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ISO 11400:2021

Nickel, ferronickels and nickel alloys — Determination of phosphorus content — Phosphovanadomolybdate spectrophotometric method ISO 11400:2021

Publication date:   Dec 15, 2021

General information

60.60 Standard published   Dec 15, 2021

ISO

ISO/TC 155 Nickel and nickel alloys

International Standard

77.100   Ferroalloys | 77.120.40   Nickel, chromium and their alloys

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Scope

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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PREVIOUSLY

WITHDRAWN
ISO 11400:1992

NOW

PUBLISHED
ISO 11400:2021
60.60 Standard published
Dec 15, 2021