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Standards GB - Chinese national standards - Page 7663
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 4749-1993
WITHDRAWN
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Petroleum equipment. Thread gages for rotary shouldered connections
WITHDRAWN published on 15.10.1993
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GB/T 4749-2003
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Petroleum equipment—Thread gages for rotary shouldered connections
WITHDRAWN published on 16.6.2003
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GB 475-1996
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Sampling for commercial coal
WITHDRAWN published on 14.6.1996
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GB/T 4750-1984
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The collection of designs for household hydraulic biogas digesters in rural areas
WITHDRAWN published on 10.11.1984
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GB/T 4750-2002
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Collection of standard design drawings for household anerobie digesters
WITHDRAWN published on 2.7.2002
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GB/T 4751-1984
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The standard for check and acceptance of the quality for household hydraulic biogas digesters in rural areas
WITHDRAWN published on 10.11.1984
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GB/T 4751-2002
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Specificafion for check and acceptance of the quality for household anerobie digesters
WITHDRAWN published on 2.7.2002
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GB 4752-1984
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WITHDRAWN published on 1.1.1984
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GB/T 4752-1984
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The operation rules for construction of household hydraulic biogas digesters in rural areas
WITHDRAWN published on 10.11.1984
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GB/T 4752-2002
WITHDRAWN
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Operation rules for construction of household anerobie digesters
WITHDRAWN published on 2.7.2002
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