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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--Determination of adhesion to rigid materials using conical shaped parts
WITHDRAWN published on 25.5.1987
Selected format:Rubber, vulcanized--To zone ageing--Static strain test method
WITHDRAWN published on 25.5.1987
Selected format:Rubber, vulcanized or thermoplastic—Resistance to ozone cracking—Static strain test
WITHDRAWN published on 10.1.2003
Selected format:Rubbervulcanized--Determination method of swelling index
WITHDRAWN published on 25.5.1987
Selected format:Rubber—Indentification-lnfra-red spectrometric method
WITHDRAWN published on 28.8.2001
Selected format:Rubber—Determination of carbon black content—Nitric acid digestion method
WITHDRAWN published on 31.7.2000
Selected format:Standard terminology relating to carbon black
WITHDRAWN published on 11.10.2003
Selected format:Analogue pneumatic signal for industrial process measurement and control instruments
WITHDRAWN published on 3.4.1985
Selected format:Measurement of special metamerism index change in illuminant
WITHDRAWN published on 25.5.1987
Selected format:Vapour vacuum pumps--Measurement of back-streaming rate of pump fluid
WITHDRAWN published on 23.5.1987
Selected format:Latest update: 2025-07-21 (Number of items: 2 209 006)
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