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Standards GB - Chinese national standards - Page 6259
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 18898.1-2002
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Erbium-doped fiber-amplifier—C-band erbium-doped fiber-amplifier
WITHDRAWN published on 4.12.2002
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GB/T 18899-2002
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All dielectric self-supporting optical fiber cable
WITHDRAWN published on 4.12.2002
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GB/T 189-1997
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Classification standard for size fractions of coal
WITHDRAWN published on 17.4.1997
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GB 1890-1989
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Food additive Sodium hexametaphosphate
WITHDRAWN published on 1.3.1989
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GB 1890-2005
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Food additive—Sodium hexametaphosphate
WITHDRAWN published on 30.6.2005
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GB/T 18900-2002
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Test methods for polarization mode dispersion of single-mode optical fibres
WITHDRAWN published on 4.12.2002
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GB/T 18905.1-2002
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Software engineering—Product evaluation—Part 1:General overview
WITHDRAWN published on 4.12.2002
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GB/T 18905.2-2002
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Software engineering—Product evaluation—Part 2:Planning and management
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GB/T 18905.3-2002
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Software engineering—Product evaluation—Part 3:Process for developers
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GB/T 18905.4-2002
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Software engineering—Product evaluation—Part 4:Process for acquirers
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