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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
Steel cord conveyor belts—Cover thickness measurement
WITHDRAWN published on 22.12.1994
Selected format:Steel cord conveyor belts—Methods for the determination of total thickness and cover thickness
WITHDRAWN published on 31.3.2008
Selected format:Steel cord conveyor belts—Longitudinal traction test—Measurement of tensile strength
WITHDRAWN published on 7.1.1986
Selected format:Steel cord conveyor belts—Longitudinal traction test—Part 2:Measurement of tensile strength
WITHDRAWN published on 15.9.2005
Selected format:Steel cord conveyor belts—Cord-to-coating bond test
WITHDRAWN published on 28.8.2000
Selected format:Steel cord conveyor belts—Cord-to-coating bond test—Initial test and after thermal treatment
WITHDRAWN published on 9.6.2013
Selected format:Terms of conveyor belts and transmission belts
WITHDRAWN published on 7.1.1986
Selected format:Determination for water retention capacity of ion exchange resins
WITHDRAWN published on 8.1.1986
Selected format:Determination for particle size distribution of ion exchange resins
WITHDRAWN published on 1.1.1986
Selected format:Determination for particle size range,effective size and uniformity coefficient of ion exchange resins
WITHDRAWN published on 28.8.2001
Selected format:Latest update: 2026-06-12 (Number of items: 2 281 969)
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