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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
Beta backscattering thickness meter for small area of plating (coating)
WITHDRAWN published on 30.12.1988
Selected format:Basic environmental testing procedures for radiation detectors—General program
WITHDRAWN published on 30.12.1988
Selected format:Basic environmental testing procedures for radiation detectors—Transportation test
WITHDRAWN published on 30.12.1988
Selected format:Basic environmental testing procedures for radiation detectors—Temperature test
WITHDRAWN published on 30.12.1988
Selected format:Basic environmental testing procedures for radiation detectors—Moisture test
WITHDRAWN published on 30.12.1988
Selected format:Basic environmental testing procedures for radiation detectors—Tests for effect of magnetic field
WITHDRAWN published on 30.12.1988
Selected format:Basic environmental testing procedures for radiation detectors—Effective testing of exposure to light
WITHDRAWN published on 30.12.1988
Selected format:Basic environmental testing procedures for radiation detectors—Irradiation test
WITHDRAWN published on 30.12.1988
Selected format:Basic environmental testing procedures for radiation detectors—Tests for effect of salt mist
WITHDRAWN published on 30.12.1988
Selected format:Basic environmental testing procedures for radiation detectors—Vibration test
WITHDRAWN published on 30.12.1988
Selected format:Latest update: 2026-06-11 (Number of items: 2 281 927)
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