ASTM International - ASTM E2281-03e1
Standard Practice for Process and Measurement Capability Indices
|Publication Date:||10 June 2003|
|ICS Code (Industrial process measurement and control):||25.040.40|
1.1 This practice provides guidance for the use of capability indices for evaluating process capability and performance. Process capability indices compare the variability of a process quality measure against product specifications or tolerances and assume the process is in a state of statistical control. Process performance indices are useful in situations when the process is not in a state of statistical control.