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  1. #11

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    Dec 2004
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    Dear Rick,

    Great post. Thank you.

    Neal Wydra

  2. #12
    gainer's Avatar
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    Sep 2002
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    The old Edwal method was easier and probably just as reliable. The total fixing time for paper in their rapid fix was found by their tests to be the same as the clearing time for high speed film. That time was normally 1 minute for fresh fixer, but whatever it is, it is easily seen. The advice was to discard the fixer when that clearing time became double whatever it was in fresh fixer. One may reasonably expect that, since they were eager to sell fixer and not eager to have their product fail to satisfy, that their advice was suitably conservative as to remaining capacity.

    OTH, if one does not believe the efficacy of that criterion, a single snip of paper fixed for that time, exposed and developed, will tell if it is conservative or not. So one snip of film and one snip of paper can replace ..what did you say?
    Gadget Gainer

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