ISO 9031:1987

Air cargo equipment — Handling systems for unit load devices (ULDs) — Symbols for pictorial representation

The symbols given herein are applicable to all aircraft cargo-handling systems for underfloor as well as for main-deck systems. The conveyance, guidance, restraint, power drive unit and the degree of automation for the total cargo-handling system can be depicted using the symbols. Each cargo symbol consists of a basic symbol, which represents basic functions. It characterizes a component function, but not the detail design and manufacturing method.