Methods for chemical analysis of melted welding fluxes . the permanganate photome tric method for determination of manganese oxide content 熔炼焊剂化学分析方法.高锰酸盐光度法测定氧化锰量
Through the tests of standard samples , the degree of affecting permanganate index by these 5 factors are investigated 通过环境标准样品的分析试验，考察这5个因素对高锰酸盐指数的影响程度。
Test method for determination of manganese in manganese ores by pyrophosphate complexed permanganate potentiometric titrimetry 用焦磷酸络合高锰酸盐电势滴定分析法测定锰矿石中锰含量的标准试验方法
Abstract : if you want to get exait and reliable determination value of permanganate index , it must carry on quality control and data processing 文摘:在环境水的测定中欲得到可靠和准确的高锰酸盐指数测定值，就必须进行质量控制和数据处理
The performance and influencing factors of the combined process and the mechanism of ppc enhanced biofilter for pollutants removal had been investigated with various experimental technologies 实验考察了高锰酸盐预氧化与生物活性炭联用工艺的除污染效能。
The experiment on biofilter followed by preoxidation showed that ozone and ppc pretreatment improved the biodegradation of raw water , which enhanced the biofilm growth and bioactivity 高锰酸盐与臭氧预氧化均能够提高原水的可生化性,促进生物膜生长,提高生物活性。
This article discusses the acidic potassium permanganate method of permanganate index from the following aspects : heating time , titrate temperature and titrate speed , end point of titration 摘要文章对高锰酸盐指数加热时间、滴定温度、速度、滴定终点的控制进行了探讨。
According to the method ( 1 ) , bio - assessment criteria of bi for stream was preliminary determined , < 2 . 97 , excellent ; 2 . 98 - 4 . 72 , good ; 4 . 73 - 6 . 48 , good - fair ; 6 . 49 - 2 . 84 , fair ; > 与理化指标关系的分析表明，与总磷h 、化学需氧量codcr和高锰酸盐指数iinn有较高的相关性， r值分别为0 93 ， 0
The main factors influencing the accuracy of the determination of permanganate index , include acidity of sample , water distilled water quality , potassium permanganate concentration , water bath temperature and titration time 摘要影响高锰酸盐指数测定准确性的主要因素有样品酸度、蒸馏水水质、高锰酸钾溶液浓度、水浴加热温度和滴定时间。
In order to develop an environment - friendly method to form a chemical conversion film on aluminium surface without the toxic hexavalent chromium compounds , a process with sodium molybdate and potassium permanganate as the oxidants in the treating solution has been investigated 摘要采用钼酸盐、高锰酸盐作为成膜氧化剂，研究了铝合金化学转化膜的处理溶液，优化了溶液配方与工艺参数，在铝合金表面制备出有良好耐蚀性的转化膜。
