GB/T 41858-2022

This standard defines a methodology for specifying and verifying geometrical requirements on batches of manufactured parts, moving beyond individual part tolerances to statistical population control. It is applied in manufacturing quality assurance, particularly in high-volume production environments like automotive or aerospace, where it enables efficient acceptance sampling and process capability assessment. The standard provides a framework for setting batch-level specifications and evaluating conformance using statistical methods, reducing inspection costs while ensuring overall product quality.