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Control Limits

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Control Limits - definitions

Control Limits - The natural boundaries of a process within specified confidence levels, expressed as the upper control limit (UCL) and the lower control limit (LCL).

[Category=Quality ]

Source: American Society for Quality, 14 September 2010 08:20:58, External

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Control Limits - Control limits define the area three standard deviations on either side of the centerline, or mean, of data plotted on a control chart. Do not confuse control limits with specification limits. Control limits reflect the expected variation in the data. Bi latral specification/tolerances have two limits on both side of the tolerances which is not appreciated in the Unilatral tolerances.

[Category=Data Quality ]

Source: iSixSigma, 10 January 2011 10:17:16, External 

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