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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
Determination of carbon dioxide content in the mineral carbonates associated with coal
WITHDRAWN published on 19.12.1996
Selected format:(The parts and units of jigs and fixtures. Turn the wide head plate)
WITHDRAWN published on 1.1.1991
Selected format:Chemicals--Fish,prolonged toxicity:14-day study test
WITHDRAWN published on 12.5.2008
Selected format:(The parts and units of jigs and fixtures. Eccentric platen)
WITHDRAWN published on 1.1.1991
Selected format:Testing of chemicals - Inherent biodegradability - Modified MITI test II
WITHDRAWN published on 12.5.2008
Selected format:(The parts and units of jigs and fixtures. Eccentric with a wide head plate)
WITHDRAWN published on 1.1.1991
Selected format:(The parts and units of jigs and fixtures. Platen)
WITHDRAWN published on 1.1.1991
Selected format:Austenitic-Ferritic (duplex) grade stainless steel welded tubes and pipes
WITHDRAWN published on 13.5.2008
Selected format:Austenitic-Ferritic (duplex) grade stainless steel seamless tubes and pipes
WITHDRAWN published on 13.5.2008
Selected format:Dimensions and masses per unit length of welded steel pipes
WITHDRAWN published on 13.5.2008
Selected format:Latest update: 2026-01-14 (Number of items: 2 254 595)
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