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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
Measuring methods for agricultural machinery testing conditions—general rules
WITHDRAWN published on 25.7.1985
Selected format:Test methods for guards of power take-off drive shafts for agriculture machinery
WITHDRAWN published on 1.1.1985
Selected format:Tractors and machinery for agriculture and forestry—Guards for power take-off (PTO) drive-shafts—Part 1:Strength test
WITHDRAWN published on 16.3.2000
Selected format:Tractors and machinery for agriculture and forestry—Guards for power take-off (PTO) drive-shafts—Part 2:Wear test
WITHDRAWN published on 16.3.2000
Selected format:-
WITHDRAWN published on 1.1.1985
Selected format:Technical specification of fuel injection pump plunger and barrel assembly for diesel engines
WITHDRAWN published on 25.7.1985
Selected format:Plunger of diesel fuel injection pump—Specifications
WITHDRAWN published on 10.11.2010
Selected format:Measurement of underwater noise
WITHDRAWN published on 26.7.1985
Selected format:Measurement of the longitudinal wave velocity and attenuation for underwater acoustical materials—Pulse-tube method
WITHDRAWN published on 26.7.1985
Selected format:Electroplated coatings on threaded fasteners
WITHDRAWN published on 25.7.1985
Selected format:Latest update: 2026-11-11 (Number of items: 2 209 289)
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