[Histonet] Neutralization of Formalin

From:Schaundra Walton

Hi everyone!
  Our lab neutralizes our 10% formalin before dumping it down the drain.  We use Formalex (American Master Tech) to neutralize and then add sodium hydroxide to balance the pH.  We had been using residual formaldehyde test strips to test the ppm (Market Lab) before dumping, but they have been discontinued.  We have tried to replace them with EM formaldehyde test strips (Fisher Scientific), but we are having trouble getting them to work.  Anyone else neutralizing their formalin?  What are you using and are you testing it before dumping it?  

Schaundra Walton BS HTL(ASCP)
Swedish American Hospital
1401 E. State St. 
Rockford, IL 61104
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