Ocel a železo - Stanovení obsahu chromu - Metoda potenciometrické a vizuální titrace (Norma k přímému použití jako ČSN).

The information about the standard:

Designation standards: ČSN EN ISO 4937
Classification mark: 420517
Catalog number: 521018
Publication date standards: 1.5.2025
Approximate weight : 84 g (0.19 lbs)
Country: Czech technical standard
Kategória: Technické normy ČSN

Annotation of standard text ČSN EN ISO 4937 (420517):

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