On Sunday, January 19, 1992 at 2:21:00 AM UTC-5, Harel Barzilai wrote:   
   > According to From: John_P_SANTOS@umail.umd.edu (js217),   
   >   
   > the "parts" in "parts per billion" is just mass-ratio, so "parts   
   > per million" is milligrams per kilogram ( = 1 liter of H2O).   
   >   
   > Hence 15 ppb= .015 mg/liter, etc. -- not a difficult conversion...   
   >   
   > Harel   
      
   No, not accurate...... .015 mg/l = .015 ppm, not ppb.   
   but thanks for being patronizing.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)