Size selection is critical only for HYPO, because fixer goes bad in air (smells like rotten eggs)
and small bottles are needed for long shelf life.
The Diafine developer chemicals are dry chemicals, the other chemicals are liquid.
Dry chemicals are difficult (practically impossible) to sub-divide for small mixtures,
so I use one-quart packages of Diafine and mix full quarts.
The other chemicals are available in liquid form,
so I mix single working-solution bottles of these chemical solutions as needed.
|gallon, gal||4 qt||128||3.785|
|quart, qt||2 pt||32||0.946|
|pint, pt||2 cup||16||0.473|
|ounce, oz||1 oz||1||0.030|
|15 ml||1/2 oz||0.5||0.015|
|20 drops||1 ml||0.034||0.001|
|note:||1 ml equals 1 cc||
Now consider the bottle material: glass or plastic.
Glass is best chemically but plastic can be squeezed to expel air
(really only applicable to fixer, but I don't bother),
and plastic is lighter and less likely to break.
I use glass for all hard chemicals (DEVA, DEVB, and HYPO),
so these go in 8 oz glass bottles, small mayonnaise jars.
DEVA and DEVB storage-solutions go in 32 oz bottles, large glass instant-coffee jars.
AQUA, FLOW and WASH go in plastic (PETE
) quart bottles.
For HYPO (marks at 6 oz and 8 oz) and WASH (marks at 24 oz and 30 oz)
I mark measurement points on the bottles after pouring measured tap water
so to never put chemicals into measuring device.
Important! Label each bottle and cap with the four-letter names.
Some of these chemicals are dangerous to skin and the fumes can be annoying.
Also, a dust-free environment is essential.
Close doors and windows. Shut off heating or air conditioning.
Run an air filter but don't aim at work area.
Shut off air filter while working with film and chemicals.
Minimize air flow around work area.
Never allow chemicals contact skin. Wear safety-glasses, gloves and apron.
If you can smell the fumes, wear a mask, but none of these chemicals have dangerous fumes.