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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
Paper and paper board--Determination of M. I. T. folding endurance
WITHDRAWN published on 1.1.1981
Selected format:Paper and board—Determination of folding endurance (MIT tester)
WITHDRAWN published on 6.7.1995
Selected format:Corrugated cores--Determination of antiflattening strength
WITHDRAWN published on 1.1.1981
Selected format:Paper board--Determination of piercing strength
WITHDRAWN published on 6.6.1981
Selected format:Paper board--Determination of compression strength
WITHDRAWN published on 1.1.1981
Selected format:Paper and board—Determination of compressive strength—Ring crush method
WITHDRAWN published on 6.7.1995
Selected format:Paper and board—Determination of roughness(Print-surf method)
WITHDRAWN published on 15.2.1993
Selected format:High performance liquid chromatography
WITHDRAWN published on 29.7.2011
Selected format:Indexes for diaphragm gas meters
WITHDRAWN published on 29.7.2011
Selected format:-
WITHDRAWN published on 1.1.1987
Selected format:Latest update: 2026-03-26 (Number of items: 2 269 551)
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