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DK-25R shelf life?

removedacct2

Member
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May 26, 2018
Messages
366
I use D-23 replenished for x-rays film. I mix 1 liter of D-23 and one liter of DK-25R.
Recently I did shot less and I notice that the remaining DK-25R is turning yellowish. Oxydation. But does that mean a significant decrease in working power? I would discover by myself of course but I prefer to not waste 8x10 sheets (even if cheap x-rays ones).