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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
Corrosion of metals and alloys—Corrosion and fouling in industrial cooling water systems—Part 1: Guidelines and requirements for conducting pilot-scale evaluation of corrosion and fouling control additives for open recirculating cooling water systems
Execute Date: november 2026
Standard published on 30.4.2026
Selected format:
Corrosion of metals and alloys—Corrosion and fouling in industrial cooling water systems—Part 2: Evaluation of the performance of cooling water treatment programmes using a pilot-scale test rig
Execute Date: november 2026
Standard published on 30.4.2026
Selected format:Wind energy generation systems—General technical specification for green demolition of wind turbines
Standard published on 30.4.2026
Selected format:
Packaging machinery—Technical specification for carbon emission reduction of PET bottle—Low pressure bottle blowing system
Execute Date: november 2026
Standard published on 30.4.2026
Selected format:Wind energy generation systems—Technical specification for braking system of wind turbines
Standard published on 30.4.2026
Selected format:Wind energy generation systems—Guide for integrated analysis of floating offshore wind turbines
Standard published on 30.4.2026
Selected format:Wind energy generation systems—Safety monitoring method for tower structures for wind turbines
Standard published on 30.4.2026
Selected format:Method for manual sampling of petroleum liquids
Standard published on 31.12.2015
Selected format:Wind energy generation systems—Technical specification for yaw system of wind turbines
Standard published on 30.4.2026
Selected format:
Non-destructive testing of welds—Ultrasonic testing—Testing technique and acceptance for aluminum and its alloys
Execute Date: november 2026
Standard published on 30.4.2026
Selected format:Latest update: 2026-08-21 (Number of items: 2 298 377)
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