GB/T 40742.4-2021
ActiveGeometrical product specifications (GPS)—Geometrical precision verification—Part 4：Evaluation of dimension and geometrical error，discriminant pattern of minimum zone
产品几何技术规范（GPS） 几何精度的检测与验证 第4部分：尺寸和几何误差评定、最小区域的判别模式
Application Summary AI generated
This standard specifies the discriminant patterns for evaluating dimension and geometrical errors using the minimum zone method, providing a unified approach for determining whether measured features conform to specified tolerances. It is applied in precision metrology and quality control across manufacturing industries, particularly for verifying the geometrical accuracy of mechanical components and assemblies during inspection and acceptance testing.
Related Standards
GB/T 14495-2009
Geometrical Product Specifications (GPS)- Surface texture: Profile method Roughness comparison specimens for wooden pieces
GB/T 3934-2003
Specification of gauges for general purpose screw threads
GB/T 6091-2004
Knife straight edge
GB/T 8122-2004
Dial bore gauges
GB/T 8124-2004
Tolerances and general features of gauges for metric trapezoidal screw threads
GB/T 9056-2004
Metal ruler
GB/T 9058-2004
Micrometer with prismatically arranged measuring faces
GB/T 6313-2004
Pointed-contact micrometer with conical tips
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.