GB 9969.1-1998
Replaced
GB/T 39645-2020
Active
National standards
GB/T 39645-2020 Technical drawings—Symbols for geometrical tolerancing proportions and dimensions
GB/T 39645-2020 Technical drawings—Symbols for geometrical tolerancing proportions and dimensions
Basic Information
Standard Code:
GB/T 39645-2020
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Basic standards and general methods
ICS Name:
Technical product documentation
Publish Date:
2020-12-14
Implement Date:
2021-04-01
Pages:
22 pages
Scope
This standard specifies the recommended form and proportions of the symbols used to mark geometric tolerances on product technical drawings and product technical documents, as well as their dimensions.
This standard applies to various drawing methods such as computer-aided design, manual drawing, template drawing, and tracing.
The dimensions of these symbols are based on the font standard height given in GB/T 14691.
Development Information
Referenced Standards
GB/T 1182-2018 Geometrical product specifications(GPS)—Geometrical tolerancing—Tolerances of form,orientation,location and run-out
GB/T 14691-1993 Technical drawings—Lettering
GB/T 14691.4-2005 Technical product documentation—Lettering—Part 4:diacritical and particular marks for the Latin alphabet
GB/T 14691.6-2005 Technical product documentation—Lettering—Part 6:Cyrillic alphabet
Adopt standards
ISO 7083:1983
Related Standards
GB/T 18617.1-2002
Active
GB/T 18617.1-2002 Technical product documentation—Organization and naming of layers for CAD—Part 1:overview and principles
GB/T 19097-2003
Active
GB/T 19097-2003 Technical product documentation—Life cycle model and allocation of documents
GB/T 21085-2007
Replaced
GB/T 21085-2007 Certificate of vehicle
GB 21518-2008
Replaced
GB 21518-2008 Minimum allowable values of energy efficiency and energy efficiency grades for AC contactors
GB/T 9969-2008
Active