粉类磁性金属物测定方法的改进

Improvement on the Methods of determination of the Powdery Magnetic Metals

国标GB5509-85《粉类磁性金属物测定方法》中有两种不同的测定方法:《磁性金属物测定器法》和《磁铁吸引法》。笔者通过对十种面粉用两种方法进行对比测定,认为将这两种测定方法结合在一起运用,能扬长避短,实际可操作性更强,更安全,定量更准确。

There are two different testing methods in the national standard GB5509 -85 《Methods for determination of magnetic metals content of flours》： ＂the method of magnetic metal testers＂ and＂ magnetism method ot： magnetic metals. ＂ Through comparison for ten flour samples with these two methods the author concluded that combination of these two methods could be more practical , save and accurate.