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Standards GB - Chinese national standards - Page 5606
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 12332-1990
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Metallic coatings Electroplated coatings of nickel for engineering purposes
WITHDRAWN published on 27.4.1990
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GB/T 12334-1990
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Metallic and other inorganic coatings--Definitions and conventions concerning the measurement of thickness
WITHDRAWN published on 1.1.1990
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GB/T 12335-1990
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Metallic coatings--Coatings anodic to the substrate--Rating of test specimens subjected to corrosion tests
WITHDRAWN published on 27.4.1990
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GB/T 12336-1990
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Standard practice for applying statistics analysis of corrosion data
WITHDRAWN published on 27.4.1990
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GB 12337-1998
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Steel spherical tanks
WITHDRAWN published on 8.12.1998
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GB/T 12338-1990
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Methods of measurement for monochrome universal CCTV camera
WITHDRAWN published on 4.6.1990
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GB/T 12339-1990
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Inner packaging materials in preservation
WITHDRAWN published on 23.4.1990
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GB 1234-1985
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High resistance alloys for electrical heating
WITHDRAWN published on 1.1.1985
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GB/T 1234-1995
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High resistance alloys for electrical heating
WITHDRAWN published on 11.4.1995
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GB 12340-1990
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1:25000, 1:50000 and 1:100000 topographic maps—Specifications for aerophotogrammetric office operation
WITHDRAWN published on 4.6.1990
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