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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
Test method of viscosity for rubber antiagers and vulcanizing accelerators—Rotational viscometer method
WITHDRAWN published on 31.3.1989
Selected format:Test method of insoluble matter in hydrochloric acid for rubber antiager and vuclcanizing accelerators
WITHDRAWN published on 30.5.1989
Selected format:Test method of insoluble matter in hydrochloric acid for rubber antiagers and vulcanizing accelerators
WITHDRAWN published on 10.1.2003
Selected format:Core drills with Morse taper shanks
WITHDRAWN published on 6.12.1973
Selected format:Technical specifications and operational requirements for the systems for promulgation of navigational and meteorological warnings and urgent information
WITHDRAWN published on 4.7.1989
Selected format:Technical requirements for safety of commencing a sea voyage of sea going transport ships—General rules
WITHDRAWN published on 31.5.1989
Selected format:Technical requirements for safety of commencing a sea voyage of sea going transport ships—Deck department
WITHDRAWN published on 31.5.1989
Selected format:Technical requirements for safety of commencing a sea voyage of sea going transport ships—Engineering department
WITHDRAWN published on 31.5.1989
Selected format:Test method for bond strength of leather shoe heels
WITHDRAWN published on 29.5.1989
Selected format:Test methods for bond strength of leather shoes heels
WITHDRAWN published on 26.9.2005
Selected format:Latest update: 2025-12-26 (Number of items: 2 253 153)
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