When using a PPM / TDS meter you have to multiply the reading by 2 to
2.5 times to give you a rough ppm of the IONIC (dissolved) silver in
CS. In CLEAR CS this reading will be roughly equivalent to the a
TOTAL silver ppm in the CS. (i.e. the ionic silver plus the colloidal
silver). If the colloidal silver is NOT clear then any meter is a
pretty useless.
Alternatively use a meter that has a conductivity (EC) mode (like a
COM100) that measures out in microseimens. (uS). In that mode its
basically a 1 to 1 conversion so you don't have to double it like you
do with TDS/PPM mode. (But like a TDS meter its still only useful in
clear CS).
See Frank Key's www.silver-colloids.com site for comparisons of
electrical conductivity and Ag+ ppm
David
From: Lou Kraft <[email protected]>
Date: 25 September 2012 1:55:02 AM
To: [email protected]
Subject: Re: CS>Heat increasing ppm.
Yes, I am certain now that it is the conductivity that is showing
on my ppm meter. That being the case, and if most ppm meters are
being calibrated for NaCl (I have read), how do I get an accurate
Ag ppm assessment of my finished product? Using a standard TDS
meter and the fact that there is a difference in conductivity
between NaCl and Ag, how does the reading (10ppm) actually apply
for Ag ppm.
This prompts the questions - Is there a device (meter or way) for
measuring ppm Ag. more accurately.
If I am missing the point here with this just let me know. It just
seemed logical.
Thanks, Lou
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