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Response to HC110 dilutions NO STOCK, straight...with Tri-X@EI1600

from Conrad Hoffman (choffman@rpa.net)
There's nothing wrong with directly diluting HC-110 and lots of people do it. I just want to add that the rational of making the stock solution first is that it's hard to accurately measure small volumes of the thick concentrate. Since you're doing lots of film, making up the stock solution seems a wiser path. If you go direct, use a very small graduate and rinse it back into the solution you're making. Try to estimate the potential errors at the quantities you're dealing with and if it could be 5% or so, maybe reconsider why you're doing it this way.
(posted 8662 days ago)

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