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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
Laboratory glassware—Conical beaker
WITHDRAWN published on 24.10.1995
Selected format:Laboratory glassware—Flask(narrow neck)
WITHDRAWN published on 24.10.1995
Selected format:Laboratory glassware—Kjeldahl flask
WITHDRAWN published on 24.10.1995
Selected format:Laboratory glassware—Flask(wide neck)
WITHDRAWN published on 24.10.1995
Selected format:Laboratory glassware--Flask(multiple neck)
WITHDRAWN published on 24.10.1995
Selected format:Laboratory glassware—Distilling flask
WITHDRAWN published on 24.10.1995
Selected format:Glassware—stress examination methods
WITHDRAWN published on 24.10.1995
Selected format:Glass—Resistance to attack by a boiling hydrochloric acid—gravimetric method of test and classification
WITHDRAWN published on 24.10.1995
Selected format:Torque wrench—General requirements
WITHDRAWN published on 24.10.1995
Selected format:Determination of thermal stability of coal
WITHDRAWN published on 12.11.2001
Selected format:Latest update: 2024-09-27 (Number of items: 2 350 600)
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