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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
Self-propelled machinery for forestry—Falling-object protective structures(FOPS)—Laboratory tests and performance requirements
Standard published on 31.10.2025
Selected format:Portable chain-saws—Determination of balance and maximum holding moment
Standard published on 31.10.2025
Selected format:Method for radius determination of printing cylinders
Standard published on 31.10.2025
Selected format:Portable brush-cutters and grass-trimmers—Cutting attachment guard strength
Standard published on 31.10.2025
Selected format:Portable brush cutters—Cutting attachments—Single-piece metal blades
Standard published on 31.10.2025
Selected format:Manually portable forest machinery—Recyclability and recoverability—Calculation method
Standard published on 31.10.2025
Selected format:Powered ride-on turf care equipment—Roll-over protective structures (ROPS)—Test procedures and acceptance criteria
Standard published on 31.10.2025
Selected format:Portable chain-saw front hand-guard—Dimensions and clearances
Standard published on 31.10.2025
Selected format:Portable brush-cutters and grass-trimmers—Cutting attachment guard dimensions
Standard published on 31.10.2025
Selected format:Portable chain-saws—Chain catcher—Dimensions and mechanical strength
Standard published on 31.10.2025
Selected format:Latest update: 2026-08-26 (Number of items: 2 298 418)
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