通过对高锰酸盐指数测定原理和方法的探讨，分析在高锰酸盐指数测定过程中产生误差的原因。
According to the discussion on the principles and methods of permanganate index determination, the causes of making errors during the course of determination have been analyzed.
对GB 11892 - 1989《水质高锰酸盐指数的测定》中酸性高锰酸钾氧化法测定水中高锰酸盐指数的测量不确定度进行了评定。
The uncertainty of measurement was evaluated for the determination of permanganate index of water by the method of GB 11892-1989, the acidic potassium permanganate method.
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