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Standards GB - Chinese national standards - Page 8761
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 8401.2-1987
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Measuring methods for transmission and optical characteristics of optical fibres--Cut-back technique
WITHDRAWN published on 1.1.1987
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GB/T 8401.3-1987
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Measuring methods for transmission and optical characteristics of optical fibres--Insertion loss technique
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GB/T 8401.4-1987
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Measuring methods for transmission and optical characteristics of optical fibres--Backscattenring technique
WITHDRAWN published on 1.1.1987
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GB/T 8401.5-1987
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Measuring methods for transmission and optical characteristics of optical fibres--Frequency domain methods
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GB/T 8401.6-1987
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Measuring methods for transmission and optical characteristics of optical fibres--Time domain method
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GB/T 8401.7-1987
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Measuring methods for transmission and optical characteristics of optical fibres--Phase shift method
WITHDRAWN published on 1.1.1987
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GB/T 8401.8-1987
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Measuring methods for transmission and optical characterics of optical fibres--Pulse delay method
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GB/T 8401.9-1987
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Measuring methods for transmission and optical characteristcs of optical fibres--Refracted near-field technique
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GB/T 8402.1-1987
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Measuring methods for (Geometrical) dimensional parameters of optical fibres--General
WITHDRAWN published on 1.1.1987
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GB/T 8402.2-1987
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Measuring methods for (geometrical) dimensional parameters of optical fibres--Refracted near-field technique
WITHDRAWN published on 1.1.1987
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