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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
Experimental determination of mechanical mobility—Measurements using single-point translation excitation with an attached vibration exciter
WITHDRAWN published on 8.5.1989
Selected format:Vibration and shock - Experimental determination of mechanical mobility - Part 2: Measurements using single-point translation excitation with an attached vibration exciter
WITHDRAWN published on 2.6.2006
Selected format:Experimental determination of mechanical mobility Measurements using impact excitation
WITHDRAWN published on 7.12.1992
Selected format:Shell machine reamers
WITHDRAWN published on 6.12.1973
Selected format:Machining allowances on castings
WITHDRAWN published on 1.1.1989
Selected format:Mass tolerances for castings
WITHDRAWN published on 6.5.1989
Selected format:Carbon steel castings for general engineering purposes
WITHDRAWN published on 6.5.1989
Selected format:Auxiliary tables for vibration generators--Methods of describing equipment characteristics
WITHDRAWN published on 1.1.1989
Selected format:Steel-iron parts—Determination of nitrided case depth and metallographic examination of nitriding structure
WITHDRAWN published on 6.5.1989
Selected format:V-belt drives—Calculation of power ratings
WITHDRAWN published on 12.6.1989
Selected format:Latest update: 2026-01-23 (Number of items: 2 257 393)
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