[Leica] Xtol ramblings

[John Collier <jbcollier@powersurfr.com>]

The bit you quoted does not say that. It did say that if Xtol is stored for
longer than six months, there may be problems with diluted solutions of 1:2
or 1:3. Whether this is actually a problem depends on your methods and
chemical consumption.

John Collier

> From: Rolfe Tessem <rolfe@ldp.com>
> 
> To me, it is clear that Kodak is now recommending against Xtol dilutions
> greater than 1:1 or, at a minimum, says you do so at your own risk.


> -------------------------------------------------------------------
> Note:Kodak has tested XTOL Developer for long-term keeping by using
> typical equipment and procedures. Results indicate that mixed XTOL
> Developer stored for one year at room temperature (70°F [21°C]) in a
> full tightly closed bottle provides satisfactory results with Kodak
> black-and-white films when used at full strength. Some customers,
> however, have reported problems with developer stored for periods
> between six months and one year. Most often the problems related to loss
> of developer activity when customers were using a 1:3 or 1:2 dilution of
> the developer to process KODAK T-MAX 100 Professional Film.
> To help ensure best results, we have changed our recommended shelf life
> and dilutions for XTOL Developer. The new recommendations are the same
> as those for KODAK Developer D-76 (full strength and 1:1). The change in
> recommendations does not indicate any change in the formulation of the
> developer. If you have been consistently obtaining satisfactory results
> with diluted developer and you use the mixed developer before keeping
> characteristics can become a concern, you may want to continue your
> current procedures. However, Kodak publications will no longer include
> development recommendations for the 1:2 and 1:3 dilutions of the developer.
> -------------------------------------------------------------------

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