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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
Manganese ores—Methods of chemical analysis—General instructions
Standard published on 28.5.2024
Selected format:Identification method for iron ore and materials containing iron
Standard published on 28.5.2024
Selected format:Calculation methods for utilization rate of iron ore tailings
Standard published on 28.5.2024
Selected format:Iron ores—Sampling of slurries
Standard published on 28.5.2024
Selected format:Imaging materials—Pictorial colour reflection prints—Methods for evaluating image stability under outdoor conditions
Standard published on 28.5.2024
Selected format:Technical specification for automatic dispensing system of Chinese herbal pieces
Standard published on 28.5.2024
Selected format:Test method for coke solution loss percentage and strength after loss
Standard published on 28.5.2024
Selected format:Requirements and testing methods of warning sound for vehicle reversing
Standard published on 28.5.2024
Selected format:Road vehicles—Drawbar couplings and eyes for rigid drawbars—Part 1: Strength tests for general cargo centre-axle trailers
Standard published on 28.5.2024
Selected format:Road vehicles—Drawbar couplings and eyes for rigid drawbars—Part 2: Strength tests for special applications
Standard published on 28.5.2024
Selected format:Latest update: 2026-09-09 (Number of items: 2 300 143)
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