本文件规定了液化天然气软管加注系统的设计、最低安全、功能和标记要求，以及用于液化天然气加注船、油罐车、岸上设施和其他加注基础设施的干式断开/连接联轴器的接口类型、尺寸和测试程序。本标准不适用于ISO 16904中所述的用于硬负载臂的液压操作快速连接/断开耦合器（QCDC）。 基于本文件编制时工业制造中使用的技术，适用于DN 25至DN 200范围内的联轴器尺寸。

This document specifies the design, minimum safety, functional and marking requirements, as well as the interface types and dimensions and testing procedures for dry-disconnect/connect couplings for LNG hose bunkering systems intended for use on LNG bunkering ships, tank trucks and shore-based facilities and other bunkering infrastructures. It is not applicable to hydraulically operated quick connect/disconnect couplers (QCDC) used for hard loading arms, which is covered in ISO 16904. Based on the technology used in industrial manufacturing at the time of development of this document, it is applicable to sizes of couplings ranging from DN 25 to DN 200.