ISO 14253 is a Geometrical Product Specifications (GPS) standard and is to be regarded as a global GPS standard. It also gives rules on how to deal with cases where a clear decision about a measurement cannot be taken, i.e. when the measurement result falls within the uncertainty range that exists around the specification limits.
The standard 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, considering the measurement uncertainty.
