GB/T 16671-2018 Active National standards

GB/T 16671-2018 Geometrical product specifications(GPS)—Geometrical tolerancing—Maximum material requirement(MMR),least material requirement(LMR)and reciprocity requirement(RPR)

Publish Date: 2018-09-17 Implement Date: 2019-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 16671-2018

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods

ICS Name: Mechanical Engineering Drawing

Publish Date: 2018-09-17

Implement Date: 2019-04-01

Pages: 31 pages

Scope

This standard specifies the terms and definitions of maximum entity requirements, minimum entity requirements, and reversible requirements, as well as basic provisions, drawing representation methods, and application examples. These requirements only apply to dimensional elements.
This standard applies to cases where the dimensions and geometric tolerances of a workpiece are interrelated to meet its specific functions, such as ensuring the assemblyability of parts (maximum entity requirements) and guaranteeing minimum wall thickness (minimum entity requirements). However, maximum entity requirements and minimum entity requirements also apply to other functional requirements.
Given the interrelationship between dimensional and geometric elements, the independent principles defined in GB/T 4249 no longer apply when maximum entity requirements, minimum entity requirements, or reversible requirements are adopted.