Hi Erika; CS works well on people also. As far as testing goes the more expensive Hanna meter is reportedly the best. However there is one problem with any type of conductvity measuring device and that what the Hanna meters are ever though the put fancy names on them. The conductivity of CS changes with time, what might measure 50 uS at the end of a run will measure maybe 45 uS twelve hours later and 40 uS twenty four hours later even though the true ppm has not changed.
So some serious record keeping would be required, and after the CS has stablized then have a ppm check made with a spectrophotometer. I make CS with constant voltage, constant current, and HVAC ARc and they ALL change. "Ole Bob" -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit silver-list or silver-digest send an e-mail message to: [email protected] -or- [email protected] with the word subscribe or unsubscribe in the SUBJECT line. To post, address your message to: [email protected] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>

