devices to be installed in certified aircraft. It covers pallets, nets and containers intended for use with the following

classes of aircraft loading and restraint systems:

_ Class I: Unit load device restraint in conformity with all flight and ground load conditions, including 9g forward

emergency loading conditions.

_ Class II: All other unit load device restraints.

perishable cargoes in insulated standard airborne containers are kept in prime condition during the ground handling

and air transportation cycle for a maximum period of 36 h.

It is applicable to all insulated air cargo containers irrespective of their size and designation. It does not provide

details concerning refrigerated or heated containers and/or the methods and equipment used to obtain the required

thermal effect, such as cryogenic, gaseous or liquid fluids, or mechanical compressors/heaters.

NOTES

1 The term "perishable cargo" refers, for example, to dairy produce, fruit, vegetables, flowers, frozen foods, meat, fish, etc.,

requiring maintenance of specific temperature ranges during door-to-door transportation involving air transport.

2 It should be noted that throughout this document environmental (atmospheric) temperatures are expressed in commercial

values of degrees Celsius/Fahrenheit (°C/°F) and technical (scientific) temperatures are expressed in the International

Standard measure, kelvin (K). A temperature conversion table is given for convenience in annex A.

ISO 6517:2013 does not cover the performance requirements and ultimate load testing parameters for approval by airworthiness authorities (certification), which are covered in ISO 21100 or, for units approved prior to 2012, ISO 8097:2001. The design and operational testing requirements of ISO 6517:2013 are additional to those of these standards.

Aircraft Weight and Balance Manuals require non-certified containers be constructed then loaded in such a manner that neither the container nor its contents can become a hazard or damage the aircraft structure under flight conditions. Compliance with ISO 4118:2016 is one means of demonstrating compliance with these requirements.

Most sizes of containers covered by ISO 4118:2016 (base sizes K, L, P and Q) cannot physically be loaded and latched on aircraft main deck cargo systems. Base size A and M containers can, but are not allowed on aircraft main decks, which in general do not accept non-certified units. Accordingly, all containers covered by ISO 4118:2016 are intended to be used/installed exclusively in aircraft lower deck compartments

NOTE The metric equivalents for dimensions have been rounded up or down to the nearest millimetre, except in critical dimensions. Masses have been rounded up to the nearest kilogram and forces have been rounded up to the nearest 10 N. See introduction where it is deemed necessary to use exact values.