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ppm
ppb
Percentage
0.001
1
0.0000001
0.01
10
0.000001
0.1
100
0.00001
1,000
0.0001
10,000
Other useful conversions: 1 mg/kg = 1 ppm; 1 g/ton = 1.1 ppm; 100 g/ton = 110 ppm
