[pure-silver] Re: HC 110 question ...

I also use a narrow Jobo 2 ounce graduated cylinder with metric markings, and usually use Dil. H, sometimes Dil.E, occasionally Dil B, and have had no trouble with consistent results for either half-liter and full liter stainless film cannisters.

bill h


----- Original Message ----- From: "Koch, Gerald" <gkoch02@xxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Tuesday, May 30, 2006 12:59 PM
Subject: [pure-silver] Re: HC 110 question ...


I have no problems measuring HC-110 concentrate using a polyethylene 10
ml graduated cylinder.  The only thing that is a bit unusual is that
there is little or no meniscus.  I dilute 1:50 for convenience and use
the times recommended for dilution H (2X dilution B).

The diluted stock solution has limited keeping properties while the
concentrate is eternal.  I forget Kodak's recomendation, 3 months for
partially filled bottles?

Jerry
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