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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
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WITHDRAWN published on 1.1.1989
Selected format:Bead fit test method for tube aircraft tyre
WITHDRAWN published on 19.10.1998
Selected format:Section diagnose and measure method for aircraft tyre
WITHDRAWN published on 31.3.1989
Selected format:Section analyze and measure method for aircraft tyres
WITHDRAWN published on 15.3.2004
Selected format:Standard for marine radio communication vocabulary
WITHDRAWN published on 8.5.1989
Selected format:Sulphuric acid for industrial use--Determination of sulphuric acid content and calculation of free sulphur trioxide content of oleum--Titrimetric method
WITHDRAWN published on 11.3.1989
Selected format:Sulphuric acid for industrial use--Determination of mercury content--Flameless atomic absorption spectremetric method
WITHDRAWN published on 11.3.1989
Selected format:Sulphuric acid for industrial--Determination of oxides of nitrogen--24-Xylenol spectrophotometric method
WITHDRAWN published on 11.3.1989
Selected format:Sulphuric acid for industrial use--Determination of sulphur dioxide content--Iodometric method
WITHDRAWN published on 11.3.1989
Selected format:Sulphuric acid for industrial use--Determination of chlorine content--Potentiometric method
WITHDRAWN published on 11.3.1989
Selected format:Latest update: 2026-01-26 (Number of items: 2 257 479)
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