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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Safety rules for the construction and installation of escalators and moving walks
Standard published on 29.7.2011
Selected format:Medical electrical system—Guidelines for safe integration and operation of adaptive external-beam radiotherapy systems
Standard published on 31.3.2026
Selected format:Rubber,vulcanized or thermoplastic - Determination of the effect of liquids
Standard published on 14.1.2011
Selected format:Rules for the presentation of graphical symbols - General principles
Standard published on 16.7.2008
Selected format:Rules for the presentation of graphical symbols—Part 2: Methods for testing comprehensibility
Standard published on 31.3.2020
Selected format:Rules for the presentation of graphical symbols—Part 4: Methods for testing symbol referent association
Standard published on 31.3.2020
Selected format:Rules for the presentation of graphical symbols for use in technical product documentationPart 1: Basic rules
Standard published on 16.7.2008
Selected format:Rules for design of graphical symbols for use in the technical documentationPart 2: Specification for graphical symbols in a computer sensible form, including graphical symbols for a reference libraryand requirements for their interchange
Standard published on 17.12.2013
Selected format:Rules for the presentation of graphical symbols - Graphical symbols for use in the technical documentation of products - Part 3: Classification of connect notes, networks and their encoding
Standard published on 13.3.2009
Selected format:Rules for the presentation of graphical symbols for use on equipment—Part 1: Design principles for symbol originals
Standard published on 31.7.2017
Selected format:Latest update: 2026-08-26 (Number of items: 2 298 418)
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