西格玛水平(σ )合格率(%)DPMO(ppm)06.689332000.125 8.455 9154500.2510.56 8944000.375 13.03 8697000.515.87 8413000.625 19.08 8092000.7522.66 7734000.87526.595734050130.85 6915001.12534.4356456501.2540.13 5987001.37545.0255497501.5505000001.62554.9754502501.7559.87 4013001.87564.565354350269.15 3085002.12573.4052659502.2577.34 2266002.375 80.92 1908002.584.13 1587002.625 86.97 1303002.7589.44 1056002.87591.545 84550393.32668003.125 94.79521003.2595.99401003.375 96.96304003.597.73227003.625 98.32168003.7598.78122003.875 99.128800499.3862004.12599.56543504.2599.730004.37599.79520504.599.8713004.625 99.919004.7599.946004.875 99.96400599.9772305.12599.9821805.25 99.9871305.37599.992805.599.997305.62599.9976723.355.7599.9983316.75.87599.99910699.99966 3.4100000200000300000400000500000600000700000800000900000100000001000002000003000004000005000006000007000008000009000001000000012969798991000095963.23.33.43.53.6020406080100120234567DPMO(ppm)合格率(%)012343.73.83.944.14.24.34.44.5m )567