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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
Equivalent size estimation methods of space debris based on ground-based microwave radar measurement
Execute Date: november 2026
Standard published on 2.7.2026
Selected format:Commercial road vehicles - 50mm drawbar eye - Interchangeability
Standard published on 10.1.2006
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Test requirements for electrical performance of navigation satellite
Execute Date: november 2026
Standard published on 2.7.2026
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Mechanical interface requirements for launch vehicle and stacked flat-panel satellite
Execute Date: november 2026
Standard published on 2.7.2026
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Requirements for global navigation satellite system (GNSS) positioning augmentation centers
Execute Date: november 2026
Standard published on 2.7.2026
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General specifications for tether launching and retrieving mechanism of tethered aerostat
Execute Date: november 2026
Standard published on 2.7.2026
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Global navigation satellite system (GNSS) receiver class codes
Execute Date: november 2026
Standard published on 2.7.2026
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Petroleum and natural gas industries—Offshore platforms handling streams with high content of CO2 at high pressures
Execute Date: november 2026
Standard published on 2.7.2026
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Graphic symbol for propellant loading and gas supply system in commercial spaceport
Execute Date: november 2026
Standard published on 2.7.2026
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Specification for design and calibration of wind tunnel strain gauge balances
Execute Date: february 2027
Standard published on 2.7.2026
Selected format:Latest update: 2026-08-21 (Number of items: 2 298 377)
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