What is the cleaning method for transferable dry dust unacceptable to shippers in dry-vans?

The cleaning method that is considered acceptable for removing transferable dry dust in dry-vans is sweeping. This method is effective because it allows for the collection of dust and debris without introducing moisture, which can sometimes cause issues with load contamination or equipment corrosion. Sweeping is a straightforward, low-impact cleaning method that helps ensure the cargo space is kept dry and clean, satisfying the shippers’ requirements for cleanliness and reducing the risk of contamination to future loads.

Other methods, such as high-pressure washing, could introduce water into the cargo area, which may not be suitable depending on the type of cargo that will be loaded afterward. High-pressure washing can also lead to additional issues, for instance, if water is not completely dried or if it leaves behind residues. Therefore, sweeping remains the preferred method for maintaining cleanliness in a manner that aligns with shippers' standards.