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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
Test methods of ceramic tiles—Part 12:Determination of frost resistance
WITHDRAWN published on 1.11.1999
Selected format:Test methods of ceramic tiles—Part 12:Determination of frost resistance
WITHDRAWN published on 7.2.2006
Selected format:Test methods of ceramic tiles—Part 13:Determination of chemical resistance
WITHDRAWN published on 1.11.1999
Selected format:Test methods of ceramic tiles—Part 13:Determination of chemical resistance
WITHDRAWN published on 7.2.2006
Selected format:Test methods of ceramic tiles—Part 14:Determination of resistance stains
WITHDRAWN published on 1.11.1999
Selected format:Test methods of ceramic tiles—Part 14:Determination of resistance to stains
WITHDRAWN published on 7.2.2006
Selected format:Test methods of ceramic tiles—Part 15:Determination of lead and cadmium given off by glazed tiles
WITHDRAWN published on 1.11.1999
Selected format:Test methods of ceramic tiles—Part 15:Determination of lead and cadmium given off by glazed tiles
WITHDRAWN published on 7.2.2006
Selected format:Test methods of ceramic tiles—Part 16:Determination of small color differences
WITHDRAWN published on 1.11.1999
Selected format:Test methods of ceramic tiles—Part 16:Determination of small color differences
WITHDRAWN published on 7.2.2006
Selected format:Latest update: 2025-12-28 (Number of items: 2 253 436)
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