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Abstract Preview

Phosphorus content can be determined in the range of 0,000 5 % (m/m) to 0,05 % (m/m). As, Cr, Hf, Nb, Si, Ta, Ti, W interfere, but the interferences can be avoided. The principle is dissolution of a test portion in a mixture of nitric and hydrochloric acids, fuming with perchloric acid, removal of chromium, complexation of silicon, conversion of phosphorus to phosphovanadomolybdic acid, extraction of this compound.


General information

  • Status :  Published
    Publication date : 1992-09
  • Edition : 1
    Number of pages : 5
  • Technical Committee
    :
    ISO/TC 155
    Nickel and nickel alloys
  • ICS :
    77.100
    Ferroalloys
    77.120.40
    Nickel, chromium and their alloys

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  • CHF38

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Revisions / Corrigenda

  • Now confirmed
    ISO 11400:1992

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