ASTM E2281-03e1 - 10.6.2003
 
1. Scope

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.

 
2. Referenced Documents

E2334-09(2023)

Standard Practice for Setting an Upper Confidence Bound for a Fraction or Number of Non-Conforming items, or a Rate of Occurrence for Non-Conformities, Using Attribute Data, When There is a Zero Response in the Sample

MNL 7

Manual on Presentation of Data and Control Chart Analysis Available from ASTM Headquarters, 100 Barr Harbor Drive, W. Conshohocken, PA 19428.

E456-13a(2022)

Standard Terminology Relating to Quality and Statistics (Includes all amendments and changes 4/21/2022).