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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
Code for design of boiler plant
Standard published on 16.1.2020
Selected format:Code for anticorrosion design of industrial constructions
Standard published on 11.9.2018
Selected format:Code for design of small fossil fired power plant
Standard published on 1.1.2011
Selected format:Specifications of drilling fluid materials
Standard published on 2.9.2010
Selected format:Code for design of industrial recirculating cooling water treatment
Standard published on 27.5.2017
Selected format:Code for construction and acceptance of chimney engineering
Standard published on 9.4.2021
Selected format:Code for design electric power supply systems
Standard published on 11.11.2009
Selected format:Code for design of 20kV and below substation
Standard published on 1.1.2013
Selected format:Code for design of low voltage electrial installations
Standard published on 26.7.2011
Selected format:Code for design of electric distribution of general-purpose utilization equipment
Standard published on 26.7.2011
Selected format:Latest update: 2026-07-12 (Number of items: 2 286 472)
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