[Histonet] B5 fixative

[histotech <@t> imagesbyhopper.com]

I was under the impression that B5, because of the mercury content, was
outlawed for use Jan 1, 2005.  But now I am not so sure!  Can anyone tell me
if there is a federal law regarding this?  We no longer use B5, we use B+,
but I know someone in OK who is using B5 (I am in FL).  Is he breaking any
laws by using it and/or should he be switched to an alternative like B+?

Thanks!

Michelle