What is the appropriate method for cleaning dry dust and dirt acceptable to shippers for both dry-vans and open tops?

Sweeping is the appropriate method for cleaning dry dust and dirt that meets the acceptance criteria of shippers for both dry-vans and open tops. This method is effective for removing loose debris without the risk of damaging the container's surfaces. Additionally, it is a quick and efficient way to ensure that the container is prepared for loading, maintaining hygiene and compliance with shipping standards.

This approach is suitable because it does not introduce moisture, which could lead to rust or mold in certain container types. It also avoids the complications associated with using water or power washing, which may not be acceptable to some shippers due to potential residual moisture or pressure damage.

Using a cold high-pressure wash might seem effective but could actually cause harm to sensitive paint or finish surfaces, while hot high-pressure washing poses similar risks and could also leave residues or potential harmful impacts on the container's integrity. Declaring that no cleaning is required would not satisfy the need for preparation before loading, especially for the cargo’s safety and cleanliness.