DHI Ballast Water Testing Process
Testing ballast water management systems (BWMS) for type approval requires preparation by manufacturers.
DHI provides biological performance testing for type approval of ballast water management systems (BWMS) according to the requirements by the International Maritime Organization (IMO) and the United States Coast Guard.
DHI provides biological performance testing for type approval of ballast water management systems (BWMS) according to the requirements by the International Maritime Organization (IMO) and the United States Coast Guard.
The IMO flag state and the US authorities are represented by classification societies or independent laboratories. DHI performs type approval testing of BWMS in collaboration with three classification societies and independent laboratories that include DNV GL, Lloyd’s Register and Korean Register.
More than 20 manufacturers of BWMS have been testing their systems at DHI, and several have returned for type approval tests of new models or alternative filtration technologies. The value of DHI’s uncompromised independency is clear: the type approval testing is the sole independent verification of the biological treatment efficacy before the BWMS is purchased by ship-owners.
The biological performance test is not only providing the basis for the granting of type approval by authorities. The results of the test also document the technical properties, treatment capability and limitations of the system, which is valuable information for the ship-owner.
The type approval of BWMS is based on tests of treatment efficacy conducted at a land-based test facility and after installation of the BWMS on board a vessel.
DHI’s land-based test facility in Hundested, Denmark, is highly flexible, and five BWMS can be connected to the test facility at the same time. The land-based test facility includes one source tank with a volume of 750m³ and six retention tanks, each with a volume of 250m³, that permit parallel testing of BWMS. The main pump at the test facility operates with a flow rate of 200m³/h to 600m³/h.
DHI conducts shipboard tests on vessels all over the world. The large team offers the possibility to initiate shipboard testing with short notice and to meet changes in the vessel schedule.
DHI understands that time to market is of utmost importance for manufacturers seeking type approval of their BWMS. The duration of the type approval testing programme may exceed a year.
DHI is highly efficient in all steps the testing programme. Pilot testing is available to help set the performance claim of the BWMS, as well as the capacity for completing type approval testing, and the delivery of high-quality test reports according to the agreed timelines. DHI has completed a high amount of type approval tests according to US requirements.
DHI’s type approval tests of BWMS are performed in accordance with ISO 17025 and are accredited by the Danish Accreditation Fund.
Customers include BWMS manufacturers from Asia, Europe and North America. DHI’s ballast water team is truly international and includes several nationalities from Asia and Europe. DHI strives to deliver the best service to customers and the diversity of the team helps to do exactly that.
Testing ballast water management systems (BWMS) for type approval requires preparation by manufacturers.
Our Ballast Water Centre offers biological performance evaluation of ballast water management systems (BWMS) according to International Maritime Organization (IMO) and United States Coast Guard (USCG) standards.
DHI tested eight of the 15 ballast water management systems that received approval from the US Coast Guard.
6 February 2019The Silicon Valley Clean Water (SVCW) facility has selected DHI to carry out a feasibility study on the future implementation of advanced energy-efficient wastewater treatment processes in Redwood City, California, US.
4 February 2019The US Senate has approved the Vessel Incidental Discharge Act (VIDA) as part of the Congressional Record Senate, giving a new definition to the terms 'live' and 'living'.
28 November 2018The recently approved Vessel Incidental Discharge Act (VIDA) introduces a new definition of 'live' and 'living', which implies that the ability of organisms to reproduce is considered the key parameter in the assessment of whether an organism is alive or dead.
16 November 2018DHI has announced it will be presenting at the 2018 BWMTech Conference in London, UK.
13 November 2018DHI's ballast water centre in Denmark has received the US Coast recognition of Independent Laboratory (IL), in conjunction with Det Norske Veritas (DNV).
30 October 2014At our land-based test facility in Denmark, DHI have an optimal position to collect high-quality natural waters to prepare test waters with the salinities required in the IMO G8 guidelines, including freshwater.
30 October 2014The International Conference on Ballast Water Management is back for its seventh edition 5-7 November.
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