English to Russian Bus/Financial Transport / Transportation / Shipping Measurement

in an airway bill regarding shipment of several boxes of piping material
weight 180 kg
dim wt 56 kg
Information available on http://www.canpar.com/shipping/dimensional_weight.shtml and on many other sites

Dimensional Weight

Dimensional Weight is a standard formula used throughout the freight industry that considers a package's density when determining charges. Transportation charges are based on the gross weight of the shipment or the dimensional weight of the shipment, whichever is greater. Simply put, dimensional weight is when the weight of a package is inappropriately less than the actual size of the package - like a box filled with inflated balloons!


When do Dimensional Weight charges apply?
When the actual weight of a package is less than the calculated dimensional weight, CANPAR and others in the industry will charge at the dimensional weight. CANPAR's "Dimensional Weight" is based on a minimum 10 pounds per cubic foot or 160 kilograms per cubic meter for CANPAR Ground Service and U.S. Southbound shipments and a minimum of 15 pounds per cubic foot or 240 kilograms per cubic meter for CANPAR Select shipments.

Need exact and proven term

Thanks
Спасибо