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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
Nuclear criticality safety for fissile materials outside reactors - Part 8: Criticality safety criteria for the handling, storage, and transportation of LWR fuel outside reactors
Standard published on 19.9.2008
Selected format:Nuclear criticality safety for fissile materials outside reactor--Performanceand testing requirements for nuclear criticality detection and alarm systems
Standard published on 22.12.1994
Selected format:Penetrant testing for component parts of nuclear fuel assemblies
Standard published on 5.10.2025
Selected format:Technical specifications for power load management system
Standard published on 25.4.2024
Selected format:Teleprotection equipment of power systems--Performance and testing--Part 1:Command systems
Standard published on 26.3.2002
Selected format:Manganese ores--Determination of phosphorus content--Phosphomolybdenum blue spectrophotometric method
Standard published on 11.9.2002
Selected format:Bank card originated messages--Interchange message specifications--Content for financial transactions
Standard published on 30.7.1994
Selected format:General specification of frequency counter
Standard published on 31.12.2012
Selected format:Telecontrol equipment and systems—Part 2: Operating conditions—Section 1: Power supply and electromagnetic compatibility
Standard published on 15.3.2024
Selected format:Telecontrol equipment and systems--Part 2:Operating conditions--Section 2:Environmental conditions (cli-maticmechanical and other non-electrical influences)
Standard published on 11.12.2000
Selected format:Latest update: 2026-04-24 (Number of items: 2 274 650)
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