prEN 13160-3

This document gives requirements and the corresponding test/assessment methods applicable to leak detectors based on the drop of the liquid level in the leak detection liquid reservoir. Leak detectors are intended to be used with double skin, underground or above ground, non-pressurized tanks designed for water polluting liquids.
The liquid leak detectors are usually composed of:
-  sensing device (liquid sensor);
-  evaluation device;
-  alarm device.