GB/T 40742.3-2021
Geometrical product specifications (GPS)—Geometrical precision verification—Part 3：Functional gauges and fixtures—Verification when applying maximum material requirements and minimum material requirements (English Version)

Scope: This document specifies general requirements for the testing and verification process applying maximum and minimum physical requirements and general requirements for the design of fixtures for testing. This document is applicable to the inspection and verification of the elements under test and/or datum elements when the maximum physical requirements and minimum physical requirements are applied using functional gauges and fixtures.

GB/T 40742.3-2021 Referenced Document

GB/T 1182 Geometrical product specifications(GPS)—Geometrical tolerancing—Tolerances of form, orientation, location and run-out
GB/T 16671 Geometrical product specifications (GPS)—Geometrical tolerancing—Maximum material requirement (MMR), least material requirement (LMR) and reciprocity requirement (RPR)
GB/T 17851 Geometrical product specifications (GPS)—Geometrical tolerancing—Datums and datum systems*， 2022-12-30 Update
GB/T 24637.1 Geometrical product specifications (GPS)—General concepts—Part 1: Model for geometrical specification and verification
GB/T 24637.2 Geometrical product specifications (GPS)—General concepts—Part 2: Basic tenets, specifications, operators, uncertainties and ambiguities
GB/T 38762.1 Geometrical product specifications (GPS)—Dimensional tolerancing—Part 1: Linear sizes

2021 GB/T 40742.3-2021 Geometrical product specifications (GPS)—Geometrical precision verification—Part 3：Functional gauges and fixtures—Verification when applying maximum material requirements and minimum material requirements