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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
Code for field measurement of vibrations and pulsation in hydraulic machines (turbines, storage pumps and pump-turbines)
Standard published on 29.12.2017
Selected format:Piezoelectric ceramic filters for use in electronic equipment A specification in the quality assessment system for electronic components—Part 1:Generic specification—Qualification approval
Standard published on 26.12.1997
Selected format:Information technology--Coding of moving pictures and associatedaudio for digital storage media at up to about 1.5Mbit/s--Part 1:Systems
Standard published on 26.12.1997
Selected format:Information technology--Coding of moving pictures and associatedaudio for digital storage media at up to about 1.5Mbit/s--Part 2:Video
Standard published on 26.12.1997
Selected format:Information technology--Coding of moving pictures and associatedaudio for digital storage media at up to about 1.5Mbit/s--Part 3:Audio
Standard published on 26.12.1997
Selected format:Information technology--Coding of moving pictures and associated audio for digital storage media at up to about 1.5 Mbit/s--Part 4:Compliance testing
Standard published on 3.1.2000
Selected format:Information technology--Computer graphics--Interfacing techniques for dialogues with graphical devices(CGI)--Functional specification--Part1:Overviewprofileand conformance
Standard published on 26.12.1997
Selected format:Information technology--Computer graphics--Interfacing techniques for dialogues with graphical devices(CGI)--Functional specification--Part 2:Control
Standard published on 26.12.1997
Selected format:Information technology--Computer graphics--Interfacing techniques for dialogues with graphical devices(CGI)--Functional specification--Part 3:Output
Standard published on 26.12.1997
Selected format:Information technology--Computer graphics--Interfacing techniques for dialogues with graphical devices(CGI)--Functional specification--Part 4:Segment
Standard published on 5.11.1998
Selected format:Latest update: 2026-08-28 (Number of items: 2 298 625)
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