[alt-photo] Re: Zia standard solutions

[Vedos]

Thanks Terry!
Yes, I am aware of the percentage solutions. I was just wondering if it is important to make the final volume to 25 ml (only Sullivan/Weese mentioned "water to make 25 ml"), or should I dissolve the chemicals to 25 ml (so the total volume would be a bit larger). But I guess, as I've learned from you guys, they are normally talking about final volumes in photographic formulas...

- Jalo

________________________________________
From: alt-photo-process-list-bounces at lists.altphotolist.org [alt-photo-process-list-bounces at lists.altphotolist.org] On Behalf Of Terry King [terryaking at aol.com]
Sent: Tuesday, July 20, 2010 6:49 PM
To: alt-photo-process-list at lists.altphotolist.org
Subject: [alt-photo] Re: Zia standard solutions

Jalo


A standard solution is the amount of the material to be dissolved made up to the total amount with water.  The recognised way of expressing it is in terms of percentage solutions.  If you take 20 g of something and add water to make 100 ml that is a 20 % solution (which is what you get if you make 5 g up to 25 ml).


This way you will get consistency and avoid confusion.


TK












-----Original Message-----
From: Vedos <vedos at samk.fi>
To: The alternative photographic processes mailing list <alt-photo-process-list at lists.altphotolist.org>
Sent: Tue, 20 Jul 2010 15:17
Subject: [alt-photo] Zia standard solutions


Hello List,

I'm hoping to mix my first Ziatype solutions tomorrow. I have one basic
question:

I've been reading my three sources for Ziatype: The New Platinum Print by
Sullivan & Weese, Alt. Proc. Condensed by Chris Anderson, and Alternative
Photographic Processes (second edition) by Christopher James. They tell you to
mix your stuff with 25 ml water, only Sullivan & Weese say: water *to make* 25
ml (the final volume)...

So, should I take 25ml water and dissolve into that, or dissolve into a smaller
quantity and fill up to 25 ml... or does it really matter?

regards,
Jalo


-- If you only look at what is, you might never attain what could be --

V E D O S
Alternative Photographic Processes
Satakunta University of Applied Sciences
vedos at samk.fi
http://vedos.samk.fi
http://www.samk.fi
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