ISO 17939:2015规定了船舶油箱舱口的分类、结构和主要尺寸、材料、制造质量、水密性测试和名称，以确保舱口的互换性。其余尺寸、焊接和其他细节由制造商决定。 这些舱口通常符合1966年国际载重线公约（ILLC66）的要求。ISO 17939:2015中的油密舱盖结构和规格符合IACS UR S26要求。 必须针对每种情况考虑在位置1和位置2使用的可能性，必要时，舱盖应配备额外的加强件。 ISO 17939:2015适用于舷梯的设计、制造和测试，以及与引航员舷梯（以下简称“引航员舷梯”）结合使用的舷梯。 ISO 17939:2015的用户应注意，在遵守ISO 17939:2015要求的同时，他们应确保遵守适用于相关船舶的法定要求、规则和条例。

ISO 17939:2015 specifies the classification, structure and main dimensions, materials, quality of manufacture, testing of watertightness and designation for oil tank hatches for application on board ships in order to ensure interchangeability of the hatches. The remaining dimensions, welding, and other details are left to the manufacturer. These hatches generally conform to the requirements of the International Convention on Load Lines 1966 (ILLC66). These structures and specifications of oil-tight hatch covers in this ISO 17939:2015 meet IACS UR S26 requirements. The possibility for application in position 1 and position 2 has to be considered for each situation and, where necessary, the hatch covers shall be provided with additional stiffening. ISO 17939:2015 is applicable to the design, manufacturing, and test of accommodation ladders, as well as accommodation ladder used specifically in combination with pilot ladder (hereinafter referred as "pilot accommodation ladder"). Users of ISO 17939:2015 should note that while observing the requirements of ISO 17939:2015, they should, at the same time, ensure compliance with such statutory requirements, rules, and regulations as may be applicable to the individual ship concerned.