Chemical Questions

Discussion in 'B&W: Film, Paper, Chemistry' started by mhainz, Sep 30, 2003.

  1. mhainz

    mhainz Member

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    I have just been given a bottle of Ilfospeed paper developer. Still with the original seal intact but fairly old. I haven't been able to find much info on this and was wondering if it's any good. Till now I have just been using Ilford multigrade developer.
     
  2. Ole

    Ole Moderator Staff Member Moderator

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    I'm using seven years old multigrade developer today - opened the bottle half an hour ago. Still good. Just try it :wink:
     
  3. Jorge Oliveira

    Jorge Oliveira Member

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    Quick test:

    Take a small piece of photo paper. Place a drop of developer (as recommended by the manufacturer - dillution, etc) in it.
    Expose to light.
    If it turns black, in about 30s the dev is OK.

    Jorge O
     
  4. Black Dog

    Black Dog Member

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    It's surprising how long stuff will last, even if it hasn't been that well stored. Generally, two part devs have the best keeping qualities. A squirt of Tetenal protectan also works a treat.