Dear Wayne:
>> As I have said, no ppm meter exists in the world today. Just because many people use the EC meter and call the results ppm metes does not a ppm meter exist. Actually there are at least two scientific instruments that directly measure silver concentration. One is a probe similar to a pH probe that specifically measures silver concentration. The other is a photo spectrometer. Neither one is cheap. I have been to Frank Key's lab several times and the device he uses burns the silver sample in a plasma then measures the frequency spectrum emitted and the magnatude in relation to a certified standard. It just so happens that the collidal silver made by my generator shows that uS is a 1 to 1 realation to PPM using the Hanna PWT tester. Other EC meters probably will be different. See the test report at http://meissnerresearch.com/products/silver-generator . Jim Meissner www.MeissnerResearch.com _____ From: Wayne Fugitt [mailto:cwa...@netdoor.com] Sent: Thursday, July 03, 2008 4:37 PM To: silver-list@eskimo.com Subject: CS>CS ppm ( EC and ppm At 12:33 PM 7/3/2008, 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 Dee, You should know that before you start talking ppm. Where could the silver go ? How could it get out ? Just like Ode said. The MicroSiemens can change it appears. Not all salts are conductive, not equally anyway. That is only one reason why microseimens is not ppm. ======== Conductivity is a measurement of the ability of a solution to conduct an electric current. An instrument measures conductivity by placing two plates of conductive material with know area and distance apart in a sample. Then a voltage potential is applied and the resulting current is measured. =========== For many years the unit of conductivity was the mho, the mili mho, and the micro mho. Mho is a goofy word, the unit of resistance, ( ohm ) spelled backwards. How about that ? Don't worry so much and realize you are guessing and using approximations. What difference does it make anyway ? As I have said, no ppm meter exists in the world today. Just because many people use the EC meter and call the results ppm metes does not a ppm meter exist. You don't believe me ? The instrument industry makes it crystal clear. They are even trying to combine and make one unit, EC and ppm. While they may do it, rest assured the knowledgeable people will never accept it, not in 100 years. Some very expensive meters will measure only one kind or salt, not two or three. They can come close to ppm, ......... maybe. But I only trust calculated ppm as being very close, as close as one can get by normal means. Wayne ================
