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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
The method of editing tidal tables and tidal stream charts for ship
Standard published on 4.6.1992
Selected format:Thermal insulation - Determination of steady-state thermal transmission Properties - Calibrated and guard hot box
Standard published on 30.6.2008
Selected format:Pretensioned spun concrete piles
Standard published on 6.8.2023
Selected format:Test method for building sealants Part 1:Specifications for test substrates
Standard published on 17.12.2002
Selected format:Test method for building sealants—Part 10:Determination of tensile properties at manitained extension
Standard published on 31.5.2017
Selected format:Test method for building sealants—Part 11Determination of tensile properties at maintained extension after immersion in wates
Standard published on 31.5.2017
Selected format:Test method for building sealantsPart 12Determination of adhesion/cohesion properties at constant temperature
Standard published on 28.12.2018
Selected format:Test method for building sealantsPart 13Determination of adhesion/cohesion properties at variable temperatures
Standard published on 4.6.2019
Selected format:Test method for building sealantsPart 14Determination of resistance to prolonged exposure to water
Standard published on 30.8.2019
Selected format:Test method for building sealants—Part 15Determination of adhesion/cohesion properties after exposure to heat and artificial light through glass and to water
Standard published on 31.5.2017
Selected format:Latest update: 2026-04-02 (Number of items: 2 270 295)
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