All of this can be answered though a “standard form contract”. This type of agreement is a contractual model that defines the conventional rules to refer to throughout the process of negotiating and signing the contract. They clearly indicate the transfer’s time and place, the transport risks from the seller to the buyer, as well as the transport costs, acessory operations and obligations.
The most knew and developed are the Incoterms 2000, defined by the International Chamber of Commerce (www.iccwbo.org).