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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
Rubber, vulcanized or thermoplastic - Determination of dynamic properties - Part 1: General guidance
Standard published on 7.12.2006
Selected format:Rubber, vulcanized or thermoplastic - Determination of dynamic properties - Part 2:Torsion pendulum methods at low frequencies
Standard published on 4.6.2008
Selected format:Rubber,vulcanized or thermoplastic—Determination of dynamic properties—Part 3:Glass transition temperature(Tg)
Standard published on 5.10.2025
Selected format:Rubbervulcanized or thermoplastic-Determination of aging characteristics by measurement of stress relaxation
Standard published on 1.4.2008
Selected format:Rubber and thermoplastic elastomer—Determination of halogen content
Standard published on 31.3.2026
Selected format:Rubber--Determination of lead content by atomic absorption spectrometry
Standard published on 28.8.2001
Selected format:Hydraulic fluid power - Guide specifications for designing rotary shaft lip type seals
Standard published on 1.7.2008
Selected format:Rubber—Vocabulary
Standard published on 28.1.2026
Selected format:Rubber latex products terms
Standard published on 4.6.2008
Selected format:Slotted round head wood screws
Standard published on 2.7.1986
Selected format:Latest update: 2026-11-01 (Number of items: 2 208 794)
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