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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—Cathodic protection of offshore wind structures
Standard published on 29.8.2025
Selected format:Ductile iron pipes for trenchless application
Standard published on 29.8.2025
Selected format:Paper, board and pulps—Determination of moisture content of analytical sample
Standard published on 7.9.2023
Selected format:Determination of coefficient of linear thermal expansion of fiber reinforced polymer matrix composites at ultra-low temperature
Standard published on 29.8.2025
Selected format:Fiber reinforced composites—Determination of mixed mode I-mode II interlaminar fracture toughness of unidirectional reinforced materials
Standard published on 29.8.2025
Selected format:Plastics/rubber—Polymer dispersions and rubber latices (natural and synthetic)—Definitions and review of test methods
Standard published on 29.8.2025
Selected format:Classification and codes for reagent in biological research
Standard published on 5.10.2025
Selected format:Requirement for traceability management in medicinal product cold chain logistics
Standard published on 5.10.2025
Selected format:Requirements for processing and analyzing of metagenomic data
Standard published on 5.10.2025
Selected format:Wild plant seed banking—Requirements on seed collecting and information management
Standard published on 5.10.2025
Selected format:Latest update: 2026-11-10 (Number of items: 2 209 227)
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