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Standards GB - Chinese national standards - Page 6508
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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GB/T 17127.3-1998
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Agricultural wheeled tractors and implements--Three-point hitch couplers--Part 3:Link coupler
WITHDRAWN published on 10.8.1998
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GB/T 17128.1-1997
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Special postal envelope—Envelope of domestic express mail
WITHDRAWN published on 2.12.1997
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GB/T 17129-1997
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Colourless optical glass test methods of chemical stability—Powder
WITHDRAWN published on 3.12.1997
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GB/T 1713-1989
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Determination of density of pigments—pyknometer method
WITHDRAWN published on 31.3.1989
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GB/T 17130-1997
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Water quality--Determination of volatile halogenated organic compounds--Headspace gas chromatography
WITHDRAWN published on 8.12.1997
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GB/T 17131-1997
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Water quality--Determination of 12-dichlorobenzene14-dichlorobenzene124-trichlorobenzene--Gas chromatography
WITHDRAWN published on 8.12.1997
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GB/T 17133-1997
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Water quality--Determination ofsulfide--Direct development of the spectrophotometry
WITHDRAWN published on 8.12.1997
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GB/T 17137-1997
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Soil quality--Determination of total chromium--Flame atomic absorption spectrophotometry
WITHDRAWN published on 8.12.1997
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GB/T 17138-1997
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Soil quality--Determination of copperzinc--Flame atomic absorption spectrophotometry
WITHDRAWN published on 8.12.1997
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GB/T 17139-1997
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Soil quality--Determinationof nickel--Flame atomic absorption spectrophotometry
WITHDRAWN published on 8.12.1997
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