本文件定义了船体长度（LH）或载重线长度（见注1）不超过24 m的单体小艇尺寸确定所需的尺寸、设计局部压力、机械性能和设计应力。根据ISO 12217评估稳定性、干舷和浮力时，本文件考虑了假定为水密或防风雨的所有船体部件。 注1:载重线长度在IMO《1966/2005国际载重线公约》中有定义，对于带有悬挑的船舶，载重线长度可以大于LH。该长度也设定为24米，是国际海事组织几项公约的下限。 本文件的主要核心部分确定了单壳的局部设计压力和应力，并详细说明了从这些压力和应力推导出的单壳和多壳的可能构件尺寸方法（见注2）。在相关情况下，评估过程需要应用附件。 本文件适用于以下两种类型的完整小型船舶: -休闲船，包括休闲租船； -小型商用船和工作船，见第12条和附件J。 它不适用于专为职业赛车设计的赛车。 注2:ISO 12215-7中给出了多壳体的局部压力和应力。 本文件适用于支撑窗户、舷窗、舱口、舷窗和门的结构。 对于船舶的完整尺寸，本文件拟与ISO 12215-8用于舵，ISO 12215-9用于附件，ISO 12215-10用于钻机荷载和钻机附件。 本文件涵盖由以下材料制成的小型工艺: -单层或夹层结构的纤维增强塑料； -铝或钢合金； -胶合木材或胶合板（单层或夹层），不包括传统木材结构； -船体长度小于6m的船舶用非增强塑料（见附录D）。 在本文件中，除非另有规定，否则尺寸单位为（m），面积单位为（m2），质量单位为（kg），力单位为（N），力矩单位为（N.m），压力单位为kN/m2（1 kN/m2=1 kPa），应力和弹性模量单位为N/mm2（1 N/mm2=1 Mpa）。Max（a；b；c）表示所需的值是a、b和c中的最大值；min（d；e；f）表示所需的值是d、e和f的最小值。

This document defines the dimensions, design local pressures, mechanical properties and design stresses for the scantlings determination of monohull small craft with a hull length (LH) or a load line length (see NOTE 1) of up to 24 m. It considers all parts of the craft that are assumed to be watertight or weathertight when assessing stability, freeboard and buoyancy in accordance with ISO 12217. NOTE 1 The load line length is defined in the IMO "International Load Lines Convention 1966/2005", it can be larger than LH for craft with overhangs. This length also sets up at 24 m the lower limit of several IMO conventions. The main core of this document determines the local design pressures and stresses for monohulls and details the possible scantlings methods derived from these pressures and stresses, both for monohulls and multihulls (see NOTE 2). The assessment process requires, where relevant, the application of Annexes. This document is applicable to small craft, in intact condition, of the two following types: — recreational craft, including recreational charter vessels; — small commercial craft and workboats, see Clause 12 and Annex J. It is not applicable to racing craft designed only for professional racing. NOTE 2 Local pressures and stresses for multihulls are given in ISO 12215-7. This document is applicable to the structures supporting windows, portlights, hatches, deadlights, and doors. For the complete scantlings of the craft, this document is intended to be used with ISO 12215-8 for rudders, ISO 12215-9 for appendages and ISO 12215-10 for rig loads and rig attachments. This document covers small craft built from the following materials: — fibre-reinforced plastics, either in single skin or sandwich construction; — aluminium or steel alloys; — glued wood or plywood (single skin or sandwich), excluding traditional wood construction; — non-reinforced plastics for craft with a hull length less than 6 m (see Annex D). Throughout this document, unless otherwise specified, dimensions are in (m), areas in (m2), masses in (kg), forces in (N), moments in (N.m), pressures in kN/m2 (1 kN/m2 = 1 kPa), stresses and elastic modulus in N/mm2 (1 N/mm2 = 1 Mpa). Max(a;b;c) means that the required value is the maximum of a, b, and c; and min(d;e;f) means that the required value is the minimum of d, e, and f.