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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
Specifications for printing of maps
Standard published on 20.6.2008
Selected format:Pneumatic fluid power—Determination of flow-rate characteristics of components using compressible fluids—Part 1: General rules and test methods for steady-state flow
Standard published on 29.12.2017
Selected format:Pneumatic fluid power—Determination of flow-rate characteristics of components using compressible fluids—Part 2: Alternative test methods
Standard published on 18.10.2019
Selected format:Pneumatic fluid power—Determination of flow-rate characteristics of components using compressible fluids—Part 3:Method for calculating steady-state flow-rate characteristics of systems
Standard published on 2.6.2020
Selected format:Test methods of pneumatic fluid power fittings
Standard published on 18.9.2013
Selected format:Sectional specification for single and double sided flexible printed board
Standard published on 25.3.2019
Selected format:Determination of the pH of adhesives
Standard published on 15.6.1993
Selected format:Test method for flatwise tension strength of sandwich constructions
Standard published on 15.3.2018
Selected format:Determination of the residual styrene monomer content as well as the content of other volatile aromatic hydrocarbons in the unsaturated polyester resin-based reinforced plastics—Gas chromatography
Standard published on 29.8.2025
Selected format:Terms of continuous handling equipment
Standard published on 10.12.2015
Selected format:Latest update: 2026-04-15 (Number of items: 2 272 661)
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