本文件规定了载重线长度不超过24 m的小艇上的水密和快速排水凹槽和驾驶舱的水密性、排水时间和门槛高度要求（见参考文献[1]）。 本文件涵盖了位于工艺高架部分的凹槽。 本文件未规定凹槽或驾驶舱的尺寸、形状和位置要求。它只考虑通过重力排水，而不是通过抽水或其他方法排水。 它只考虑了飞船的正常运行，但无人值守飞船休息室的问题超出了范围。 本文件不保证水密或快速排水凹槽或驾驶舱中的水不会影响ISO 12217（所有部分）:2015所涵盖的船舶稳定性和浮力。

This document specifies watertightness, draining time and sill heights requirements for watertight and quick-draining recesses and cockpits in small craft of up to 24 m load line length (see Reference [1]). Recesses located in elevated parts of the craft are covered by this document. This document does not specify requirements for the size, the shape and the location of recesses or cockpits. It only considers draining by gravity, and not by pumping or other methods. It only considers normal operation of the craft, but unattended craft recess issues are out of scope.

This document does not guarantee that the water contained in a watertight or quick-draining recess or cockpit will not affect the stability and buoyancy of the craft, which are covered by ISO 12217-1, ISO 12217-2 and ISO 12217-3.