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  • DIN 50451-1:2003-04

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    Determination of trace elements in liquids for use in semiconductor technology - Part 1: Determination of calcium, copper, gold, iron, potassium, silver and sodium in nitric acid by atomic absorption spectrometry

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  02-10-2023

    Language(s):  English, German

    Published date:  01-04-2003

    Publisher:  German Institute for Standardisation (Deutsches Institut für Normung)

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    Defines a method of determining traces in nitric acid of calcium, copper, gold, iron, potassium, silver and sodium, in concentrations ranging from 0,1 ng/g to 50 ng/g, by means of graphite-furnace atomic absorption spectrometry (AAS).

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    Document Type Standard
    Publisher German Institute for Standardisation (Deutsches Institut für Normung)
    Status Withdrawn

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