Subject to Approval of Sample Replacement. For instance, you cup the sample and it ‘fails’. You can then request a replacement. Your importer offers a new coffee that matches the quality and price stated in the contract.
Subject to Approval of Pre-Shipment Sample. Your importer draws a sample of a batch that has not shipped yet and sends it to you. You approve or reject on the basis of the pre-shipment sample.
Subject to Approval of Sample No Approval No Sale. A straight forward term. If you cup, and the quality does not match with the contract, the sale is canceled.