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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
Electric wires and cables--Test method for ageing in an oxygen bomb
WITHDRAWN published on 1.1.1983
Selected format:Common test methods for insulating and sheathing materials of electric cables Part 4:Methods specific to polyethylene and polypropylene compounds Section two:Elongation at break after pre-conditioning—Wraping test after pre-conditioning—Wrapping test after thermal ageing in air—Measurement of mass increase Long-term stability test(Appendix A) Test method for copper catalysed oxidative degradation(Appendix B)
WITHDRAWN published on 28.10.1997
Selected format:General requirements for the distribution of personal protection equipment
WITHDRAWN published on 9.5.2013
Selected format:Protective clothing—Chemical protective clothing against solid particulates
WITHDRAWN published on 9.5.2013
Selected format:Technical specification of steel making slag treatment technology
WITHDRAWN published on 9.5.2013
Selected format:Technical specification of steel making slag treatment technology
WITHDRAWN published on 9.5.2013
Selected format:Protective coverings for electric cables--General
WITHDRAWN published on 31.3.1989
Selected format:Protective coverings for electric cables--General protective coverings for cables with metallic sheath
WITHDRAWN published on 31.3.1989
Selected format:Protective coverings for electric cables--General protective coverings for cables with non-metallic sheath
WITHDRAWN published on 31.3.1989
Selected format:Protective coverings for electric cables--Specific protective coverings for oil-filled cables with lead sheath
WITHDRAWN published on 22.3.1982
Selected format:Latest update: 2026-03-16 (Number of items: 2 266 785)
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