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Standards GB - Chinese national standards - Page 580
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 15969.6-2015
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Programmable controllers—Part 6: Functional safety
Standard published on 10.12.2015
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GB/T 15969.7-2008
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Programmable controllers - Part 7: Fuzzy control programming
Standard published on 30.6.2008
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GB/T 15969.8-2025
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Programmable controllers—Part 8: Guidelines for the application and implementation of programming languages
Standard published on 31.10.2025
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GB/T 15969.9-2021
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Programmable controllers—Part 9: Single-drop digital communication interface for small sensors and actuators (SDCI)
Standard published on 20.8.2021
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GB/T 15970.1-2018
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Corrosion of metals and alloys—Stress corrosion testing—Part 1: General guidance on testing procedures
Standard published on 14.5.2018
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GB/T 15970.10-2021
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Corrosion of metals and alloys—Stress corrosion testing—Part l0: Reverse U-bend method
Standard published on 20.8.2021
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GB/T 15970.11-2022
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Corrosion of metals and alloys—Stress corrosion cracking—Part 11: Guidelines for testing the resistance of metals and alloys to hydrogen embrittlement and hydrogen-assisted cracking
Standard published on 30.12.2022
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GB/T 15970.2-2000
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Corrosionof metals and alloys--Stress corrosion testing--Part 2:Preparation and use of bent-beam specimens
Standard published on 25.10.2000
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GB/T 15970.3-1995
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Corrosion of metals and alloys--Stress corrosion testing--Part 3:Preparation and use of U-bend specimens
Standard published on 25.12.1995
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GB/T 15970.4-2000
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Corrosion of metals and alloys--Stress corrosion testing--Part 4:Preparation and use of uniaxially loaded tension specimens
Standard published on 25.10.2000
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