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Below is a conversion chart showing how a CPK value as it relates to
PPM (Defective Parts per Million).
|
Cpk |
Sigma |
ppm |
|
0.43 |
- |
193,600 |
|
0.47 |
- |
161,510 |
|
0.50 |
1.50 |
133,610 |
|
0.53 |
- |
109,600 |
|
0.57 |
- |
89,130 |
|
0.60 |
- |
71,960 |
|
0.63 |
- |
57,430 |
|
0.67 |
- |
45,500 |
|
0.70 |
- |
35,730 |
|
0.73 |
- |
27,810 |
|
0.77 |
- |
21,450 |
|
0.80 |
- |
16,400 |
|
0.83 |
- |
12,420 |
|
0.87 |
- |
9,322 |
|
0.90 |
- |
6,934 |
|
0.93 |
- |
5,110 |
|
0.97 |
- |
3,732 |
|
1.00 |
3.00 |
2,700 |
|
1.03 |
- |
1,935 |
|
1.07 |
- |
1.374 |
|
1.10 |
- |
967 |
|
1.13 |
- |
674 |
|
1.16 |
~3.50 |
465 |
|
1.20 |
- |
318 |
|
1.23 |
- |
216 |
|
1.27 |
- |
145 |
|
1.30 |
- |
98 |
|
1.33 |
4.00 |
64 |
|
1.37 |
- |
41 |
|
1.40 |
- |
27 |
|
1.43 |
- |
17 |
|
1.47 |
- |
11 |
|
1.50 |
4.50 |
7 |
|
1.53 |
- |
4 |
|
1.57 |
- |
3 |
|
1.60 |
~5.00 |
0.5 |
|
2.00 |
6.00 |
0.00198 |
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