[Histonet] Need your expertise

Rene J Buesa rjbuesa <@t> yahoo.com
Thu Sep 12 15:49:24 CDT 2013

Formalin is extremely dangerous, everybody know that, so my course of action has always been to interact with formalin the least possible.
I did not recycle xylene, nor I recommend you to do that.
Of the 2 possibilities you mention the absolute worse is what you call "true recycling" of distillation. Not only you will be more exposed to the fumes but at the end you will have to work with the distillate in order to prepare NBF and later aliquot it.
The second option (filtering) is less dangerous but you will have to collect the filtered liquid, check for its strength and aliquot it.
The fact that you recycle formalin will not make you "greener" because, do you think that the specialized companies disposing of formalin dump it in the environment? They eliminate it in an innocuous form.
Buy formalin prefilled vials and do not mess with it. Your health and that of your colleagues is worth more than a few dollars you are going to save. That is my sincere advise.
René J.

From: "Webb, Dorothy L" <Dorothy.L.Webb <@t> HealthPartners.Com>
To: "'histonet <@t> lists.utsouthwestern.edu'" <histonet <@t> lists.utsouthwestern.edu> 
Sent: Thursday, September 12, 2013 12:45 PM
Subject: [Histonet] Need your expertise

We will finally be going green by recycling formalin.  I would appreciate any advice or opinions on true recycling VS. a filtering type of system. As we all know, experience with a system or product is the best way to gain true knowledge!

Also, I would appreciate knowing how others are handling extra levels of prostate needle bx's.  We currently place them on charged slides and keep until the case is signed out, but it seems there should be a better way of handling this due to storage of the slides not to mention the extra cost involved! I know this is becoming more of a needed process with all of the RNA/DNA testing being done on diagnosed cancers.

As always, I do appreciate any and all comments, advice, or words of wisdom!!  Hope to see some of you in Providence late next week!

Dorothy Webb, HT (ASCP)
Regions Histology Technical Specialist

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