Standards GB - Chinese national standards - Page 6176

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GB/T 13884-1992 WITHDRAWN

Method for the determination of cobalt in feedstuffs—Atomic absorption spectroscopy

WITHDRAWN published on 24.11.1992

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GB/T 13884-2003 WITHDRAWN

Determination of cobalt in feed—Atomic absorption spectroscopy

WITHDRAWN published on 11.12.2003

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GB/T 13885-1992 WITHDRAWN

Method for the determination of the ironcoppermanganesezinc and magnesium in feedstuffs—Atomic absorption spectroscopy

WITHDRAWN published on 24.11.1992

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GB/T 13885-2003 WITHDRAWN

Animal feeding stuffs—Determination of thecontents of calcium,copper,iron,magnesium,manganese,potassium,sodium and zinc—Method using atomic absorption spectrometry

WITHDRAWN published on 1.11.2003

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