ISO 11400:1992 Preview

Nickel, ferronickel and nickel alloys -- Determination of phosphorus content -- Phosphovanadomolybdate molecular absorption spectrometric method

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
  • :
    ISO/TC 155
    Nickel and nickel alloys
  • 77.120.40
    Nickel, chromium and their alloys
    77.100
    Ferroalloys

Buy this standard

Format Language
PDF
Paper
  • CHF38

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information

 Subscribe