parent nodes: Cp Cpk % out of tolerance | PPM (Parts Per Million) | Sigma level | Statistical process control (SPC)


PPM (Parts Per Million)

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ppm is like the procent (%) notation of a concentration. The ppm intended for small values.

Example

1 ppm = formula

1ppm = 0.001%
1%= 10,000ppm

Two sided table
Cpk Sigma level % out of tolerance PPM out of tolerance
0.33 1.0 31.73 317310.508
0.50 1.5 13.36 133614.403
0.67 2.0 4.55 45500.264
0.83 2.5 1.24 12419.331
1.00 3.0 0.27 2699.796
1.17 3.5 0.05 465.258
1.33 4.0 0.01 63.342
1.50 4.5 0.001 6.795
1.67 5.0 0.0001 0.573
1.83 5.5 0.000004 0.038
2.00 6.0 0.0000002 0.002

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