ISO 11400:2021
Nickel, ferronickels and nickel alloys — Determination of phosphorus content — Phosphovanadomolybdate spectrophotometric method
- Standard No.
- ISO 11400:2021
- Release Date
- 2021
- Published By
- International Organization for Standardization (ISO)
- Latest
- ISO 11400:2021
- Scope
- This document specifies a spectrophotometric method for the determination of the phosphorus content in nickel, ferronickels and nickel alloys between 0,0005 % (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 [0,0005 % (by mass)] can only be reached in samples with low contents of these interfering elements.
ISO 11400:2021 Referenced Document
- ISO 1042 Laboratory glassware - One-mark volumetric flasks
- ISO 648 Laboratory glassware - Single-volume pipettes
ISO 11400:2021 history
- 2021 ISO 11400:2021 Nickel, ferronickels and nickel alloys — Determination of phosphorus content — Phosphovanadomolybdate spectrophotometric method
- 1992 ISO 11400:1992 Nickel, ferronickel and nickel alloys; determination of phosphorus content; phosphovanadomolybdate molecular absorption spectrometric method
