Hi all, Having read a few posts and a couple of bits in books about how to set up an archival print processing system, I thought I'd better verify how close I was getting to the real McCoy. I contacted Silverprint in the UK to obtain a Kodak Hypo Estimator and some Hypo Test Solution. They went away and talked amongst themselves for a while. Then they came back and informed me that these products were no longer available... ...to them from Kodak. "Oh dear", I said (or words to that effect). The questions I would like to pose to the esteemed and knowledgeable persons in this forum (and anyone else that happens to be passing! ) are: 1) Have the products been discontinued by Kodak, or are Silverprint mistaken? 2) How else can I test for residual hypo levels? Thanks in advance, Frank ...Belt, braces and a piece of string... ...only without the belt and braces.