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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
Dysprosium oxide—Determination of lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, europium oxide, gadolinium oxide, terbium oxide, holmium oxide, erbium oxide thulium oxide, ytterbium oxide, luteclum oxide and yttrium oxide contents—Inductively coupled plasma atomic emission spectrographic method
WITHDRAWN published on 5.6.2000
Selected format:Holmium oxide—Determination of lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, europium oxide, gadolinium oxide terbium oxide, dysprosium oxide, erbium oxide, thulium oxide, ytterbium oxide, lutetium oxide and yttrium oxide contents—Inductively coupled plasma atomic emission spectrographic method
WITHDRAWN published on 5.6.2000
Selected format:Yttrium-europium oxide—Determination of lanthanum oxide, cerium oxide, praseodymium oxide, neodymium oxide, samarium oxide, gadolinium oxide, terbium oxide, dysprosium oxide, holmium oxide, erbium oxide, thulium oxide, ytterbium oxide and lutetium oxide contents—Inductively coupled plasma atomic emission spectrographic method
WITHDRAWN published on 5.6.2000
Selected format:Yttrium—Europium oxide—Determination of europium oxide content—Inductively coupled plasma atomic emission spectrographic method
WITHDRAWN published on 5.6.2000
Selected format:Yttrium—Europium oxide—Determination of europium oxide content—Fluorescent spectrophotometric method
WITHDRAWN published on 5.6.2000
Selected format:Rubber, raw synthetic—Determination of anti-degradants by high-performance liquid chromatography
WITHDRAWN published on 9.6.2000
Selected format:Methods of measurement for selective-calling and data equipment used in the mobile services
WITHDRAWN published on 7.6.2000
Selected format:Audio visual, video and television equipment and systems-Video tape leader and trailer for education and training applications
WITHDRAWN published on 7.6.2000
Selected format:Audio visual equipment and systems—Rating plates-Marking of electricity supply
WITHDRAWN published on 7.6.2000
Selected format:PAYTERMS—Abbreviations for terms of payment of international trade
WITHDRAWN published on 9.6.2000
Selected format:Latest update: 2024-09-27 (Number of items: 2 350 600)
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