GB/T 34881-2017 in English

This standard provides guidance on the evaluation of measurement uncertainty for coordinate measuring machines within the framework of product geometric technical specifications. It outlines procedures and methods for assessing the uncertainty associated with measurements conducted using such equipment. The document addresses key aspects related to the measurement process, including the identification of sources of uncertainty, the establishment of measurement models, and the calculation of combined standard uncertainty. It also includes recommendations for reporting and interpreting the results of uncertainty evaluations. The guidance is intended to support consistent and reliable measurement practices across various industries. The standard establishes a structured approach to uncertainty analysis, ensuring that measurement results are traceable and comparable. It serves as a reference for metrologists, engineers, and technicians involved in dimensional measurements.