"This Standard aims at identifying the design criteria and testing methods adequate to guarantee the ultimate load and operational dependability of cargo restraint strap assemblies with a typical 22 250 N (5@000 lbf) rated ultimate tension load capability@ as used by the airline industry in order to restrain on board civil transport aircraft during flight: a. cargo loaded and tied down onto airworthiness certified air cargo pallets@ themselves restrained into aircraft lower deck or main deck cargo systems meeting the requirements of NAS 3610@ or b. non-unitized individual pieces of cargo@ or pieces of cargo placed onto an unrestrained (""floating"") pallet into either lower deck or main deck containerized cargo compartments of an aircraft. The same restraint strap assemblies can also be used in other applications such as: c. restraint of non-containerized (bulk loaded) baggage and cargo in aircraft compartments@ d. to ensure cargo restraint inside an airworthiness certified air cargo container. NOTE 1: The ultimate loads allowable on the attachment points available in most aircraft bulk compartments and inside most air cargo containers are significantly lower than 22 250 N (5@000 lbf). This results in the restraint arrangements ultimate load capability being dictated by the weakest element@ i.e.@ the attachment points; typical 22 250 N (5@000 lbf) ultimate load restraint straps will therefore be in excess of the allowable for such applications. This Standard describes the design criteria for individual restraint strap assemblies@ but does not intend specifying in any manner the way they are to be used aboard aircraft to ensure proper restraint throughout the certified flight envelope. Tie-down arrangements shall meet all the applicable requirements of the Airworthiness Authorities approved Weight and Balance Manual for the aircraft type or sub-type concerned@ particularly as regards@ but not necessarily limited to@ ultimate load factors to be taken into account to determine the number of straps to be used in each direction of restraint@ maximum angles to be observed with the direction of restraint@ minimum spacing of attachment points@ etc. When restraint strap assemblies are attached to the edge rails of a certified air cargo pallet meeting the requirements of NAS 3610@ operating instructions should duly take into account the restraint net attachment point locations on the pallet edge rail and other requirements defined by the appropriate NAS 3610 configuration drawing(s). The use of reliable and guaranteed restraint strap assemblies does not alone ensure flight safety: it also requires straps to be used and tie-down to be performed in accordance with operating instructions established by the aircraft manufacturer@ by competent@ suitably trained@ personnel. Subject to proper operating instructions as per 1.3 and 1.4 being defined and complied with@ using unit restraint strap assemblies manufactured to an adequate design and a tested ultimate load capability is nevertheless deemed necessary in order to ensure flight safety. General utilization guidelines 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 may be found in ARP5595 (or ISO 16049-2 equivalent)."