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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
Methods for analysis of uranium ore concentrate—Part 9Determination of silicon—Spectrophotometric method
Execute Date: may 2026
Standard published on 5.10.2025
Selected format:Heavy water tank
Standard published on 19.6.2008
Selected format:Surface imperfections of optical elements
Standard published on 13.12.2006
Selected format:Tolerances and specification of taper gauges
Standard published on 10.11.2003
Selected format:Gauges of Morse tapers and metric tapers
Standard published on 10.11.2003
Selected format:Gauges of 7:24 tapers—Inspection
Standard published on 13.10.2016
Selected format:Gauges of drill chuck tapers
Standard published on 10.11.2003
Selected format:Quality requirements for spirits—Part 1: Whisky
Standard published on 24.1.2025
Selected format:Quality requirements for spirits—Part 2: Brandy
Standard published on 28.12.2023
Selected format:
Quality requirements for spirits—Part 3: Vodka
Execute Date: july 2026
Standard published on 2.12.2025
Selected format:Latest update: 2026-03-20 (Number of items: 2 268 518)
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