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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 and plastics hoses for general—Purpose industrial applications-Bore diameters and tolerances,and tolerances on length
WITHDRAWN published on 10.1.2003
Selected format:Rubber and plastics hose and hose assemblies—Guide to selection,storage,use and maintenance
WITHDRAWN published on 28.8.2001
Selected format:Rubber and plastics hoses and hose assemblies—Guidelines for selection,storage,use and maintenance
WITHDRAWN published on 19.7.2013
Selected format:Standard reference black
WITHDRAWN published on 29.6.1988
Selected format:Standard reference black 3#
WITHDRAWN published on 29.5.2002
Selected format:Industry reference carbon black 4#
WITHDRAWN published on 5.12.2011
Selected format:Carbon black in SBR(Styrene-butadiene rubber)-Recipe and evaluation method
WITHDRAWN published on 4.11.1998
Selected format:Geological symbols used for regional geological maps (1:50000)
WITHDRAWN published on 22.2.1989
Selected format:Standard practice for carbon black--Evaluation of a standard reference black
WITHDRAWN published on 29.6.1988
Selected format:Standard practice for carbon black—Evaluation of a standard reference black
WITHDRAWN published on 29.5.2002
Selected format:Latest update: 2024-09-04 (Number of items: 2 346 114)
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