From: Art Chakalis (achakali@gcfn.org)
Date: 05/26/03-09:40:44 PM Z
> In all of my previous work with alternative printing I have been
> quite content to carry out measurement with the cc or ml, even down
> to 0.1 cc or ml with syringes. Now, in doing a little reading on
> Pt/Pd printing I see that the drop appears to be the unit of
> measurement. So how much is a drop? Is there such a thing as a
>standard drop?
>
> Sandy
-- Sandy, I have always used 20 drops = 1 cc for water based upon college chem labs (recent stuff . . . just a few decades ago). Before sending this note I checked several conversion tables and none of them show a conversion factor for 'drops'. The volume/size of a drop would certainly be dependent upon the surface tension and density of the fluid and would likely be affected by the shape of the dropper tip. The use of drops does seem a bit inane as compared to an accurate pipette. Art
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