Ballast Water Measurements

Discharge of ballast water is controlled by regulation. With Ballast Water Treatment (BWT) being the latest major regulation requirement, great efforts are made to prevent spread of contamination and transfer of aquatic species. The IMO Ballast Water Management Convention (BWM) states, that all vessels above a certain size and below a certain age, must implement, operate and ensure compliance with BWT in both a human health and performance aspect, according to the D2 and D3 standards. BWM implements the possibility to self-monitor by implementing measurement and testing equipment on board and recording periodic results of tests.


The World’s first real-time performance monitor for ballast water treatment systems.The bw monitor is permanently installed onboard. It measures and reports on the performance of filters and the biological efficacy of the disinfection unit.

The Ballast Water Management Convention was adopted on 13.02.2004 and ratified on the 08.09.2016. The aim of this convention was to prevent the spread of invasive aquatic species and pathogens, carried in the ballast water and sediments of ships, being discharged into the sea where they could harm local species and human health.

The FastBallast from Chelsea Technologies Group is a high accuracy, battery powered, portable Ballast Water Treatment (BWT) monitor, which can be used to determine whether or not the BWT on board is compliant in its performance.