Evening Julius,
>> At 03:49 AM 5/27/2007, you wrote:
Everyone is familiar with the decline in ppm/uS over time but I There is
no discernible reason why there are variations as storage is the same ,
the distilled water comes from the same source & the same machine makes
it. Has anybody found a reason or a way to preclude this ??
You are going on the idea that uS is true ppm.
You have taken water and silver, added them together, and bottled it, put a
lid on it, ......... how do you think it got out?
I have used an EC meter but still depended on calculated ppm.
I have also worked with reasonably expensive EC sensors with an analog output.
The more money you spend, the better the instrument.
Don't bet your life on a low cost EC meter.
After all, ppm is a weight, not a charge. EC meters are not true weight
devices. They are reading ions that tend to change, interactions between
elements, and lots of other things enter into the picture.
When I weigh a specific amount of chemical, add that to a specific amount
of water, I know the ppm. I never look back and never worry about it again.
I would be interested in what point you are trying to understand or to prove?
You are getting into laboratory techniques and without proper instruments,
you are doomed to failure, or confusion, or lost sleep, or plain old worry.
Wayne
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