I sympathize. I read a thread similar to this a year or two ago
Originally Posted by Lee Shively
at rec.photo.darkroom. I'd always used the universall convention
of the colon when expressing ratios. I've returned to darkroom work
after many years absence.
I read a number of posts declaring that the unique nature of
photographic chemistry sets it apart from all else when expressing
ratios. So, I adopted the + ; 1+1+8 rather than 1:1:8. The first
reads one part A PLUS one part B PLUS eight parts C while the
second reads one part A TO one part B TO eight parts C.
To make a long story short, I've gone back to the universally
used convention of the colon when expressing ratios. The colon
is just TOO universally used. I think I've been using it for at
least 50 years and not been once out of line in doing so. Dan