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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
Safety classification of instrumentation and control systems and their electrical equipment of nuclear power plants
WITHDRAWN published on 27.1.1995
Selected format:Classification of quality assurance for instrumentation and control system and their electrical equipment of nuclear power plants
WITHDRAWN published on 27.1.1995
Selected format:Kidney function instrument
WITHDRAWN published on 27.1.1995
Selected format:Test methods of the performances for pressure transducer/sensor
WITHDRAWN published on 27.1.1995
Selected format:Pulps—Determination of viscosity
WITHDRAWN published on 29.4.1979
Selected format:Pulps-Determination of viscosity
WITHDRAWN published on 15.3.2004
Selected format:Series of mounting sizes for vibrationshock and bump machine tables for electric and electronicproducts
WITHDRAWN published on 27.1.1995
Selected format:General requirements for the competence of testing and calibration laboratories
WITHDRAWN published on 27.12.2000
Selected format:Single sampling procedures and tables for product quality audit of small population by attributes
WITHDRAWN published on 30.6.1995
Selected format:Development and operation of laboratory proficiency testing
WITHDRAWN published on 1.1.1995
Selected format:Latest update: 2026-01-20 (Number of items: 2 257 233)
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