AS 3996 Clause 1.1 Scope
“This standard specifies requirements for access covers and grates for use in vehicular and pedestrian areas. It applies to access covers & grates having a clear opening of up to 1300mm...”
ACO believes that EN 1433: Drainage Channels for Vehicular and Pedestrian Areas, also provides a good measure of performance.
The load classes of both codes are shown in the table above.