uS is the symbol for Microsiemens as conductivity per cubic centimeter
of a liquid, used by conductivity meters. [ALL meters are conductivity meters]
Silver comes off the electrodes as conductive ions and some of it
converts to nonconductive forms over time [ "colloids" aka "particles" ]
that meters won't register.
Therefore, a meter reading drops over time without the water losing any
silver.
It's like making rock candy.
So long as the string of sugar crystals is still in the water, there's
still the same amount of sugar in the water as before the crystals formed.
Using a hydrometer on sugar water before and after..same thing as there
is less sugar "dissolved" in the water making the water less dense and
sinking the hydrometer more, but the crystallized string is still in the
jar making the total sugar in the jar the same.
Comparisons made by instruments that actually DO measure PPM, compared to
meter readings that DON'T [and none do] , show a close 1 to 1
correspondence between the conductivity "number" in uS and the PPM "number"
as actual PPM in silver water [ at around 10 -12 uS ] that has stopped
dropping its conductivity with colloid conversions completed. [aka
"stabilized" CS ]
Lower PPM CS will do fewer conversion than higher due to solubility
limits of silver ions in water not being exceeded as much, thus will drop
less.
So, when using a meter on low PPM CS you can fudge the meters number down
a little, but fudge it up some on very high numbers as very high PPM CS
will have a higher percentage of unreadable colloidal particles.
At over around 30 uS, the stabilized numbers become meaningless and the *as
yet to be stabilized* numbers can be used to make something just under a
wild guess.
So, if you run it up to 80 uS the actual silver content is probably more
like 100 PPM as colloid crystals are forming like mad as you make it, but
it will slowly drop back to 30 uS over time as even more colloids form later.
Using a meter on 30 uS CS later, won't tell you if it's 35 PPM or 350 PPM
total silver...you only know it's over 30 PPM.
Ode
At 06:33 PM 7/3/2008 +0100, you wrote:
What does this mean Ode? What exactly is uS and why doesn't the amount of
silver in the water change? Many thanks. Dee
-------Original Message-------
From: <mailto:[email protected]>Ode Coyote
Date: 07/03/08 14:18:09
To: <mailto:[email protected]>[email protected]
Subject: Re: CS>CS ppm
More accurately without mixing terms:
>Just to report that this batch of CS tested out at 18 uS when it was first
>made, and 12uS two days later when uS = PPM.
The amount of silver in the water didn't change.
Ode
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