本文介绍了一种用于水处理厂分析方法比较（等效性）测试的统计设计实验。该设计考虑了常规水质测定中最常遇到的变量。讨论了该设计在水处理厂实际运行条件下的应用，并对实例数据进行了详细的统计分析。通过该设计获得的单个分析员精度估计值可能反映了在任何水处理厂遇到的结果。包括5个参考文献、表格。

A statistically designed experiment for comparison (equivalency) testing of analytical methods used in water treatment plants is described in this paper. The design takes into account the variables most often encountered in routine water quality determinations. Application of the design under actual operating conditions at water treatment plants is discussed and statistical analyses of example data are detailed. The estimates of single-analyst precision obtained with this design may reflect the results encountered at any water treatment plant. Includes 5 references, tables.