ISO/TR 14253-6:2012
Geometrical product specifications (GPS) — Inspection by measurement of workpieces and measuring equipment — Part 6: Generalized decision rules for the acceptance and rejection of instruments and workpieces
ISO/TR 14253-6:2012 expands the scope of decision rules to industrial situations where the default rule of ISO 14253-1 might not be economically optimal. (ISO 14253-1 provides a default decision rule having a very high probability that a measured value resulting in product acceptance also yields a product with the corresponding measurand conforming to specifications.)
ISO/TR 14253-6:2012 does not address how to determine the cost of correct decisions (accepting conforming workpieces or rejecting nonconforming workpieces) or incorrect decisions (rejecting conforming workpieces or accepting nonconforming workpieces) as this is a business concern. However, the terminology and requirements to communicate and implement the particular decision rules desired by an organization are provided along with examples to guide the reader.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General
5 Decision rules
5.1 Guard bands
5.2 Acceptance zones
5.3 Rejection zones
5.4 Transition zones
5.5 Decision rule requirements
6 Examples of decision rules
6.1 General
6.2 Process capability index = 2/3 and measurement capability index = 2
6.3 Process capability index = 1 and measurement capability index = 4
6.4 Measurements without production distributions
Annex A (informative) Relation to the GPS matrix model
Bibliography
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Table tab_a
Figure fig_1
Table tab_b
Figure fig_2
Table tab_c
Figure fig_3
Table tab_d
Figure fig_4
Table tab_1
Table tab_2
Table tab_3
Table tab_4
Table tab_A.1
Reference ref_1
Reference ref_2
Reference ref_3
Reference ref_4
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General
5 Decision rules
5.1 Guard bands
5.2 Acceptance zones
5.3 Rejection zones
5.4 Transition zones
5.5 Decision rule requirements
6 Examples of decision rules
6.1 General
6.2 Process capability index = 2/3 and measurement capability index = 2
6.3 Process capability index = 1 and measurement capability index = 4
6.4 Measurements without production distributions
Annex A (informative) Relation to the GPS matrix model
Bibliography