Standards GB - Chinese national standards - Page 6748

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GB/T 18874.3-2009 WITHDRAWN

Cranes—Information to be provided—Part 3:Tower cranes

WITHDRAWN published on 15.12.2009

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GB/T 18876.1-2002 WITHDRAWN

Standard practice for determining the metallographical constituent and inclusion content of steels and other metals by automatic image analysis—Part 1:Determining the inclusion or second-phase constituent content of steels and other metals by automatic image analysis and stereology

WITHDRAWN published on 19.11.2002

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GB/T 18876.2-2006 WITHDRAWN

Standard practice for determining the metallographical constituent and inclusion content of steels and other metals by automatic image analysis—Part 2:Determining the inclusion ratings of steels by automatic image analysis and stereology

WITHDRAWN published on 1.11.2006

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