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| Percentage, PPM, and PPB Conversions |
|
ppm
|
ppb
|
Percentage
|
|
0.001
|
1
|
0.0000001
|
|
0.01
|
10
|
0.000001
|
|
0.1
|
100
|
0.00001
|
|
1
|
1,000
|
0.0001
|
|
10
|
|
0.001
|
|
100
|
|
0.01
|
|
1,000
|
|
0.1
|
|
10,000
|
|
1
|
|
Other useful conversions: 1 mg/kg = 1 ppm; 1 g/ton = 1.1 ppm; 100 g/ton = 110 ppm
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Last full review/revision March 2012
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