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ISO 9441:1988

Steel — Determination of niobium content — PAR spectrophotometric method ISO 9441:1988

Publication date:   Dec 8, 1988

95.99   Withdrawal of Standard   Aug 3, 2026

General information

95.99   Withdrawal of Standard   Aug 3, 2026

ISO

ISO/TC 17/SC 1 Methods of determination of chemical composition

International Standard

77.080.20   Steels

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Scope

The method is applicable to types of steel with niobium contents between 0,005 % (m/m) and 1,3 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report. Annex A includes additional information on the international co-operative tests. Annex B gives a graphical representation of precision data.

Life cycle

NOW

WITHDRAWN
ISO 9441:1988
95.99 Withdrawal of Standard
Aug 3, 2026

REVISED BY

PUBLISHED
ISO 9441:2026




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