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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
Electric irons for household or similar use—Methods for measuring performance
WITHDRAWN published on 5.8.2002
Selected format:Methods for measuring performance of electric irons for household or similar use
WITHDRAWN published on 31.7.2008
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WITHDRAWN published on 1.1.1982
Selected format:Analysis of the sulfur trioxide content in phosphorus concentrates and phosphorus minerals
WITHDRAWN published on 1.1.1980
Selected format:Household microwave oven—Methods for measuring performance
WITHDRAWN published on 5.8.2002
Selected format:Household microwave oven—Methods for measuring performance
WITHDRAWN published on 26.6.2008
Selected format:Air cleaner
WITHDRAWN published on 5.8.2002
Selected format:Air cleaner
WITHDRAWN published on 30.12.2008
Selected format:Air cleaner
WITHDRAWN published on 15.9.2015
Selected format:Surge protective devices connected to low-voltage power distribution systems—Part 1:Performance requirements and testing methods
WITHDRAWN published on 5.8.2002
Selected format:Latest update: 2025-12-22 (Number of items: 2 253 013)
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