ISO 15839:2003描述了水在线传感器/分析设备的性能测试。该标准适用于大多数传感器/分析设备，但人们认识到，对于某些传感器/分析设备，某些性能测试不能进行。本国际标准 定义用于水质测量的在线传感器/分析设备；定义描述在线传感器/分析设备性能特征的术语；规定用于评估在线传感器/分析设备性能特征的测试程序（实验室和现场）。

ISO 15839:2003 describes the performance testing of on-line sensors/analysing equipment for water. The standard is applicable to most sensors/analysing equipment, but it is recognized that, for some sensors/analysing equipment, certain performance tests cannot be carried out. This International Standard

1. defines an on-line sensor/analysing equipment for water quality measurements;
2. defines terminology describing the performance characteristics of on-line sensors/analysing equipment;
3. specifies the test procedures (for laboratory and field) to be used to evaluate the performance characteristics of on-line sensors/analysing equipment.