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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
Methods of measurement of the magnetic properties of electrical steel sheet and strip by means of an Epstein frame
WITHDRAWN published on 10.10.2008
Selected format:General technical requirements for electrochemical energy storage system in power system
WITHDRAWN published on 13.7.2018
Selected format:Measurement methods of magnetic properties of electrical iron
WITHDRAWN published on 2.5.1983
Selected format:Method of coercivity measurement for magnetically soft materials by pull out procedure
WITHDRAWN published on 10.10.2008
Selected format:Measurement method of direct magnetic properties of soft magnetic alloys
WITHDRAWN published on 2.5.1983
Selected format:Soft magnetic alloys—Measuring method for alternative magnetic properties
WITHDRAWN published on 21.7.1990
Selected format:Methods of measurement of a.c.magnetic properties of magnetically soft materials
WITHDRAWN published on 10.10.2008
Selected format:Unified weighting network for measuring video continuous random noise
WITHDRAWN published on 5.5.1983
Selected format:National central product classification-Product category core metadata-Part 1:Description rules
WITHDRAWN published on 17.9.2018
Selected format:National central product classification-Product category core metadata-Part 10:Sensors
WITHDRAWN published on 17.9.2018
Selected format:Latest update: 2025-12-18 (Number of items: 2 252 678)
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