Re: Double Dipping

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jeffbuck@swcp.com
Date: 11/26/01-03:38:19 PM Z


Sandy: Thanks. How much sodium sulfite? Like in a liter of working
solution? -jb

Sandy King <sanking@CLEMSON.EDU> said:

> Jeff,
>
>
> Garimo's procedure with rotary processing is well-documented and has
> been in use since the early days of PMK. It is not, however, the only
> method of reducing the general fog caused by oxidation with long
> development times in PMK. Another method simply calls for adding a
> small amount of sodium sulfite to the working solution. Another
> solution is to add a small amount of ascorbic acid.
>
>
>
> Sandy King
>
>
>
>
>
>
>
> >I saw no one comment on Garimo's procedure of changing to a fresh batch of
> >pyro developer in the middle of the development period in order to defeat
> >oxidation. I've wondered about this because, although I use trays and not
> >rotary, my development time in PMK is pretty long -- 12 minutes. -jeff
> >buckels
>
>
> --
>

-- 


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