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Standards GB - Chinese national standards - Page 7874
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 4750-1984
WITHDRAWN
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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WITHDRAWN published on 10.11.1984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WITHDRAWN published on 2.7.2002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WITHDRAWN published on 10.11.1984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WITHDRAWN published on 2.7.2002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WITHDRAWN published on 1.1.1984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WITHDRAWN published on 10.11.1984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
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Operation rules for construction of household anerobie digesters
WITHDRAWN published on 2.7.2002
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GB 4753-1984
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Technical requirements for permanent magnetic (magnetically hard) alloy of cast aluminium-nickel-cobalt
WITHDRAWN published on 1.1.1984
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GB 4754-1984
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Industrial classification and codes for national economic activities
WITHDRAWN published on 1.1.1984
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GB/T 4754-1994
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Industrial classification and codes for national economic activities
WITHDRAWN published on 1.1.1994
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