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Load Class

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.

Load Class Classifications
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