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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
Standard examination methods for drinking water—Part 7: Aggregate organic indices
Standard published on 17.3.2023
Selected format:Standard examination methods for drinking water—Part 8: Organic indices
Standard published on 17.3.2023
Selected format:Standard examination methods for drinking water—Part 9: Pesticides indices
Standard published on 17.3.2023
Selected format:Chinese classification of coals
Standard published on 1.6.2009
Selected format:Conveyor belts - Marking
Standard published on 9.6.2013
Selected format:Steel cord conveyor beltsMethods for the determination of total thickness and cover thickness
Standard published on 17.12.2013
Selected format:Steel cord conveyor belts—Longitudinal traction test—Part 1: Measurement of elongation
Standard published on 31.12.2015
Selected format:Steel cord conveyor belts—Longitudinal traction test—Part 2: Measurement of tensile strength
Standard published on 29.9.2017
Selected format:Steel cord conveyor belts—Cord-to-coating bond test—Initial test and after thermal treatment
Standard published on 9.3.2021
Selected format:Conveyor belts - Terms and definition
Standard published on 24.4.2009
Selected format:Latest update: 2026-06-25 (Number of items: 2 284 379)
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