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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 of burning behaviour for flame retardant treated wood—Method of test for fire propagation
WITHDRAWN published on 25.1.1999
Selected format:Sampling and judging methods for lot inspection of logs and sawn timbers—Part 1:Sampling and judging methods for lot inspection of logs
WITHDRAWN published on 25.1.1999
Selected format:Sampling and judging methods for lot inspection of logs and sawn timbers—Part 2:Sampling and judging methods for lot inspection of sawn timbers
WITHDRAWN published on 25.1.1999
Selected format:-
WITHDRAWN published on 1.1.1979
Selected format:Paint and varnish—Rating schemes of degradation of coats
WITHDRAWN published on 12.6.1995
Selected format:Symbol of logs defect terms
WITHDRAWN published on 25.1.1999
Selected format:Code name of the main commercial timber
WITHDRAWN published on 25.1.1999
Selected format:Wood charcoal and test methods of wood charcoal
WITHDRAWN published on 25.1.1999
Selected format:Test method of wooden granular activated carbon adsorption to CCl4 vapor
WITHDRAWN published on 25.1.1999
Selected format:Brush-cutters and grass-trimmers—Technical data
WITHDRAWN published on 25.1.1999
Selected format:Latest update: 2026-04-27 (Number of items: 2 274 955)
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