ISO 20291-1:2021 PDF

Scope: This document specifies the design criteria and testing methods adequate to guarantee the ultimate strength and operational dependability of cargo restraint sling assemblies made of steel wire rope, with a 22,25 kN (5000 lbf) rated ultimate load capability, as can be used by the airline industry in order to restrain on board civil transport aircraft during flight, including the following: — cargo loaded and tied down onto airworthiness approved air cargo pallets, themselves restrained into aircraft lower deck, main deck or upper deck cargo systems and meeting the requirements of — 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, to be restrained onto aircraft structure attachment (tie-down) points. Two types of wire rope restraint slings are defined: a) type A: adjustable length restraint sling assemblies, including a tension retaining device and termination fittings attached to the wire rope end eyes; b) type B: fixed length restraint sling extensions, to be used in conjunction with a type A cable; extensions are usually terminated at both ends by eyes, without additional fittings, and can be attached through hooks or shackles. The cables specified in this document are intended exclusively for restraint purposes on board aircraft, and not for use as lifting slings.

ISO 20291-1:2021 Referenced Document

ISO 10254 Air cargo and ground equipment - Vocabulary
ISO 17893 Steel wire ropes — Vocabulary, designation and classification AMENDMENT 1
ISO 21100 Air cargo unit load devices — Performance requirements and test parameters
ISO 2408 Steel wire ropes - Requirements
ISO 4117 Air and air/land cargo pallets; specification and testing
ISO 4171 Air cargo equipment; interline pallets
ISO 4346 Steel wire ropes for general purposes; Lubricants; Basic requirements
ISO 7166 Aircraft; Rail and stud configuration for passenger equipment and cargo restraint
ISO 7531 Wire rope slings for general purposes; Characteristics and specifications
ISO 7597 Forged steel lifting hooks with latch, grade 8
ISO 8097 Aircraft - Minimum airworthiness requirements and test conditions for certified air cargo unit load devices
ISO 8793 Steel wire ropes; Ferrule-secured eye terminations
ISO 8794 Steel wire ropes — Spliced eye terminations for slings
ISO 9788 Air cargo - Double stud tie-down fittings - Design and testing requirements