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Thread: Hypo Check

  1. #1

    Question Hypo Check

    What's the consensus on whether and what Hypo Check chemistry works?
    I use the Edwal solution. It seems that the fixer exhausts a lot quicker than what it's supposed to.
    Thanks in advance!
    steve

  2. #2

    Join Date
    Sep 2003
    Location
    Buffalo, NY
    Posts
    286

    Re: Hypo Check

    Steve,
    If you are using a rapid fix the Edwal hypo check will show a precipitate rather quickly. If you test about 1oz with a few drops and mix it well it will clear up, if not, the fixer is beat.

  3. #3

    Re: Hypo Check

    I just use small slivers of 35mm film. I put some fixer in a shot glass and drop in a piece of film and see how long it takes to clear then I double that in the fix

  4. #4

    Re: Hypo Check

    Robert, thanks for the info. TF-5 is supposed to be good for 30-8X10s/liter, but when I test it after 10-12 prints the precipitate is very apparent. I guess the trick is to see if it clears. If not then it's exhausted.
    Wallace: the film strip test is a good confirmation. Thanks, I'll keep those tips in mind. I've probably been throwing out good fixer. Grrr....
    Steve

  5. #5

    Join Date
    Jul 2008
    Location
    Montreal
    Posts
    1,437

    Re: Hypo Check

    I have made charts and count sheets. I cut the factory recommended limit

  6. #6

    Join Date
    Sep 1998
    Location
    Oregon now (formerly Austria)
    Posts
    2,552

    Re: Hypo Check

    There is a rather large discussion of this topic along with various other ways to determine the exhaustion of fixer at APUG. Perhaps it would be of interest.

    http://www.apug.org/forums/forum37/7...i-looking.html

    Good luck,

    Doremus Scudder

  7. #7

    Join Date
    Jan 2007
    Location
    Minneapolis, MN
    Posts
    1,255

    Re: Hypo Check

    Quote Originally Posted by Wallace_Billingham View Post
    I just use small slivers of 35mm film. I put some fixer in a shot glass and drop in a piece of film and see how long it takes to clear then I double that in the fix
    +1 That's how it's done, without extra fuss or muss.

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