应制订新的天然锰标准

China's Standard for Natural Manganese Dioxide Should be Revised

本文提出应修订我国现行的天然二氧化锰标准,以利指导开发低品位高活性的天然二氧化锰矿藏,充分利用有限资源。

China' s standard for natural manganese dioxide should be revised to guide the explo tation of natural manganese dioxide with low grade and high activity and make the best use of this lim ted natural resources.