Tetenal stop life expectancy.

[Paul Green]

I have been given a box of left over darkroom bits and in it is an unopened bottle of tetenal stop bath. I have no real idea how old it is but assume at least five years; I can’t find an expiry date. Do you think it’s worth trying out or is it toast?

Cheers,
Paul.

 

[pentaxuser]

I would have thought that the life of unused stop bath( it may be citric but more likely acetic acid) is virtually indefinilte. I have some Fotospeed stop which must be now the best part of 5 years old and still going strong.

pentaxuser

 

[Paul Green]

Great, thank you!