Date: Tue, 23 Feb 2010 10:30:58 -0600
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: "Yarrow, Gary" <Gary.Yarrow**At_Symbol_Here**SDSTATE.EDU>
Subject: Re: Decommissioning Fume Hoods/Traps
In-Reply-To: <4B83A82D.9B43.00BA.1**At_Symbol_Here**>

One thing that we found out the hard way, is that there was a buildup of su
lfuric and phosphoric acid on parts of it.  This was an older hood, not the
 greatest flow from a room with lots of heat, and we live in a cold climate
, thus it would precipitate.  Now we test every joint that we can reach and
 make sure the contractors have tyvek suits on when taking them apart.

Dr. Gary L. Yarrow,  Director
Environmental Health & Safety 
Shepard Hall 059; Bldg 2202
South Dakota State University
Brookings, SD  5700-7-0896

> If you were requested to "evaluate laboratory fume hoods for the potentia
> of hazardous materials through wipe sampling", and you knew no
> perchlorates were ever used, did you test for anything else?  (What mater
> actually CAN be analyzed this way?  These are fume hoods that need a wipe
> down, but aren't showing signs of significant contamination)
> If you were requested to 'biologically and chemically decontaminate traps
> for chemistry labs, what did you/your outside contractors do?
> I want tomake sure these areas are safe for the workers, and will contrac
> out this work to a hazmat/hazwaste specialty vendor, but I want to know
> what is reasonable to do...I have a fair idea of the history of most of t
he labs
> so if there is a 'flow chart' approach that would be very helpful.

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