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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
Paking containers—Caustic alkali steel drum
WITHDRAWN published on 20.12.1995
Selected format:Surface active agents—Determination of chelating agent content—Titrimetric method
WITHDRAWN published on 20.12.1995
Selected format:Dysprosium and dysprosium oxide—Determination of gadolinium oxide, terbium oxide, holmium oxide, erbium oxide and yttrium oxide contents—Emission spectrographic method
WITHDRAWN published on 20.12.1995
Selected format:Dysprosium and dysprosium oxide—Determination of copper, molybdenum, nickel and titanium contents—Inductively coupled plasma atomic emission spectrographic method
WITHDRAWN published on 20.12.1995
Selected format:Dysprosium and dysprosium oxide—Determination of tantalum content—Para-chloride—phenylfluorone-cetyl trimethyl ammonium bromide-ethanol spectrophotometric method
WITHDRAWN published on 20.12.1995
Selected format:Dysprosium and dysprosium oxide--Determination of oxygen content--Impulse-infrared absorption method
WITHDRAWN published on 1.1.1995
Selected format:Oceanography general terminology
WITHDRAWN published on 20.12.1995
Selected format:Oceanographic terminology—Marine biology
WITHDRAWN published on 20.12.1995
Selected format:Power take-off for agricultural tractors
WITHDRAWN published on 18.9.1986
Selected format:Agricultural tractors—Rear-mounted power take-off—Types 1,2 and 3
WITHDRAWN published on 11.3.2003
Selected format:Latest update: 2026-03-30 (Number of items: 2 269 988)
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