Archived posting to the Leica Users Group, 2003/12/14

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Subject: RE: [Leica] B&W Processing Procedure with a Jobo
From: "Don Dory" <dorysrus@mindspring.com>
Date: Sun, 14 Dec 2003 09:02:55 -0500

Richard,
For a commercial lab of any size, all of your developing chemicals would
be hazardous waste in California.  With that said, the bleach fix is
probably the most hazardous to the environment as it both contains
silver which can be very toxic in some of its combinations and the
bleach which by its nature is aggressive to other chemicals.

Don
dorysrus@mindspring.com

- -----Original Message-----
From: owner-leica-users@mejac.palo-alto.ca.us
[mailto:owner-leica-users@mejac.palo-alto.ca.us] On Behalf Of Richard F.
Man
Sent: Sunday, December 14, 2003 5:49 AM
To: leica-users@mejac.palo-alto.ca.us
Subject: [Leica] B&W Processing Procedure with a Jobo

OK, my first two rolls of B&W since about 21 years ago or are now
drying. 
One nice thing with slides is that it is just so exciting to see the
images 
coming to life, with negatives and especially B&W, sort of have no idea 
what it really would be like.

I use Press Maxx on TMY, exposed at AS200 and developed 30% shorter 
(supposedly give better scan according to Barry Thornton. May as well
"go 
for broke" and try all new things). My main question is this: with the 
color E-6, you reuse the chemicals (up to 3 times). Does one do the same

for the B&W Chemical or just throw them out (or put them away for
hazardous 
waste disposal)? I'm pretty sure the developer goes, but how about the
Stop 
Bath, Fixer, and PhotoFlo drying agent? I am also using Heico Perma
Wash, 
does that get reused ?

Speaking of Hazardous Waste, for the Color E-6 chemical, I am saving the

Developers (First and Color), and the Stabilize as hazardous waste, but 
assuming the Bleach/Fixer is OK to dispose in the sewage system (this is

Bay Area, CA). Am I correct?

Thanks for suggestions, comments etc.

// richard (This email is for mailing lists. To reach me directly,
please 
use richard@imagecraft.com) 

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