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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
Lubricating oils--Determination of foaming characteristics
WITHDRAWN published on 1.1.1990
Selected format:Working chemical—Potassium iodate
WITHDRAWN published on 18.12.1990
Selected format:Inhibited mineral insulating oils--Determination of oxidation stability
WITHDRAWN published on 14.12.1990
Selected format:Inhibited mineral oils--Determination of oxidation characteristics
WITHDRAWN published on 14.12.1990
Selected format:Rubber or plastics coated fabrics--Low temperature impact test
WITHDRAWN published on 1.1.1990
Selected format:Rubber or plastics coated fabrics—Low-temperature impact test
WITHDRAWN published on 28.8.2001
Selected format:Fabrics coated with vulcanized rubber--Determination of vapour transmission rate of volatile liquids (gravimetric technique)
WITHDRAWN published on 1.1.1990
Selected format:Rubber,vulcanized or thermoplastic—Rubber sheet and rubber-coated fabric—Determination rate of volatile liquids(gravimetic technique)
WITHDRAWN published on 28.8.2001
Selected format:Rubber or plastics coated fabrics--Determination of resistance to damage by flexing (dynamic method)
WITHDRAWN published on 1.1.1990
Selected format:Rubber or plastics coated fabrics--Determination of crush resistance
WITHDRAWN published on 1.1.1990
Selected format:Latest update: 2025-09-15 (Number of items: 2 233 685)
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