[Histonet] Formalin filtering, reuse, expiration date questions

[Morken, Timothy]

For those using formalin filtering to recycle formalin (i.e. Creative Waste Solutions formalin filtering unit or other methods), how have you liked it?

How many times do you reuse the formalin (and how do you tell?!)

How do you handle an expiration date for the filtered formalin?

For those using the Creative Waste unit, how well does the assay work for determining concentration?

Thanks for any and all info!!

Tim Morken
Supervisor, Histology, IPOX
UC San Francisco Medical Center