I recently purchased some equipment from a comercial photolab and in the deal I recieved a sizeable quantity of Gamma Plus Film Dev., Factor One print dev. and HQ Warmtone Print Dev. I would appreciate any info on the characteristics of these chems. seems a shame to toss them if they will work. 10 Quarts of assorted chems. I was told that they were less than a year old. None have been opened.