Percent Concentration and Trace Level Table
1,000,000 ppm 100%
100,000 ppm 10%
10,000 ppm 1%
1,000 ppm 0.1%
100 ppm 0.01%
10 ppm 0.001%
1 ppm 0.0001%
1,000 ppb 1 ppm
100 ppb 0.1 ppm
10 ppb 0.01 ppm
1 ppb 0.001 ppm
1,000 ppt 0.001 ppm
100 ppt 0.0001 ppm
10 ppt 0.00001 ppm
1 ppt 0.000001 ppm
1,000 ppt 1 ppb
100 ppt 0.1 ppb
10 ppt 0.01 ppb
1 ppt 0.001 ppb