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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
Common test methods for insulating and sheathing materials of electric cables—Part 5:Methods specific to filling compounds Section two:Drop-point—Separation of oil—Lower temperature brittleness—Total acid number—Absence of corrosive components—Permittivity at 23-D.C. resistivity at 23 and 100
WITHDRAWN published on 28.10.1997
Selected format:Electric wire and cable--Test method for determining loss of mass for P. V. C. sheaths
WITHDRAWN published on 1.1.1982
Selected format:Test method for determining mechanical and physical properties of electric cables and wires. Test for determining loss of mass for P. V. C. sheaths
WITHDRAWN published on 1.1.1994
Selected format:Electric wire and cable--Test method for bending at low temperature
WITHDRAWN published on 1.1.1982
Selected format:Test method for determining mechanical and physical properties of electric cables and wires. Test for bending at low temperature
WITHDRAWN published on 1.1.1994
Selected format:Electric wire and cable--Test method for elongation at low temperature
WITHDRAWN published on 1.1.1982
Selected format:Test method for determining mechanical and physical properties of electric cables and wires. Test for elongation at low temperature
WITHDRAWN published on 1.1.1994
Selected format:Electric wire and cable--Test method for impact at low temperature
WITHDRAWN published on 1.1.1982
Selected format:Test method for determining mechanical and physical properties of electric cables and wires. Test for impact at low temperature
WITHDRAWN published on 1.1.1994
Selected format:Electric wire and cable--Oil immersion test method
WITHDRAWN published on 1.1.1982
Selected format:Latest update: 2026-03-16 (Number of items: 2 266 785)
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