Standards GB - Chinese national standards - Page 5502

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

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GB/T 11065.2-1989 WITHDRAWN

Samarium-europium-gadolinium concentrates--Determination of samrium oxide,europium oxide,gadolinium oxide,ytterbium oxide contents--Chromatographic separation with p507 extraction resin and DTPA titrimetric method

WITHDRAWN published on 31.3.1989

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GB 11065.3-1989 WITHDRAWN

Samarium-europium-gadolinium concentrates - Determination of samarium oxide, europium oxide, gadolinium oxide contents - X ray fluorescence spectrometric method

WITHDRAWN published on 1.1.1989

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GB/T 11065.3-1989 WITHDRAWN

Samarium-europium-gadolinium concentrates --Determination of samarium oxide,europium oxide,gadolinium oxide and ytterbium oxide contents --X-ray fluorescenae spectrometic method

WITHDRAWN published on 31.3.1989

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