To ensure that vessels’ hatch covers and other weather deck openings are watertight shipowners or other parties appoint a surveyor to conduct watertightness test. Thus, a hose test or ultrasonic watertightness analysis should be done in order to find out whether the hatch covers are watertight..
Watertightness testing is carried out on the two testing banks AEV of DH Cargo Survey for windows, doors and façades of until 4x4m. Watertightness is the capacity of a closed window to protect against water leaking. The test consists in a controlled static pressure applied across the sample and sprayin system can apply a continuous, regularly dispersed film of water all over the surface of the test section.