标准摘要
[中文适用范围]： 本文件规定了电位滴定法或目视滴定法测定钢和铁中的铬的方法。该方法适用于铬质量分数在 \(0,25 \%\) 和 \(35 \% \) 之间的样品。如果存在钒，则目视滴定仅适用于含有少于 \(3 \mathrm{mg}\) 钒的试样。注意：目视滴定还可适用于含钒量在 \(3 \mathrm{mg}\) 到 \(6 \mathrm{mg}\) 之间的试样。 [外文原描述]： 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.
英文名称Steel and iron — Determination of chromium content — Potentiometric or visual titration method