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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
Compressed tea—Part 3:Fuzhuan tea
Standard published on 19.7.2013
Selected format:Compressed tea - Part 4: Kang zhuan tea
Standard published on 19.7.2013
Selected format:Compressed tea—Part 4:Kangzhuan tea
Standard published on 19.7.2013
Selected format:Compressed tea - Part 5: Tuo tea
Standard published on 19.7.2013
Selected format:Compressed tea—Part 5:Tuo tea
Standard published on 19.7.2013
Selected format:Compressed tea - Part 6: Jin tea
Standard published on 19.7.2013
Selected format:Compressed tea—Part 6:Jin tea
Standard published on 19.7.2013
Selected format:Compressed tea - Part 7: Jin jian tea
Standard published on 19.7.2013
Selected format:Compressed tea—Part 7:Jinjian tea
Standard published on 19.7.2013
Selected format:Compressed tea - Part 8: Mi zhuan tea
Standard published on 19.7.2013
Selected format:Latest update: 2026-09-04 (Number of items: 2 300 131)
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