I know it's a long shot, but some here surely have some deep knowledge of processing chemistry:
I am shooting BW 16mm film, just for the fun of it. Family stuff, that is very important to me to keep on the log term.
It's Tri-x reversal.
the process involves negative development, dissolution of the formed image in a sulfuric acid solution, exposure to light to "burn" all remaining sensitive material, re-developement, fix and rinse.
I did the process myself at home a few times. It involves a lot of work, and is quite messy. This process ended with a sequence involving (in rewind tanks):
10 min fix
2 min rinse
2 min Hypo cllear
6-10 min rinse
final rinse with wetting agent
Since then, I have started to send those film to a company, and later discovered that they only fix for 2 min, and rinse for 2min, and that's it.
As said, am concerned by the long term archivability of these films, and I have started to re-do the whole last part on the films I received from them, but I'm starting to wonder if it is necessary:
My thoughts are:
since no sensitive material is supposed to be left in the film, maybe the short fix is enough?
if a short fix is done, maybe there is no need for the Hypo clear/long rinse?
re-doing the process is not such a problem but drying the films is a mess, and sometimes results in damage to the film. If I can be quiet about the archivability, I would gladly skip this step, but I need to be sure...