surrender of the Bill of Lading to Saia on shipments billed "To Order."-Payment of lawful charges to the carrier when required prior to delivery of the shipment. -Notification to Saia that vehicle is unloaded and ready for forwarding. -Signing of delivery receipt.
The release of contaminants that were originally retained by the filter medium. This usually happens due to increase in pressure or pressure fluctuation. Soft filtration media is more prone to unloading.