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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
Quantities, units and symbols of fishing gear and materials for fishing gear
Standard published on 28.12.2023
Selected format:Determination of mesh size of fishing nets
Standard published on 26.9.2010
Selected format:Basic conditions for testing fishing gear materials—Pre-tension
Standard published on 27.2.2026
Selected format:Martensitic stainless steel castings for general engineering application
Standard published on 5.3.2009
Selected format:Diaphragm gas meters
Standard published on 10.5.2019
Selected format:Rubber suction hose for fire-flighting purpose
Standard published on 28.9.2005
Selected format:
Fire suction hose
Execute Date: march 2027
Standard published on 27.2.2026
Selected format:Testing methods for grain driers
Standard published on 5.10.2025
Selected format:Test method for feed mills
Standard published on 1.11.2007
Selected format:Testing methods of single seed drills(precision drills)
Standard published on 24.10.2005
Selected format:Latest update: 2026-11-10 (Number of items: 2 209 227)
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