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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
Valves for cryogenic vessels
Standard published on 31.10.2025
Selected format:Plain bearings—Fluid film bearing materials for vehicular turbocharger
Standard published on 31.10.2025
Selected format:Green product assessment—Biobased materials and products
Standard published on 31.10.2025
Selected format:Control of water-borne iodine excess area and iodine excess endemial area
Standard published on 31.10.2025
Selected format:Textiles - Fabrics - Determination of width and length
Standard published on 21.4.2009
Selected format:General technical requirements for whole genome sequencing of SARS-CoV-2
Standard published on 31.10.2025
Selected format:Magnetic beads performance detection methods for cell separation
Standard published on 31.10.2025
Selected format:Requirements and measurement methods for dynamic energy efficiency of data center IT systems
Standard published on 31.10.2025
Selected format:Intelligent manufacturing service—Classification and code
Standard published on 31.10.2025
Selected format:Information technology—Virtual keyboard layouts for Tibetan characters
Standard published on 31.10.2025
Selected format:Latest update: 2026-11-10 (Number of items: 2 209 227)
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