If the contract does not require the buyer to pay the price at any other specific time， he must pay it when the seller places either

　　the goods， or documents controlling their disposition， at the buyer‘s disposal as agreed in the contract. The seller may make payment a condition for handing over the goods or documents. The buyer， however， is not bound to pay the price until he has had an opportunity to examine the goods， except where the terms of the contract are inconsistent with the buyer being afforded such an opportunity (Article 58)。

　　Payment should be on the date fixed by the contract without the seller being required to request payment (Article 59)。

　　As regards taking delivery， Article 60 requires the buyer not only to do so， but to do everything which could reasonably be expected of him to enable the seller to make delivery.