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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
Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 4: Initial surface conditions preparation grades and flash rust grades in connection with high-pressure water jetting
Standard published on 19.7.2013
Selected format:Test method for flammability characteristics of fiber reinforced plastics-Oxygen index method
Standard published on 18.5.2005
Selected format:Standard test method for insolubles in used lubricating oils
Standard published on 5.11.2012
Selected format:Petroleum and liquid petroleum products-Temperature measurement - Manual methods
Standard published on 13.2.2008
Selected format:Standard test method for density of semi-solid and solid asphalt
Standard published on 13.2.2008
Selected format:Crude petroleum - Determination of water - Distillation method
Standard published on 18.1.2006
Selected format:Retaining rings for bores
Standard published on 12.7.2017
Selected format:Crude gold ingots
Standard published on 13.2.2001
Selected format:Refractories - Determination of slag resistance
Standard published on 18.4.2007
Selected format:Rendered pork fat for industrial
Standard published on 28.11.2006
Selected format:Latest update: 2026-04-23 (Number of items: 2 274 600)
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