What is the primary purpose of chalk during container inspections?

The primary purpose of chalk during container inspections is to mark defects. When inspectors examine containers for structural integrity and compliance with safety standards, they often use chalk to highlight areas that show signs of wear, damage, or non-compliance. By marking these defects, inspectors ensure that they are easily identifiable for further analysis or repairs. This practice is crucial for maintaining safety standards in intermodal transport and ensuring that any issues are addressed before the container is put back into service. Marking defects serves to communicate the specific areas that require attention and helps maintain a clear record of any findings during the inspection process.