yep. Not so rough for me though- with my com 100, after doing the math over and over with many many quarts of eis, for my process, the uS equals the PPM as per Faraday, when read immediately upon turning off the power.

So, I would say, that for us hairsplitters, when starting out with pure water as measured by an under 1 uS reading, the uS reading is equal to PPM.

Then again, that reading drops over the next day or 2, and I think the ions are playing bumper cars and sticking to each other. Also there are a few oxides/hydroxides continuing passing off electrons to each other in liquid solution. Even so, the total amount of silver has not changed.

Kathryn

On Sep 25, 2009, at 5:30 PM, Alchemysa wrote:

When you are measuring colloidal silver...

If you are using a COM100 in uS/KCl mode you can take the reading 'as is.' If its in ppm/NaCl mode you should at least double what is says on the dial.

If you have a TDS meter then double what it says on the meter. (All TDS meters are fixed in ppm/NaCl mode).

These guidelines only apply if you start with pure water in the first place. If you dont, then any meter is useless for measuring silver.

Even the best meters are only a rough guide anyway. (But much better than nothing.)


David


From: zoe w <[email protected]>
Date: 25 September 2009 3:21:37 AM
To: [email protected]
Subject: Re: CS>How to gauge one's CS solution


OK I also have a TDS-3 meter but could never figure out how to use it. If my reading is 11.1 on the Com-100 does this mean my ppm is 22 ? or is it still 11.1 ?
Inquiring minds would like to know.
zoe