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Standards GB - Chinese national standards - Page 8274
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 5656-1994
WITHDRAWN
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Technical specifications for centrifugal pumps—Class II
WITHDRAWN published on 29.8.1994
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GB 5657-1985
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Technical specifications for single-stage single-suction centrifugal water pumps
WITHDRAWN published on 1.1.1985
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GB/T 5657-1995
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Technical specifications for centrifugal pumps—Class
WITHDRAWN published on 14.7.1995
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GB 5658-1985
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Technical specifications for single-stage double-suction centrifugal pumps
WITHDRAWN published on 1.1.1985
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GB 5659-1985
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Technical specification for multistage centrifugal pumps
WITHDRAWN published on 1.1.1985
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GB 566-1983
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Marine hose clamp for canvas-reinforced rubber hose
WITHDRAWN published on 1.1.1983
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GB/T 5660-1985
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End-suction centrifugal pumps—Baseplate and installation dimensions
WITHDRAWN published on 25.11.1985
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GB/T 5661-1985
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End-suction centrifugal pumps—Dimensions of cavities for mechanical seals and for soft packing
WITHDRAWN published on 25.11.1985
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GB/T 5661-2004
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End-suction centrifugal pumps—Dimensions of cavities for mechanical seals and for soft packing
WITHDRAWN published on 9.6.2004
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GB/T 5662-1985
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End-suction centrifugalpumps (rating 16 bar)—Designation, nominal duty point and dimensions
WITHDRAWN published on 25.11.1985
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