sigma水平、公差范围、CPK与不良率(PPM)对照表

K（σ ） 0.18 0.39 0.48 0.66 0.84 0.99 1.05 1.14 1.2 1.29 1.35 1.44 1.53 1.56 1.59 1.62 1.65 1.68 1.71 1.74 1.77 1.8 1.83 1.86 1.89 1.92 1.95 1.98 2.01 2.04 2.07 2.1 2.13 2.16 2.19 2.22 2.25 2.28 2.31 2.34 2.37 2.4 2.43 2.46 2.49 2.52 2.55 2.58 2.61 2.64
K（σ ） 2.79 2.82 2.85 2.88 2.91 2.94 2.97 3 3.03 3.06 3.09 3.12 3.15 3.18 3.21 3.24 3.27 3.3 3.33 3.36 3.39 3.42 3.45 3.48 3.51 3.54 3.57 3.6 3.63 3.66 3.69 3.72 3.75 3.78 3.81 3.84 3.87 3.9 3.93 3.96 3.99 4.02 4.05 4.08 4.11 4.14 4.17 4.2 4.23 4.26
பைடு நூலகம்
PPM 5270.8 4802.36 4371.92 3976.75 3614.29 3282.12 2978 2699.8 2445.54 2213.37 2001.56 1808.51 1632.7 1472.75 1327.35 1195.3 1075.47 966.85 868.46 779.42 698.93 626.21 560.59 501.41 448.11 400.13 356.98 318.22 283.42 252.22 224.25 199.22 176.83 156.83 138.97 123.03 108.84 96.19 84.95 74.95 66.07 58.2 51.22 45.04 39.57 34.73 30.46 26.69 23.37 20.44
112.4% 111.1% 109.9% 108.7%
2.67 2.7 2.73 2.76
0.89 0.9 0.91 0.92
7585.12 6933.95 6333.43 5780.14
PPM 800000 700000 600000 500000 400000 317310 293800 250000 230200 200000 177000 150000 126016.7 118759.9 111834.8 105232.3 98942.94 92957.32 87265.87 81859.02 76727.14 71860.64 67249.94 62885.53 58757.96 54857.9 51176.12 47703.53 44431.19 41350.33 38452.34 35728.84 33171.61 30772.67 28524.24 26418.77 24448.95 22607.69 20888.15 19283.74 17788.09 16395.07 15098.82 13893.7 12774.31 11735.48 10772.29 9880.03 9054.22 8290.6
CPK 0.06 0.13 0.16 0.22 0.28 0.33 0.35 0.38 0.4 0.43 0.45 0.48 0.51 0.52 0.53 0.54 0.55 0.56 0.57 0.58 0.59 0.6 0.61 0.62 0.63 0.64 0.65 0.66 0.67 0.68 0.69 0.7 0.71 0.72 0.73 0.74 0.75 0.76 0.77 0.78 0.79 0.8 0.81 0.82 0.83 0.84 0.85 0.86 0.87 0.88
CPK 0.93 0.94 0.95 0.96 0.97 0.98 0.99 1 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.1 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.2 1.21 1.22 1.23 1.24 1.25 1.26 1.27 1.28 1.29 1.3 1.31 1.32 1.33 1.34 1.35 1.36 1.37 1.38 1.39 1.4 1.41 1.42
%T 1666.7% 769.2% 625.0% 454.5% 357.1% 303.0% 285.7% 263.2% 250.0% 232.6% 222.2% 208.3% 196.1% 192.3% 188.7% 185.2% 181.8% 178.6% 175.4% 172.4% 169.5% 166.7% 163.9% 161.3% 158.7% 156.3% 153.8% 151.5% 149.3% 147.1% 144.9% 142.9% 140.8% 138.9% 137.0% 135.1% 133.3% 131.6% 129.9% 128.2% 126.6% 125.0% 123.5% 122.0% 120.5% 119.0% 117.6% 116.3% 114.9% 113.6%
%T 107.5% 106.4% 105.3% 104.2% 103.1% 102.0% 101.0% 100.0% 99.0% 98.0% 97.1% 96.2% 95.2% 94.3% 93.5% 92.6% 91.7% 90.9% 90.1% 89.3% 88.5% 87.7% 87.0% 86.2% 85.5% 84.7% 84.0% 83.3% 82.6% 82.0% 81.3% 80.6% 80.0% 79.4% 78.7% 78.1% 77.5% 76.9% 76.3% 75.8% 75.2% 74.6% 74.1% 73.5% 73.0% 72.5% 71.9% 71.4% 70.9% 70.4%