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ISO 4946:2016

Steel and cast iron — Determination of copper — 2,2'-Biquinoline spectrophotometric method

Publication date:   Feb 2, 2016

General information

90.20   Standard under periodical review   Jul 15, 2026

ISO

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

International Standard

77.080.01   Ferrous metals in general

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Scope

ISO 4946:2016 specifies a spectrophotometric method for the determination of copper in steel and cast iron by 2,2'-biquinoline.
The method is applicable to the determination of copper mass fraction in the range of 0,02 % and 5 %.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 4946:1984

NOW

PUBLISHED
ISO 4946:2016
90.20 Standard under periodical review
Jul 15, 2026