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Standards GB - Chinese national standards - Page 197
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
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GB/T 12598-2023
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Plastics—Ion exchange resin—Determination for the rate of sphericity after osmotic-attrition and attrition
Standard published on 7.9.2023
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GB/T 12599-2002
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Metallic coatings--Electroplated coatings of tin--Specification and test methods
Standard published on 11.9.2002
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GB/Z 126.1-2025
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Process management for avionics—Electronics design—Part 1:Electrical signal properties,naming conventions and interface control document(ICD)
Standard published on 3.12.2025
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GB 1260-2008
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Working chemical - Zinc oxide
Standard published on 18.6.2008
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GB/T 12600-2005
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Metallic coatings Electroplated coatings of nickel plus chromium on plastics materials
Standard published on 23.6.2005
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GB/T 12601-1990
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Basic terminology of harmonic gear drive
Standard published on 18.12.1990
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GB/T 12602-2020
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Safety devices against over1oading for lifting appliances
Standard published on 31.3.2020
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GB/T 12603-2005
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Classifications and designations for metal heat treatment
Standard published on 21.7.2005
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GB/T 12604.1-2020
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Non-destructive testing—Terminology—Ultrasonic testing
Standard published on 19.11.2020
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GB/T 12604.10-2023
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Non-destructive testing—Terminology—Part 10Magnetic memory testing
Standard published on 23.5.2023
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