Well I guess I'll have to look at it this way--I'm just going to be fooling around with X-Ray film, and the little bag of sulphite I got off EBAY SEEMS to have worked a miracle on this old smelly fixer concentrate, so I'm going to use it. I'll just go by the old rule of fixing for twice the time it takes to clear, and that'll have to be that. My little machine shop still hasn't had that "summer of recovery" I've heard about. Sure does look and smell like a fresh batch of Kodak Fixer as I remember it. We'll see.