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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
Agricultural irrigation equipment—Graphical symbols for pressurized irrigation systems
WITHDRAWN published on 30.11.2009
Selected format:Small-size gasoline engine direct-link high speed centrifugal pumps
WITHDRAWN published on 30.11.2009
Selected format:Waste submersible motor-pumps
WITHDRAWN published on 30.11.2009
Selected format:Conservation tillage equipment—Shallow cultivator
WITHDRAWN published on 30.11.2009
Selected format:Conservation tillage equipment—Subsoiler
WITHDRAWN published on 30.11.2009
Selected format:Conservation tillage equipment—Disc harrow
WITHDRAWN published on 30.11.2009
Selected format:Conservation tillage equipment—Smashed root stubble machine
WITHDRAWN published on 30.11.2009
Selected format:Conservation tillage equipment—Smashed straw machine
WITHDRAWN published on 30.11.2009
Selected format:Vibratory subsoiling excavator
WITHDRAWN published on 30.11.2009
Selected format:Equipment for crop protection—Knapsack sprayers—Part 1:Requirements and test methods
WITHDRAWN published on 30.11.2009
Selected format:Latest update: 2026-04-26 (Number of items: 2 274 794)
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