规定的方法适用于硫含量在00003%（m/m）和0010%（m/m）之间的情况。然而，铌、硅、钽和钛会干扰硫的测定，并且该方法的应用范围和试样质量取决于干扰元素的浓度。

The method specified is applicable to sulfur contents between 0,0003 % (m/m) and 0,010 % (m/m). However, niobium, silicon, tantalum and titanium interfere in the determination of sulfur, and application range and test portion masses of the method depend on the concentration of the interfering elements.