Standards GB - Chinese national standards - Page 5408

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 8152.15-2021

Methods for chemical analysis of lead concentrates—Part 15:Determination of soluble lead content—Flame atomic absorption spectrometry

Standard published on 21.5.2021

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GB/T 8152.16-2022

Methods for chemical analysis of lead concentrates—Part 16: Determination of calcium oxide content—Flame atomic absorption spectrometric method

Standard published on 9.3.2022

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GB/T 8152.17-2023

Methods for chemical analysis of lead concentrates—Part 17 Determination of aluminummagnesiumironcopperzinccadmiumarsenicantimonybismuth and calcium contents— Inductively coupled plasma atomic emission spectrometry

Standard published on 23.5.2023

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GB/T 8152.17-2023E

ethods for chemical analysis of lead concentrates—Part 17:Determination of aluminum, magnesium, iron,copper, zinc, cadmium, arsenic, antimony, bismuth and calcium contents—Inductively coupled plasma atomic emission spectrometry

Standard published on 23.5.2023

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GB/T 8152.2-2006

Methods for chemical analysis of lead concentratesDetermination of lead contentBack titration of EDTA after precipitation of lead sulfate

Standard published on 24.8.2006

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