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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 for shear strength of pressure sensitive adhesive tapes (adhesive layer to back side of the tape)
WITHDRAWN published on 30.3.1987
Selected format:Rubber, vulcanized--Determination of permeability to gases--Constant volume method
WITHDRAWN published on 25.5.1987
Selected format:Rubber, vulcanized of thermoplastic—Determination of permeability to gases
WITHDRAWN published on 23.6.2003
Selected format:Rubber--vulcanized--Determination of permeability to gases--Constant pressure method
WITHDRAWN published on 25.5.1987
Selected format:Rubber, vulcanized or thermoplastic—Determination of compression stress-strain properties
WITHDRAWN published on 30.12.1993
Selected format:Rubber, vulcanized--Determination of low temperature characteristics--Temperature-retraction procedure(TR test)
WITHDRAWN published on 25.5.1987
Selected format:Rubber,vulcanized—Determination of low-temperature characteristics—Temperature-retraction procedure(TR test)
WITHDRAWN published on 15.10.2002
Selected format:Rubber, Vulcanized or thermoplastic—Determination of compression set at ambient elevated or low temperatures
WITHDRAWN published on 28.10.1996
Selected format:Electrical indicating measuring instruments--General specification
WITHDRAWN published on 16.10.1976
Selected format:Rubber, Vulcanized--Determination of adhesion to metal--One-plate method
WITHDRAWN published on 25.5.1987
Selected format:Latest update: 2025-07-21 (Number of items: 2 209 006)
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