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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
Test methods for wall bricks
WITHDRAWN published on 11.2.2003
Selected format:Actuates the rake
WITHDRAWN published on 10.11.2010
Selected format:Rectangular bale baler
WITHDRAWN published on 10.11.2010
Selected format:Wind turbine generator systems measurement of mechanical loads
WITHDRAWN published on 10.11.2010
Selected format:Wind turbine generator systems—Lightning protection
WITHDRAWN published on 10.11.2010
Selected format:Petroleum and natural gas industries—Drilling and production equipment—Drilling and well-servicing structures
WITHDRAWN published on 10.11.2010
Selected format:Specification for drill string non-return valve
WITHDRAWN published on 10.11.2010
Selected format:Textiles—Determination of twist in yarn—Part 1:Direct counting method
WITHDRAWN published on 26.2.2001
Selected format:Specification for drill through equipment—Rotating control devices
WITHDRAWN published on 10.11.2010
Selected format:Safety requirements of rubber internal mixers & plastics internal mixers
WITHDRAWN published on 10.11.2010
Selected format:Latest update: 2026-04-23 (Number of items: 2 274 600)
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