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 

  • Status
     :  Withdrawn
    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

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal:

9
Industry, Innovation and Infrastructure

Life cycle


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.

  2. Store
  3. Standards catalogue
  4. ICS
  5. 77
  6. 77.100
  7. ISO 11400:1992