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Standards GB - Chinese national standards - Page 490
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 15127-2008
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Information technology - Telecommunications and information exchange between systems - Twisted pair multipoint interconnections
Standard published on 1.9.2008
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GB/T 15128-2008
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Information technology - Open systems interconnection - Session service definition
Standard published on 19.8.2008
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GB/T 1513-2006
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Manganese ores - Determination of calcium and magnesium contents -Flame atomic absorption spectrometric method
Standard published on 12.9.2006
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GB/T 15130.1-1994
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Information processing--Data interchange on 90mm (35in) flexible disk cartridges using modified frequency modulation recording at 15916 ftprad on 80 tracks on each side--Part1:Dimensional physical and magnetic characteristics
Standard published on 16.7.1994
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GB/T 15130.2-1995
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Information processing--Data interchange on 90mm flexible disk cartridges using modified frequency modulation recording at15916 ftprad on 80 tracks on each side--Part 2:Track format
Standard published on 13.12.1995
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GB/T 15131.1-1994
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Information processing--Data interchange on 130mm flexible disk cartridges using modified frequency modulation recording at 13262 ftpradon 80 tracks on each side--Part 1:Dimensional physical and magnetic characteristics
Standard published on 16.7.1994
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GB/T 15131.3-1995
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Information processing--Data interchange on 130mm flexible disk cartridges using modified frequency modulation recording at 13262 ftprad on 80 tracks on each side--Part 3:Track formatB for 80 tracks
Standard published on 6.4.1995
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GB/T 15134-1994
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Information processing--File structure and labelling of flexible disk cartridges for information interchange
Standard published on 16.7.1994
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GB/T 15135-2018
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Gas turbines—Vocabulary
Standard published on 28.12.2018
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GB/T 15138-1994
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Case outlines for film integrated circuits and hybrid integrated circuits
Standard published on 25.6.1994
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