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prEN ISO 4935

Steel and iron - Determination of sulfur content - Infrared absorption method after combustion in an induction furnace (ISO/DIS 4935:2025)

Publication date:   Nov 13, 2025

General information

45.99   Dispatch of FV draft to CCMC   Sep 7, 2026

CEN

CEN/TC 459/SC 2 Methods of chemical analysis for iron and steel

European Norm

77.040.30   Chemical analysis of metals

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Scope

The method is applicable to sulphur contents between 0,002 % (m/m) and 0,10 % (m/m). Specifies principle, reagents and material, apparatus, sampling, procedure, expression of results and test report. Annex A gives additional information on the international cooperative tests. Annex B represents the precision date graphically. Annex C deals with induction furnaces and infrared sulfur analysers.

Life cycle

PREVIOUSLY

PUBLISHED
EN 24935:1991

NOW

IN_DEVELOPMENT
prEN ISO 4935
45.99 Dispatch of FV draft to CCMC
Sep 7, 2026