ISO-11400 › Nickel, ferronickels and nickel alloys - Determination of phosphorus content - Phosphovanadomolybdate spectrophotometric method

ISO-11400 - 2ND EDITION - CURRENT
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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 volatilization (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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77.100 (Ferroalloys Including classification, designation, sampling, chemical analysis, etc.)

77.120.40 (Nickel, chromium and their alloys)

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Document Number

ISO 11400:2021

Revision Level

2ND EDITION

Status

Current

Publication Date

Dec. 1, 2021

Committee Number

ISO/TC 155