scope:

This part of ISO 12217 specifies methods for evaluating thestability and buoyancy of intact (i.e. undamaged) boats. Theflotation characteristics of boats 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 (A, B, C or D) appropriate to its design andmaximum total load. This part of ISO 12217 is principallyapplicable to boats propelled by human or mechanical power of 6 mup to 24 m hull length. However, it can also be applied to boats ofunder 6 m if they do not attain the desired design categoryspecified in ISO 12217-3 and they are decked and havequick-draining recesses which comply with ISO 11812. In relation tohabitable multihulls, this part of ISO 12217 includes assessment ofsusceptibility to inversion, definition of viable means of escapeand requirements for inverted flotation. This part of ISO 12217excludes: ? inflatable and rigid-inflatable boats covered by ISO6185, except for references made in ISO 6185 to specific clauses ofISO 12217; ? personal watercraft covered by ISO 13590 and othersimilar powered craft; ? gondolas and pedalos; ? sailingsurfboards; ? surfboards, including powered surfboards; ?hydrofoils and hovercraft when not operating in the displacementmode; and ? submersibles. NOTE Displacement mode means that theboat is only supported by hydrostatic forces. It does not includeor evaluate the effects on stability of towing, fishing, dredgingor lifting operations, which need to be separately considered ifappropriate.