Section 13
When condition to be treated as warranty
Where a contract of sale is subject to any condition to be fulfilled by the seller the buyer may waive the condition or elect to treat the breach of the condition as a breach of warranty and not as a ground for treating the contract as repudiated.
(2)
Where a contract of sale is not severable and the buyer has accepted the goods or part thereof, or where the contract is for specific goods the property in which has passed to the buyer, the breach of any condition to be fulfilled by the seller can only be treated as a breach of warranty, and not as a ground for rejecting the goods and treating the contract as repudiated, unless there is a term of the contract express or implied to that effect.
(3)
Nothing in this section shall affect the case of any condition or warranty the fulfilment of which is excused by law by reason of impossibility or otherwise.