1. 
   Nephelometric
   Method of of measuring turbidity in a water sample by passing light through the sample and measuring the amount of the light that is deflected.
   Found op http://www.epa.gov/OCEPAterms/
   
   
2. 
   nephelometric
   nephelometry, nephelometric The estimation of the concentration of particles in a suspension by means of a nephelometer.
   Found op http://www.wordinfo.info/words/index/info/view_unit/1302/26
   
   

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