Sukura-Finetek has a new product out to check both the pH and the
concentration of your formalin.  They are test strips and are called
Tissue-Tek Accu-Form strips.  The numbers may be obtained by calling Sakura at
1800-725-8723.


"Mohammed, Sayeed" wrote:

> Hi Histonetters.
> Recently a neighboring lab had a problem with two different batches of
> formalin from the supplier. One batch was not fixing the tissue( routine
> tissue ) properly, whereas the other batch fixed it in the same time and
> same type of tissue. The supplier did not have any answers except " we
> checked the batch and found nothing wrong with it." The techs in the lab
> checked both batches for pH and found no difference. So, my suggestion was
> to check the concentration. Any netters out there have an idea.
>
> *       M. Sayeed
> Email: sayeed@www.urol.bcm.tmc.edu