Hi Greg, you can tell something about what you have if you shine a laser pen through it. If it has colloidal particles the light beam should show up. It can be faint, so doing it in a dark area can be helpful.

On Aug 3, 2008, at 9:24 AM, Greg Bean wrote:

Hi,

  I am wondering how I could test the bacteria and virus killing
 effectiveness of the CS that I have. Any suggestions would be greatly
 appreciated.

  Thanks,
 
Greg




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