1.1本规范涵盖USCG II型海洋卫生装置或IMO MARPOL 73/78附件四流经处理装置的设计、制造、性能、操作、功能和测试，用于处理船舶正常服务期间产生的污水和灰水。本规范旨在供船上环境污染控制设备的购买者、设计者和制造商使用，以确定设备采购、设备使用和设计考虑的要求。 1.2该装置应能够满足表1中详述的关于船舶操作区域的出水要求。

1.1 This specification covers the design, manufacture, performance, operation, functioning, and testing of USCG Type II Marine Sanitation Device or IMO MARPOL 73/78 Annex IV flow through treatment device intended to process sewage and graywater generated during the ship's normal service. This specification is intended for use by purchasers, designers, and manufacturers of shipboard environmental pollution control equipment to determine the requirements for equipment purchase, equipment use, and design considerations. 1.2 The device shall be capable of meeting the effluent requirements detailed in Table 1 with respect to ship's operational area.