Printech Archive
Re: Plate Processor/Developer Effluent


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From: gjonesprinting@aol.com
Date: Fri Mar 17 2000 - 14:50:59 CST


Briggette:

If the pH is 12 or higher, then you are most likely using a new direct to
plate system. With a pH that high, I would be concerned about the integrity
of the sewer lines. Nevertheless, the best approach to determining
acceptability of discharges is to first obtain a copy of the sewer code and
then conduct testing at the point where the facilities sewer line meets the
main line. Composite sampling is preferred over grab.

Gary Jones
Graphic Arts Technical Foundation
200 Deer Run Road
Sewickley, PA 15143
412/741-6860 x608 - Phone
412/741-2311 - Fax


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