This is the sort of thing that I was looking for.
Originally Posted by pentaxuser
Now let me take my questions a step further: what is the shelf life of the chemistry kits. I will most likely be using the kits in one-shot fashion. If I remember what I've read, I will dilute the chemicals from concentrate to use "today." The rest of the concentrate I return to the shelf for use another day. Once finished developing today, I will dispose of the working solutions.
Thus, I don't really care about the shelf life of the working solutions; they'll be thrown away immediately. But I do care about the shelf life of the concentrates, both for the 3-bath and the 6-bath kits.