I agree with you Namaste, having used 1.6uS/PPM for years and if we
are wrong, at least we err on the positive side. The one thing I must
question in your testing, is the large decay in PPM you are experiencing!
We employ constant fluid circulation and have just a few % decay!
Some do report a slight rise in PPM which is possible, but I can not
recall the chemistry involved!
If you are running more then 10 minutes without circulation there is risk
you are producing metallic silver, due to the strong ion cloud between
the electrodes - ever made crystals in a saturated solution before?
Try the H2O2 test (10% in Cs) and see if you get any bubbles in 24 hours!
Best to put it in a clean baggy, so you are not testing for plate-out on your
bottle.
[email protected]
NAMASTE Said:
| > Greetings Seekers;
| > Ivan, our numbers are similar (.59 to .57) but I think you may have them
| > backwards. The instructions from Hanna and what my lab results confirmed
| was
| > .59PPM/us. or take the reading in us/cm times .59 to get PPM. In my case
| > 25.5us/cm = 15 PPM. per lab test. Also the us/cm will drop with time for
| the
| > first 10-12 hrs, not rise. This appears to be due to the CS dispersing
| > throughout the DW. Immediately after making a batch the CS is
concentrated
| > around the ion path between the electrodes. A reading taken at this time
| will
| > be high and erratic. After sitting overnite the reading will be lower
but
| > stabile. After this initial dispersion the reading should not change
| futher. I
| > have CS that is now several months old that still reads within 1 us/cm
of
| when
| > it was made. As for accuracy my PWT measures in .1us/cm up to 99.9us/cm.
I
| > calibrate it using a solution from Hanna that measures 84us. It comes in
| small
| > pouches that you tear open and insert the meter. Use once and throw
away.
| > NAMASTE
| > Beldohr
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