[pure-silver] Re: Hardening fixer for film
- From: Snoopy <snoopy@xxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Tue, 17 Apr 2007 11:00:42 +0200
At 18:31 16.04.2007, you wrote:
It would be interesting to know when IPI
tested Sistan. A few years ago I had
considerable correspoindence with Dr. Douglas
Nishimura of IPI about several permanence
issues. He mentioned that Sistan had never been
given a formal test. I have to go by memory but
I think he said that they started to test the stuff and Agfa withdrew it.
Dear Richard,
this might have something to do with the fact,
that there are two Sistans: the "old" Sistan -
this is the one I used in my long-bygone youth
and this is the one where I was told to use it in the AGEPON.
Then came (I don´t know when) "Sistan New". It
might well be that this was introduced because a
law disallowed a chemical component or marketing reasons or somesuch.
So it might be that they withdrew the old Sistan
from the test and then had the new stuff tested.
Because the data sheet where the info is from pertains to "Sistan New".
Actually if you don´t mind me saying so, I don´t
really care much if its "formally" tested. From
what people say here (and I trust them) it does
make a positive difference. Since all the
information here is for prints and I use it on
film I reckon I am "on my own" anyhow ??
Love,
Snoopy
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