outlets?
> Another question that has come up for us is this: if the MSDS sheet 
> states that mechanical ventilation is needed for a flammable solvent, 
> does Cal OSHA mandate that this MSDS be followed? Obviously, for 
> safety reasons we should, but we are having trouble getting our 
> facilities people to understand this. The only thing they understand 
> is when we say "it's the law".  We are purchasing new stand-alone flam 
> cabinets and we would like mechanical ventilation, but they don't want 
> to go to the trouble and expense. Currently, the only mechanically 
> ventilated flam cabinets we have are the small ones underneath fume 
> hoods. These are in the teaching labs and they have no locks, so we 
> are hesitant about using them to store larger quantities of flammable 
> solvents.
> Thanks for any help!
> Marjorie Samples
> Chemistry Dept.
> Folsom Lake College

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