I am interested in working with HC-110 and your video was very helpful. Your use of the scale is a smart solution. Thanks for the video. BTW, the specific gravity of the new formulation of HC-110 is reported on the updated SDS to be 1.26. I have computed the per roll cost for just the HC-110 chemistry as $1.40 whereas XTOL chemistry cost per roll is $0.53. (My Paterson tank requires a minimum of 595 ml of developer.)

@bigdogdougcambridge1008

3 жыл бұрын

Thanks great to hear.

i need to correct my msg posted yesterday. i read the wrong table in kodak's hc-110 document in my attempt to determine dilution. i would use 1:62 and then the per roll chemistry cost is currently $0.34, less than xtol.

ilfotec HC is the more available version here in the UK. I thought of this but could not find a density measurement for the straight syrup. Guess if I use 1.24 as I would with Kodak it can't be a million miles away...

@bigdogdougcambridge1008

2 жыл бұрын

Ilford’s datasheet give specific gravity for 1+3 dilution at 1.065-1.070. Given 1.07 we can figure the specific gravity of the concentrate. 1.07=(x+3)/4 x=1.28 so close to 1.24 probably not enough to make much difference.

What if your scale has ml as a unit, could that be used without knowing the gravity?

@bigdogdougcambridge1008

4 жыл бұрын

Yes ml should be the same as grams. I never understood how a scale could know ml which is technically the volume of a substance without knowing what the substance is that you are weighing. I believe it is only referring to ml with respect to water where 1 gram is 1 ml in the metric system. My scale has both grams and ml settings and they always read the same number so ml and grams are interchangeable.