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Standards GB - Chinese national standards - Page 8770
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 8451-1987
WITHDRAWN
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Method for limit test of heavy metals in food additives
WITHDRAWN published on 22.9.1987
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GB/T 8452-1987
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Glass containers--Vertical axis deviation of bottles test methods
WITHDRAWN published on 25.12.1987
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GB 8453-1987
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Industrial magnesium chloride
WITHDRAWN published on 1.1.1987
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GB/T 8454-1987
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Determination of ferrous iron content in reduced ilmenite powder for welding rod
WITHDRAWN published on 25.12.1987
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GB 8455-1987
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Sectional beams for warp knitting machines--Terminology and main dimensions
WITHDRAWN published on 1.1.1987
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GB/T 8456-1987
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Knitting machines--Nominal diameters of circular machines
WITHDRAWN published on 1.1.1987
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GB/T 8456-2003
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Textile machinery--Knitting machines--Nominal diameters of circular machines
WITHDRAWN published on 10.2.2003
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GB/T 8457-1987
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Knitting machines--Numbers of needles for circular knitting machines with large diameter
WITHDRAWN published on 1.1.1987
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GB/T 8458-1987
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Pitches of knitting machines needles
WITHDRAWN published on 1.1.1987
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GB 8459-1987
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Textile machinery--Cloth rollers--Terminology and main dimensions
WITHDRAWN published on 1.1.1987
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