scope:

This part of ISO 12217 specifies methods for evaluating thestability and buoyancy of intact (i.e. undamaged) boats. Theflotation characteristics of craft susceptible to swamping are alsoencompassed. The evaluation of stability and buoyancy propertiesusing this part of ISO 12217 will enable the boat to be assigned toa design category (C or D) appropriate to its design and maximumload. This part of ISO 12217 is applicable to boats of hull lengthless than 6 m, whether propelled by human or mechanical power,except habitable sailing multihulls. Boats of hull length less than6 m which are fitted with a full deck and quick-draining cockpit(s)complying with ISO 11812 may alternatively be assessed using ISO12217-1 or ISO 12217-2 (for non-sailing and sailing boats,respectively), in which case higher design categories may beassigned. In relation to habitable multihulls, this part of ISO12217 includes assessment of susceptibility to inversion,definition of viable means of escape and requirements for invertedflotation. This part of ISO 12217 excludes: ? inflatable andrigid-inflatable boats covered by ISO 6185, except for referencesmade in ISO 6185 to specific clauses of ISO 12217; ? personalwatercraft covered by ISO 13590 and other similar powered craft; ?aquatic toys; ? canoes and kayaks; ? gondolas and pedalos; ?sailing surfboards; ? surfboards, including powered surfboards; ?hydrofoils, foil stabilized boats and hovercraft when not operatingin the displacement mode; and ? submersibles. NOTE Displacementmode means that the boat is only supported by hydrostatic forces.It does not include or evaluate the effects on stability of towing,fishing, dredging or lifting operations, which need to beseparately considered if appropriate.