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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
Reciprocating internal combustion engines—Evaluation method of vibration
Standard published on 7.9.2023
Selected format:Hydraulic steering gear of inland vessel
Standard published on 31.3.2009
Selected format:Terms relating to coal preparation
Standard published on 27.11.2023
Selected format:Fuel oil consumption for transportation ships—Part 1: Calculation method for marine ships
Standard published on 20.8.2021
Selected format:Fuel oil consumption for transportation ships - Part 2: Calculation methed for inland ships
Standard published on 14.1.2011
Selected format:
Fuel oil consumption for transportation ships—Part 2: Calculation method for inland vessels
Execute Date: november 2026
Standard published on 30.4.2026
Selected format:Office machines and data processing equipment--Keyboard layouts for numeric applications
Standard published on 19.1.1987
Selected format:Mechanical draft cooling towers—Part 1Medium and small open cooling towers
Standard published on 28.12.2018
Selected format:Mechanical draft cooling towers—Part 2Large open cooling towers
Standard published on 28.12.2018
Selected format:Mechanical draft cooling towers—Part 3Closed circuit cooling towers
Standard published on 30.8.2019
Selected format:Latest update: 2026-06-11 (Number of items: 2 281 927)
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