For all of you who use KODAK's HC-110 you may or may not know that
the concentrate keeps almost indefinitely if unmixed. To that end I have
listed a breakdown of how to mix the various dilutions DIRECTLY FROM
THE CONCENTRATE. There are some precautions in mixing the
developer directly from the concentrate. 1) Allow sufficient time for the
concentrate to run down the inside of the graduate to ensure the
proper measurement. (You may want to purchase a 10 cc syringe which
should be graduated in 10ths and a larger syringe to hold 30 cc from
a local laboratory supplier. This will ensure an exact measurement.)
2) Make sure the concentrate doesn't have any bubbles in it. 3) Be
sure to rinse the graduate at least 6 or 7 times to get all of the
liquid out of it before adding the rest of the water to make up the
final volume. 4) Make sure you mix the developer slightly longer than
normal since you're mixing from the concentrate and not a stock solution.
Here are the breakdowns for the various dilutions:
| Dilution |
Parts Concentrate |
Parts Water |
| A |
1 |
15 |
| B |
1 |
31 |
| C |
1 |
19 |
| D |
1 |
39 |
| E |
1 |
47 |
| F |
1 |
79 |
To make DILUTION A:
For 1 pint, 29.6 ml concentrate, 443.4 ml water.
For .5 liter, 31.3 ml concentrate, 468.7 ml water.
For 1 quart, 59.1 ml concentrate, 886.9 ml water.
For 1 liter, 62.5 ml concentrate, 937.5 ml water.
To make DILUTION B:
For 1 pint, 14.8 ml concentrate, 458.2 ml water.
For .5 liter, 15.6 ml concentrate, 484.4 ml water.
For 1 quart, 29.6 ml concentrate, 916.4 ml water.
For 1 liter, 31.3 ml concentrate, 968.7 ml water.
To make DILUTION C:
For 1 pint, 23.7 ml concentrate, 449.3 ml water.
For .5 liter, 25.0 ml concentrate, 475.0 ml water.
For 1 quart, 47.3 ml concentrate, 898.7 ml water.
For 1 liter, 50.0 ml concentrate, 950.0 ml water.
To make DILUTION D:
For 1 pint, 11.8 ml concentrate, 461.2 ml water.
For .5 liter, 12.5 ml concentrate, 487.5 ml water.
For 1 quart, 23.7 ml concentrate, 922.3 ml water.
For 1 liter, 25.0 ml concentrate, 975.0 ml water.
To make DILUTION E:
For 1 pint, 9.9 ml concentrate, 463.1 ml water.
For .5 liter, 10.4 ml concentrate, 489.6 ml water.
For 1 quart, 19.7 ml concentrate, 926.3 ml water.
For 1 liter, 20.8 ml concentrate, 979.2 ml water.
To make DILUTION F:
For 1 pint, 5.9 ml concentrate, 467.1 ml water.
For .5 liter, 6.3 ml concentrate, 493.7 ml water.
For 1 quart ,11.8 ml concentrate, 934.2 ml water.
For 1 liter, 12.5 ml concentrate, 987.5 ml water.
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