> >For that, I wear a neoprene apron, neoprene gloves, goggles and
> >an ammonia mask.
Is there an ammonia mask that is actually usable? My first full time job
(1985) was developing and duplicating microfiche. The masters were done with
standard sort of film and developed in normal Ilford b&w developers but the
duplicates were developed using ammonia. It wasn't too bad until you had to
empty the waste bottles. The masks we had were hard to see out of and didn't
fit quite perfectly, so as you were craning your head this way and that to
see what the hell you were doing the mask would shift and you would get a
big dose of ammonia vapour inside the mask. In the end most people ignored
the mask and did things at arms length, down wind.
And then there was the time I went to pour the fixer into the overhead
replenishment system, but forgot to take the lid off the tank... Luckily we
had labcoats for the messy jobs.
BTW, the microfiche master film would have been about 4" wide in maybe 100 -
200' rolls which made the whole thing a computerised LF camera with a damn
big motor drive. The recording unit was about 5'x3'x3' - just a bit bigger
than an MX with a 250 shot back.
Paul Ewins,
Melbourne, Australia
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