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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
Water quality--Determination of pentachlorophenol by safranine-T spectrophotometric method
Standard published on 16.8.1988
Selected format:Seamless steel tubes for drilling
Standard published on 28.12.2023
Selected format:General specification for computer—Part 1: Desktop microcomputer
Standard published on 29.8.2016
Selected format:General specification for computer—Part 2Laptop microcomputer
Standard published on 29.8.2016
Selected format:General specification for computer—Part 3Server
Standard published on 31.5.2017
Selected format:General specification for computers—Part 4: Industrial application microcomputer
Standard published on 31.5.2017
Selected format:Thermal-links—Part 1: Requirements and application guide
Standard published on 23.5.2023
Selected format:Thermal-links—Part 2Particular requirements for organic-temperature-sensing thermal-links
Standard published on 14.5.2018
Selected format:Thermal-links—Part 3Particular requirements for fusible-alloy-temperature-sensing thermal-links
Standard published on 14.5.2018
Selected format:Horological vocabularyPart 1: Technical and scientific definitions
Standard published on 17.12.2013
Selected format:Latest update: 2026-06-14 (Number of items: 2 282 206)
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