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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
Test methods for noise generator
WITHDRAWN published on 27.3.1990
Selected format:Requirements for the interconnections and matching of color television broadcast receivers and other equipment
WITHDRAWN published on 27.3.1990
Selected format:(Life Test Table. The best linear unbiased estimation table (extreme value distribution, Weibull distribution))
WITHDRAWN published on 1.1.1990
Selected format:Tables for life testing--Tables for good linear unbiased estimate (GLUE) (Extreme-value distribution, weibull distribution)
WITHDRAWN published on 1.1.1990
Selected format:Tables for life testing - Tables for best linear unbiased (BLUE) (Normal distribution, log normal distribution)
WITHDRAWN published on 1.1.1990
Selected format:Tables for life testing - Tables for good linear unbiased estimate (GLUE) (Normal distribution, log normal distribution)
WITHDRAWN published on 1.1.1990
Selected format:Tables for life testing - Tables for ? (1+1/m)
WITHDRAWN published on 1.1.1990
Selected format:Fruits, vegetables and derived products—Decomposition method of organic matter
WITHDRAWN published on 29.3.1990
Selected format:Fruit and vegetable products—Determination of copper content—Photometric method
WITHDRAWN published on 29.3.1990
Selected format:Fruits, vegetables and derived products—Determination of zinc content
WITHDRAWN published on 29.3.1990
Selected format:Latest update: 2026-03-04 (Number of items: 2 265 056)
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