We offer tailor-made design of environmental technology verification and testing

Always available 

We strive to be your competent partner in relation to environmental evaluations supporting decisions in relation to product development and exiting products, marine production processes, and chemical mixtures and substances.

We offer independent consultancy and testing by use of a modern outdoor test facility and a well-equipped environmental laboratory. DHI’s services comply with ISO 9001 (Quality Management), and we provide a versatile range of tests accredited in accordance with ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories).

Our staff are eager to listen to and discuss your needs within technology performance verification, type approval testing of ballast water management systems, chemical mixtures and substances, or any other activity occurring in the environment and where an independent evaluation is needed. 


Smart ballast water management systems treat ballast water with minimal holding time


DHI performs  independent biological efficacy testing of BWMS for approval under IMO and US Coast Guard


Commissioning testing provides an assessment of the BWMS’ efficacy


Type-approval test provides an assessment of the ballast water management system in challenge and natural environment


See how filter testing can validate performance of your system​


DHI Lab Products offers a wide range of pigment standards, C14-ampoules, filtration equipment and analytical services


See how DHI tackles difficult question on toxicology of produced water from oil & gas rig

Global footprints 

Type approval testing of ballast water management systems. Seventeen of the 30 type approvals granted by the United States Coast Guard have been based on testing conducted by DHI (September 1, 2020). DHI’s customers include more than 25 BWMS manufacturers from 16 countries.