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Standards GB - Chinese national standards - Page 7885
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 4985-1985
WITHDRAWN
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Determination of needle penetration of petroleum waxes
WITHDRAWN published on 1.1.1985
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GB/T 4985-1998
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Determination of needle penetration of petroleum waxes
WITHDRAWN published on 17.6.1998
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GB/T 4985-2010
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Standard test method for needle penetration of petroleum waxes
WITHDRAWN published on 2.9.2010
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GB 4986-1985
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Cast iron surface plates
WITHDRAWN published on 1.1.1985
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GB 4987-1985
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Granite surface plates
WITHDRAWN published on 1.1.1985
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GB/T 4988-1985
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Ratings of frequency,voltage and current of electric products for ships and offshore units
WITHDRAWN published on 7.3.1985
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GB/T 4988-2002
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Ratings of frequency,voltage and current of electric products for ships and offshore units
WITHDRAWN published on 8.10.2002
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GB 4989-1985
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Extension and compensating cables for thermocouples
WITHDRAWN published on 1.1.1985
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GB/T 4989-1994
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Extension and compensating cables for thermocouples
WITHDRAWN published on 22.12.1994
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GB 4990-1985
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Alloy wires of extension and compensating cables for thermocouples
WITHDRAWN published on 1.1.1985
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