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About This Item
Full Description
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.
Document History
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ISO 11400:2021
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Nickel, ferronickels and nickel alloys - Determination of phosphorus content - Phosphovanadomolybdate spectrophotometric method- Most Recent
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ISO 11400:1992
Nickel, ferronickel and nickel alloys - Determination of phosphorus content - Phosphovanadomolybdate molecular absorption spectrometric method- Historical Version