From: Judy Seigel (jseigel@panix.com)
Date: 02/27/01-11:03:08 PM Z
On Tue, 27 Feb 2001, Jeffrey D. Mathias wrote:
> ... However, hydrogen peroxide is also
> sometimes used as a contrast agent with some alt-process coatings, and
> in this use accurate knowledge of the solution strength is required for
> consistent results.
Well that figures... Only one I've heard of, BTW, is for some pt/pd
coatings. Are there others?
Judy
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