Cheli, I am sorry but there is not inexpensive way to measure PPM. The cheapest instrument is the Hanna single frequency spectrophotometer for $150.00 plus another hundred for chemicals.
DO NOT use color as an indicator for PPM , it is telling you that your CS is forming large particles. "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]>

