Access covers and grates shall be designated by classes A,B,C,D,E,F and G according to load capacity as set out in the table below. The design loads as specified below, shall be used for testing.
The appropriate class for a cover or grate depends upon the place of installation. Some place of installation,relative to class, are outlined below. The selection of the appropriate class is the responsibility of the designer and where there is doubt the stronger class shall be selected.