Dean:(posted 8858 days ago)The 30 second fix is the recommended time for Ilford RC paper in Ilford's Rapid Fix at 4:1 dilution. I've been using the ilford archieval processing sequence for a little over a year and I can shorten washing times primarily because of the short fixing times and use of their wash aid. The recommended fix for FB papers is 60 seconds in the 4:1 dilution, followed by a 5 minute wash, 10 minutes in the wash aid and a final 10 minute wash. I saves a considerable amount of time in the darkroom and is based on sound science published by Ilford. FWIW.