品质协会 发表于 2017-8-4 20:03:44

西格玛水平(σ), 合格率(%)和DPMO(百万机会缺陷数ppm)的对照表


西格玛水平(σ)合格率(%)DPMO(ppm)
06.68933200
0.1258.455915450
0.2510.56894400
0.37513.03869700
0.515.87841300
0.62519.08809200
0.7522.66773400
0.87526.595734050
130.85691500
1.12534.435645650
1.2540.13598700
1.37545.025549750
1.550500000
1.62554.975450250
1.7559.87401300
1.87564.565354350
269.15308500
2.12573.405265950
2.2577.34226600
2.37580.92190800
2.584.13158700
2.62586.97130300
2.7589.44105600
2.87591.54584550
393.3266800
3.12594.7952100
3.2595.9940100
3.37596.9630400
3.597.7322700
3.62598.3216800
3.7598.7812200
3.87599.128800
499.386200
4.12599.5654350
4.2599.73000
4.37599.7952050
4.599.871300
4.62599.91900
4.7599.94600
4.87599.96400
599.977230
5.12599.982180
5.2599.987130
5.37599.99280
5.599.99730
5.62599.9976723.35
5.7599.9983316.7
5.87599.99910
699.999663.4


CPK与不良率(PPM)对照表, DPMO(PPM)和西格玛换算公式表格
http://www.pinzhi.org/forum.php?mod=viewthread&tid=400

szz976 发表于 2017-9-26 14:08:53

:lol

szz976 发表于 2017-9-26 14:12:55

:Q

jokeryi 发表于 2017-9-28 11:52:43

:)

lm735746330 发表于 2017-9-28 13:06:16

:Q

pennylin 发表于 2017-9-29 22:38:35

:)

lurenjia2011050 发表于 2018-1-27 11:42:26

感谢分享

争做八分青 发表于 2018-4-16 09:41:00

:)

junku9 发表于 2018-4-16 09:46:09

:):):)

xiaokanhongchen 发表于 2018-4-17 11:50:29

谢谢
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