NF EN 24937

NF EN 24937

September 1990
Standard Cancelled

Steel and iron. Determination of chromme content. Potentiometric or visual titration method.

The method is applicable to chromium contents between 0.25 % (m/m) and 35 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report. Annex A gives additional information on the international co-operative tests, and Annex B represents the precision data graphically.

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Main informations

Collections

National standards and national normative documents

Publication date

September 1990

Number of pages

9 p.

Reference

NF EN 24937

ICS Codes

77.080.01   Ferrous metals in general

Classification index

A06-329

Print number

1 - 01/09/1990

International kinship

ISO 4937:1986

European kinship

EN 24937:1990
Sumary
Steel and iron. Determination of chromme content. Potentiometric or visual titration method.

The method is applicable to chromium contents between 0.25 % (m/m) and 35 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report. Annex A gives additional information on the international co-operative tests, and Annex B represents the precision data graphically.

Standard replaced by (1)
NF EN ISO 4937
December 2024
Standard Current
Steel and iron - Determination of chromium content - Potentiometric or visual titration method

This document specifies a method for the determination of chromium in steel and iron by potentiometric or visual titration. The method is applicable to chromium contents between 0,25 % (mass fraction) and 35 % (mass fraction). If vanadium is present, the visual titration is applicable only to test portions containing less than 3 mg of vanadium. NOTE   The visual titration can be applicable to test portion containing between 3 mg and 6 mg of vanadium.

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