In the supply chain, a Bill of Lading Ton (B/L Ton) refers to a unit of measurement used to calculate freight charges for certain types of cargo. It represents the weight or volume of goods that can be transported within one ton of cargo. The B/L Ton is commonly used for bulk shipments, such as grain, coal, or oil, where the freight charges are determined based on the quantity of cargo that can be loaded or discharged in one ton. It provides a standardized method for determining the transportation costs associated with these types of shipments.