本文件的目的是提供用于为35MPa重型氢气运输巴士和车辆加油的氢气分配系统的性能要求（其他压力是可选的）。本文件确立了安全重型氢气地面车辆加油的边界条件，例如用于为氢气运输巴士提供燃料的气态氢气燃料分配器的安全极限和性能要求。对于为轻型车辆加油，应使用SAE J2601。SAE J2601-2是一份基于性能的协议文件，也为加油系统制造商、气态氢动力重型运输巴士制造商和氢动力车队运营商提供了指导。 该加油协议适用于车辆CHSS综合容量大于10公斤的重型车辆，旨在支持公交巴士的所有实际容量。关于如何在车辆油箱存储系统中实现满油或100%充电状态（SOC），本文件不是规定性的。本文件是SAE J2601“轻型气态氢地面车辆的燃料协议”的独立文件，应单独使用。本文件中显示的燃料限值与车载燃料系统使用的燃料假设一致，如气态氢运输巴士制造商所提供的。

The purpose of this document is to provide performance requirements for hydrogen dispensing systems used for fueling 35 MPa heavy duty hydrogen transit buses and vehicles (other pressures are optional).This document establishes the boundary conditions for safe heavy duty hydrogen surface vehicle fueling, such as safety limits and performance requirements for gaseous hydrogen fuel dispensers used to fuel hydrogen transit buses. For fueling light-duty vehicles SAE J2601 should be used.SAE J2601-2 is a performance based protocol document that also provides guidance to fueling system builders, manufacturers of gaseous hydrogen powered heavy duty transit buses, and operators of the hydrogen powered vehicle fleet(s).This fueling protocol is suitable for heavy duty vehicles with a combined vehicle CHSS capacity larger than 10 kilograms aiming to support all practical capacities of transit buses. It is non-prescriptive in how to achieve a full fill or 100% state of charge (SOC) in the vehicle tank storage system.This document is an independent document from SAE J2601 “Fueling Protocols for Light Duty Gaseous Hydrogen Surface Vehicles” and should be used separately.The fueling limits shown in this document are harmonized with the fueling assumptions used for on-board fuel systems, as provided by gaseous hydrogen transit bus manufacturers.