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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
Liquid encapsulated czochralski - grown gallium arsenide single crystals and as-cut slices
Standard published on 11.9.2007
Selected format:Gallium arsenide single crystal and cutting wafer grown by horizontal bridgman method
Standard published on 29.9.2020
Selected format:Guide for selection and use of lead acid battery monitoring system in stationary applications of nuclear power plant
Standard published on 3.12.2025
Selected format:Cemented carbide blanks for round rods
Standard published on 6.3.2020
Selected format:Cemented carbide products for geological exploration drilling tools
Standard published on 9.6.2008
Selected format:Metallic powder - Rattle test for the green compacts
Standard published on 31.12.2012
Selected format:Metallic powder—Determination of green strength by compression of cylinder compacts
Standard published on 9.3.2022
Selected format:Metallic and its compound powder—Determination of specific surface and particle size—Air permeating method
Standard published on 17.9.2018
Selected format:Test method for thermal diffusivity of hardmetal
Standard published on 14.10.2017
Selected format:Polyethylene(PE) resin
Standard published on 17.7.2009
Selected format:Latest update: 2026-03-16 (Number of items: 2 266 785)
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