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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
Samarium metal
WITHDRAWN published on 31.3.2008
Selected format:-
WITHDRAWN published on 1.1.1982
Selected format:Samarium oxide
WITHDRAWN published on 9.5.1994
Selected format:Samarium oxide
WITHDRAWN published on 31.3.2008
Selected format:Determination of Avermectin residues in milk by High Performance Liquid Chromatographic method
WITHDRAWN published on 16.9.2013
Selected format:Rolling bearings--Tapered roller bearings--Boundary dimensions
WITHDRAWN published on 1.1.1984
Selected format:Rolling bearings—Tapered roller bearings—Boundary dimensions
WITHDRAWN published on 27.12.1994
Selected format:Thicker steel plate—Method for ultrasonic inspection
WITHDRAWN published on 6.11.1991
Selected format:Thicker steel plates—Method for ultrasonic inspection
WITHDRAWN published on 9.5.2004
Selected format:Method of fracture test for carbon and low alloy steels
WITHDRAWN published on 25.3.1982
Selected format:Latest update: 2026-03-16 (Number of items: 2 266 785)
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