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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
Determination for sphericity of ion exchange resins after attrition or osmotic-attrition
WITHDRAWN published on 28.8.2001
Selected format:Metallic coatings--Electroplated coatings of tin
WITHDRAWN published on 1.1.1990
Selected format:Specifications for construction and acceptance of industrial equipment and pipeline heat insulation
WITHDRAWN published on 27.3.1989
Selected format:Working chemical—Zinc oxide
WITHDRAWN published on 18.12.1990
Selected format:Metallic coatings—Electroplated coatings of copper plus nickel plus chromium on plastics materials
WITHDRAWN published on 18.10.1990
Selected format:Lifting appliances—Safety devices against overloading—Safety technology code
WITHDRAWN published on 18.12.1990
Selected format:Lifting appliances-safety devices against overloading
WITHDRAWN published on 24.4.2009
Selected format:Classification and designation on metal heat treatment
WITHDRAWN published on 18.12.1990
Selected format:Terminology for nondestructive testing—Ultrasonic testing
WITHDRAWN published on 18.12.1990
Selected format:Non-destructive testing—Terminology—Terms used in ultrasonic testing
WITHDRAWN published on 8.6.2005
Selected format:Latest update: 2026-01-09 (Number of items: 2 253 999)
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