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ISO 11433:2020

Nickel alloys — Determination of titanium content — Diantipyrylmethane molecular absorption method

Nov 4, 2020

General information

90.60     Mar 5, 2026

ISO

ISO/TC 155

International Standard

77.120.40  

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Scope

This document specifies a molecular absorption spectrophotometric method for the determination of titanium content in nickel alloys.
The method is applicable to titanium contents between 0,3 % (mass fraction) and 5,0 % (mass fraction).
Molybdenum, if present in the alloy, can cause a high bias in the reported titanium value to the extent of 0,001 % Ti for every 1,0 % Mo.
NOTE 1 Evidence exists that extension of this method is possible for titanium contents down to 0,05 % (mass fraction).
NOTE 2 Modifications in the general method allow the determination of titanium in alloys containing tungsten and/or tantalum.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 11433:1993

WITHDRAWN
ISO 11433:1993/Amd 1:2013

NOW

PUBLISHED
ISO 11433:2020
90.60 Close of review
Mar 5, 2026