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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
Semiconductor devices—Mechanical and climatic test methods—Part 31:Flammability of platic-encapsulated devicesinternally induced
Standard published on 23.5.2023
Selected format:Semiconductor devices—Mechanical and climatic test methods—Part 32:Flammability of platic-encapsulated devicesexternally induced
Standard published on 23.5.2023
Selected format:Semiconductor devices—Mechanical and climatic test methods—Part 33: Accelerated moisture resistance—Unbiased autoclave
Standard published on 2.12.2025
Selected format:Semiconductor devices—Mechanical and climatic test methods—Part 34:Power cycling
Standard published on 15.3.2024
Selected format:Semiconductor devices—Mechanical and climatic test methods—Part 35: Acoustic microscopy for plastic encapsulated electronic components
Standard published on 15.3.2024
Selected format:Semiconductor devices—Mechanical and climatic test methods—Part 36:Accelerationsteady state
Standard published on 2.12.2025
Selected format:Semiconductor devices—Mechanical and climatic test methods—Part 37: Board level drop test method using an accelerometer
Standard published on 31.12.2025
Selected format:Semiconductor devices—Mechanical and climatic test methods—Part 38: Soft error test method for semiconductor devices with memory
Standard published on 2.12.2025
Selected format:Semiconductor devices—Mechanical and climatic test methods—Part 39: Measurement of moisture diffusivity and water solubility in organic materials used for semiconductor components
Standard published on 31.12.2025
Selected format:Semiconductor devices - Mechanical and climatic test methods - Part 4: Damp heat, steady state, highly accelerated stress test (HAST)
Standard published on 5.11.2012
Selected format:Latest update: 2026-07-12 (Number of items: 2 286 472)
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