Hi Terri; Please send me about one ounce of the 500 ppm CS. I will test it free.
The last batch of 500 ppm I tested was 64 ppm with yellow dye of some type. "Ole Bob" System Tech Engineering Robert L. Berger 12303 E. 89th St. Kansas City, MO 64138-5150 -- 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]>

