ASTM E2281-08a
Historical Standard: ASTM E2281-08a Standard Practice for Process and Measurement Capability Indices
SUPERSEDED (see Active link, below)
ASTM E2281
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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
E456 Terminology Relating to Quality and Statistics
E2586 Practice for Calculating and Using Basic Statistics
ISO Standard
ISO3534-2 Statistics--Vocabulary and Symbols-Statistical Quality Control Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.Keywords
long-term variability; process capability; process capability indices; process performance; process performance indices; short-term variability;
ICS Code
ICS Number Code 25.040.40 (Industrial process measurement and control)
DOI: 10.1520/E2281-08A
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