本文件旨在提供一般使用要求、建议和计算方法，以确保在飞行期间约束民用运输机上货物的系紧/捆扎装置的有效性和极限载荷强度: a） 装载并系在适航批准的空运货盘上的货物，其本身被限制在符合ISO 8097（NAS3610）或ISO 21100批准的空运货盘限制要求的飞机下层甲板或主甲板或上层甲板货物系统中，或 b） 当托盘最大总质量或重心限制要求时，飞机结构上的附加系紧，或 c） 非单元化单件货物，或放置在不受限制（“浮动”）托盘上的货物，放入飞机的下层甲板、主甲板或上层甲板集装箱货舱，或 d） 在非集装箱（散装）行李或货舱中装载的单个货物。 本文件适用于仅使用符合ISO 16049的航空货物约束带的货物系紧/捆扎装置- 1.其一般建议也可用于使用其他方式（例如钢缆、绳索、其他类型的皮带）的系紧装置，但用户应负责其充分性和所需的强度计算。 注1:如果按照上述b）或c）对飞机结构进行系紧，可在飞机当局批准的重量和平衡手册中说明额外限制。 注2:使用链条、杆或其他刚性装置系紧民用运输飞机地板轨道，这可能会在飞机结构中产生过大应力，不属于本文件的范围。 本文件旨在提供行业认可的方法，以遵守适航当局适用于民用运输飞机上载荷固定的一般要求（见CCAR-25、JAS第3部分、14 CFR第25部分和EASA CS-25），以及飞机制造商当局批准的每种飞机类型的重量和平衡手册，如本文件所述。本文件的目的不是说明何时应使用约束带，而是说明如何使用约束带。 满足本文件的方法要求并不足以确保飞行安全: 本文件基于这样一种假设，即货物系紧将在飞机起飞前由经过适当培训的合格人员，如ISO 9001:2015，6.2.2（见第8条）所定义的人员，按照符合相关飞机重量和平衡手册的适当操作说明进行设计、执行和检查。

This document aims at providing general utilization requirements and recommendations and calculation methods adequate to guarantee the effectiveness and ultimate load strength of tie-down/lashing arrangements performed to restrain cargo on board civil transport aircraft during flight: a) cargo loaded and tied down onto airworthiness approved air cargo pallets, themselves restrained into aircraft lower deck or main deck or upper deck cargo systems meeting the restraint requirements of air cargo pallets approved in accordance with ISO 8097 (NAS3610) or ISO 21100, or b) additional tie-down on aircraft structure when necessitated by pallet maximum gross mass or centre of gravity limits, or c) non-unitized individual pieces of cargo, or pieces of cargo placed onto an unrestrained ("floating") pallet into either lower deck, main deck or upper deck containerized cargo compartments of an aircraft, or d) individual pieces of load loaded in non-containerized (bulk loaded) baggage or cargo compartments. This document applies to cargo tie-down/lashing arrangements using exclusively air cargo restraint straps conforming to ISO 16049-1. Its general recommendations may also be used for tie-down arrangements using other means (e.g. steel cables, rope, other types of straps), but under the user's responsibility as to their adequacy and the strength calculations required. NOTE 1 Where tie-down is performed onto aircraft structure as per b) or c) above, additional restrictions can be stated in the aircraft's Authority approved Weight and Balance Manual. NOTE 2 The use of chains, rods, or other rigid devices for tie-down onto civil transport aircraft floor tracks, which can generate excessive stress in the aircraft structure, is not part of the scope of this document. This document aims at providing industry recognized means of complying with Airworthiness Authorities general requirements applicable to load securing on board civil transport aircraft (see CCAR-25, JAS Part 3, 14 CFR Part 25 and EASA CS-25), and aircraft manufacturers Authority approved Weight and Balance Manuals for each aircraft type as specified therein. It is not the intent of this document to specify when restraint straps should be used, but how they should be used. Meeting the methods requirements of this document is not alone sufficient to ensure flight safety: this document is based on the assumption that cargo tie-down will be designed, performed, and checked prior to aircraft departure in accordance with appropriate operating instructions conforming to the Weight and Balance Manual of the aircraft concerned, by competent, suitably trained, personnel as defined for example in ISO 9001:2015, 6.2.2 (see Clause 8).