Geometrical product specifications (GPS) - Inspection by measurement of workpieces and measuring equipment - Part 1: Decision rules for proving conformity or nonconformity with specifications
|Publication Date:||1 September 2013|
|ICS Code (Linear and angular measurements in general):||17.040.01|
This part of ISO 14253 establishes the rules for determining the conformity or nonconformity with a given tolerance for a characteristic of a workpiece (or a population of workpieces) or limits of maximum permissible errors for a metrological characteristic of a measuring equipment, taking into account the measurement uncertainty.
These rules are different for tolerances to individual workpieces and tolerances to workpiece populations.
It also gives rules on how to deal with cases where a clear decision (conformity or nonconformity with specification) cannot be taken, i.e. when the measurement result falls within the uncertainty range (see 3.23) that exists around the specification limits.
This part of ISO 14253 applies to specifications defined in general GPS standards (see ISO/TR 14638), i.e. standards prepared by ISO/TC 213, including:
- measuring equipment specifications (usually given as maximum permissible errors).
This part of ISO 14253 only applies for characteristics expressed as numerical quantity values.