Norstrom offer two Variations for carrying out Water Meter Calibrations.

'Test Meter' Method

This involves the use of a pre-calibrated test meter which is connected into the plant water line via a calibration assembly.

'Calibrated Drum' Method

Where it is not possible to install a test point, the water meter may be tested by the use of a pre-calibrated 200ltr drum which is traceable back to local trading standards.