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What is the shelf life of concentrate solutions used in film processing?
-- Genevieve Richards (water_dandytiger@hotmail.com), March 03, 2002
It depends on the chemical. Can you be more specific as to which chemicals you are concerned about? Stop keeps indefinitely. Concentrated fix in an unopened container keeps about 2 years. Developers differ widely in their keeping properties.
-- Ed Buffaloe (edb@unblinkingeye.com), March 03, 2002.