For what it's worth: I use the Kodak Dev/Repl RT (roller transport) (I buy from PDIsupply.com in Rochester, NY). The last time I bought some was back in 2007. I buy it in 25 Gallon sizes and I preserve it indefinitely (naysayers will never believe this but that is their collective problem: I have some that I have been monitoring for 12 years and it is as good as new).
Here is what you have to do: Parts A and B are vulnerable to oxidation (C is an extremely alkaline mixture and does not need oxidation protection). Either pour the A and B (SEPARATELY!) into either glass or high density clear plastic bottles (Gatorade, most sodas, juice, these containers are EVERYWHERE and do not 'breathe'). The problem is filling them up ENTIRELY to the brim. You can use glass marbles to take up the slack and I've found those tiny (50ml) liquor bottles extremely useful (oddly the ones with the metal caps work best; the ones with the plastic caps sometimes fail, but for the larger size bottles (ie, 500ml) the plastic caps provide a perfect seal).
You have two options: either do as I said, above, keeping the components separate, or actually mix the whole batch and store that way, but ALWAYS filling to the very brim. If you have the storage area this will probably be the best way to go.
But if you keep the components separate, as far as part C goes, I found out the hard way that, in its pure state, it will actually soften the walls of these clear, high density bottles and be unwise to store this way. Either keep 'C' in its original container or store in glass (need not be filled to the brim).
I actually feel sorry that so many out there are challenged to make these chemicals last literally forever. Few will heed. That becomes not my problem but I did take the time to reiterate what I have said many times in the past. The rest is up to you. If you have queries either email me HERE:
david33x@yahoo.com or call (Philadelphia) 215.569.4949. 'Nuff said. - David Lyga