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阐述了质量控制图在COD快速在线测定仪中的应用原理及其实现方法。利用在线测定仪提供的数据管理和质量控制图绘制功能,给现场管理人员提供了一种快速评定污水水质的工具,及一种简单的区分仪器测量问题和污水本身COD变化的判别规则,给出了判别规则及其结果的准确概率。该方法在实际使用中得到用户的好评。
The application principle and its realization method of quality control chart in COD rapid on-line analyzer are described. Utilizing the data management and quality control charting capabilities provided by the on-line oximeter provides the site manager with a quick tool for assessing the quality of the sewer water and a simple rule for distinguishing between instrument measurement and COD variation of the sewer itself, The exact probability of discriminating rules and their results. This method has been well received by users in actual use.