DANSK DSF/ISO/DIS 21173.2 PDF

The standard specifies the method and contents of the hydrostatic pressure test for pressure structures of submersibles. The standard is applicable to the hydrostatic pressure test for pressure structures of manned submersibles and unmanned submersibles, including continuous pressurization and depressurization tests, long-term static load and cycling external pressure tests. The pressure structure includes the pressure hull, its accessories (such as viewports, hatches and connectors) and buoyancy materials. The standard is not applicable to the hydrostatic pressure test for pressure structures of submarines and other submersibles parking or operating underwater for more than one week.