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Standards GB - Chinese national standards - Page 6272
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 14197-1993
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Preferred matching values for the interconnection of sound system components
WITHDRAWN published on 20.2.1993
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GB/T 14198-1993
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General specification for microphones
WITHDRAWN published on 20.2.1993
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GB/T 14199-1993
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General specification for pocket hearing aids
WITHDRAWN published on 20.3.1993
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GB 142-1995
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Logs for direct—Pit-props
WITHDRAWN published on 8.12.1995
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GB/T 1420-1989
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Sponge palladium
WITHDRAWN published on 22.3.1989
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GB/T 1420-2004
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Sponge palladium
WITHDRAWN published on 5.2.2004
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GB/T 14200-1993
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Minimum performance requirements for high fidelity audio amplifiers
WITHDRAWN published on 20.3.1993
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GB/T 14201-1993
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Iron ore pellets—Determination of crushing strength
WITHDRAWN published on 22.2.1993
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GB/T 14202-1993
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Iron ores (sinter and pellets)—Determination of bulk density
WITHDRAWN published on 22.2.1993
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GB/T 14203-1993
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General rule for photoelectric emission spectroscopic analysis of iron, steel and alloy
WITHDRAWN published on 1.3.1993
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