View Full Version : Btzs Film Test Question

kev curry
8-Nov-2008, 04:30
I'm just about to do a Btzs (tubes) film test HP5+/ID11. The stock solution is only 5 weeks old and in good shape but I'm wondering if I should mix a fresh batch for the test?
What would you folks recommend?


Jay Wolfe
8-Nov-2008, 05:40
If you're going to the trouble to do the test, I'd use fresh chemistry. You don't want to have to do them over again.

Also, in my experience D-76 (ID-11 cousin, I believe) doesn't have a long shelf life unless it's in a very full bottle.

kev curry
8-Nov-2008, 06:36
Thanks Jay I'll mix fresh just to be sure.