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Homepage>BS Standards>77 METALLURGY>77.100 Ferroalloys>21/30435759 DC BS ISO 11400. Nickel, ferronickels and nickel alloys. Determination of phosphorus content. Phosphovanadomolybdate spectrometric method
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21/30435759 DC BS ISO 11400. Nickel, ferronickels and nickel alloys. Determination of phosphorus content. Phosphovanadomolybdate spectrometric method

21/30435759 DC

BS ISO 11400. Nickel, ferronickels and nickel alloys. Determination of phosphorus content. Phosphovanadomolybdate spectrometric method

CURRENCY
LANGUAGE
English
Standard number:21/30435759 DC
Pages:16
Released:2021-05-12
Status:Draft for Comment
DESCRIPTION

21/30435759 DC


This standard 21/30435759 DC BS ISO 11400. Nickel, ferronickels and nickel alloys. Determination of phosphorus content. Phosphovanadomolybdate spectrometric method is classified in these ICS categories:
  • 77.120.40 Nickel, chromium and their alloys
  • 77.100 Ferroalloys

This document specifies a spectrophotometric method for the determination of the phosphorus content in nickel, ferronickels and nickel alloys between 0,000 5 % (by mass) and 0,05 % (by mass).

Arsenic, chromium, hafnium, niobium, silicon, tantalum, titanium and tungsten interfere, but the interferences can be avoided by complexation or volatilisation (for chromium). The lowest phosphorus content [0,000 5 % (by mass)] can only be reached in samples with low contents of these interfering elements.


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