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Standards GB - Chinese national standards - Page 5549
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 11237-1989
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Stethoscope
WITHDRAWN published on 1.1.1989
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GB 11238-1989
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Impression tonometers
WITHDRAWN published on 1.1.1989
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GB/T 11238-1989
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Impression tonometers
WITHDRAWN published on 31.3.1989
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GB 11239-1989
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The operation microscope
WITHDRAWN published on 31.3.1989
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GB 1124-1985
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Convex milling cutters
WITHDRAWN published on 1.1.1985
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GB/T 1124.1-1996
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Convex and concave milling cutters—Part 1:The types and dimensions for concave milling cutters
WITHDRAWN published on 5.7.1996
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GB/T 1124.2-1996
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Convex and concave milling cutters—Part 2:The types and dimensions for convex milling cutters
WITHDRAWN published on 5.7.1996
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GB/T 1124.3-1996
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Convex and concave milling cutters—Technical specifications
WITHDRAWN published on 5.7.1996
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GB 11240-1989
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Electrically-heated thermostatic water bath
WITHDRAWN published on 1.1.1989
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GB/T 11240-1989
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Electrically-heated thermostatic water bath
WITHDRAWN published on 31.3.1989
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