There are various methods in use to determine the angle of repose for
non-cohesive solid bulk materials. The recommended test methods are listed below:
6.2.1 Tilting box method
This laboratory test method is suitable for non-cohesive granular materials with a grain
size not greater than 10 mm. A full description of the equipment and procedure is given in
2.1 of appendix 2.
6.2.2 Shipboard test method
In the absence of a tilting box apparatus, an alternative procedure for determining the
approximate angle of repose is given in 2.2 of appendix
2.