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Standards GB - Chinese national standards - Page 7393
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 9469.1-1988
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Process data highway typeC (PROWAY C) for distributed process control systems--Overview
WITHDRAWN published on 27.6.1988
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GB/T 9469.10-1988
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Process data highway type C (PROWAY C) for distributed process control systems--PROWAY management
WITHDRAWN published on 27.6.1988
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GB/T 9469.2-1988
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Process data highway type C (PROWAY C) for distributed process control systems--Functional requirements
WITHDRAWN published on 27.6.1988
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GB/T 9469.3-1988
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Processdata highway type C (PROWAY C) for distributed process control systems--The interface to PROWAY
WITHDRAWN published on 27.6.1988
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GB/T 9469.4-1988
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Process data highway type C (PROWAY C) for distributed process control systems--The PROWAY link control (PLC)sublayer
WITHDRAWN published on 27.6.1988
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GB/T 9469.5-1988
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Process data highway type C (PROWAY C) for distributedprocess control systems--PLC-MAC interface and service specification
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GB/T 9469.6-1988
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Process data highway type C (PROWAY C) for distributed process control systems--The medium access control (MAC) sublayer
WITHDRAWN published on 27.6.1988
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GB/T 9469.7-1988
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Process data highway type C (PROWAY C) for distributed process control systems--MAC-physical layer interface specification
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GB/T 9469.8-1988
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Process data highway type C (PROWAY C) for distributed process control systems--Specification of the single channel phase-continuous-FKS physical (PHY) layer and its interface to the medium
WITHDRAWN published on 27.6.1988
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GB/T 9469.9-1988
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Process data highway type C (PROWAY C) for distributed process control systems--Single-channel coaxial-cable bus medium layer specification
WITHDRAWN published on 27.6.1988
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