ISO 11400:1992
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ISO 11400:1992
19341

Abstract 

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 

  •  :  Withdrawn
     : 1992-09
  •  : 1
     : 5
  •  : ISO/TC 155 Nickel and nickel alloys
  •  :
    77.100 Ferroalloys
    77.120.40 Nickel, chromium and their alloys

Life cycle


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