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ISO 11400:2021 PDF
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Nickel, ferronickels and nickel alloys — Determination of phosphorus content — Phosphovanadomolybdate spectrophotometric method
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.
| Edition | 2021 |
|---|---|
| Published Date | 2021 |
| Published By | International Standardization Organisation |
| Page Count | 9 |
