10ppm is the concentration of silver in the water ie 10 parts silver / 
1,000,000 parts water so it is very little silver on the order of micrograms. 
Somebody on the forum can answer exactly how many micrograms.

Steve


--
The Silver List is a moderated forum for discussing Colloidal Silver.

Instructions for unsubscribing are posted at: http://silverlist.org

To post, address your message to: silver-list@eskimo.com
Silver List archive: http://escribe.com/health/thesilverlist/index.html

Address Off-Topic messages to: silver-off-topic-l...@eskimo.com
OT Archive: http://escribe.com/health/silverofftopiclist/index.html

List maintainer: Mike Devour <mdev...@eskimo.com>