外贸实务 Chapter 4.ppt

Chapter 4Quantity of Commodity *A Brief Introduction 1. The Concept of Quantity of Commodity 2. Common Systems of Measurement and Measuring Units 3. The Calculation of the Weight 4. The Stipulation of Quantity Allowance 5. Examples of Quantity Clauses *A Brief Introduction Any business deal consists of a certain quantity of goods supplied by the seller and a certain sum of money paid by the buyer. Without a certain quantity of goods, any business deal would be groundless. Thus, quantity clause is one of the essential terms and conditions for the conclusion of a transaction in the contract. Importance of Quantity United Nations Convention on Contracts for International Sale of Goods ( CISG,《联合国国际货物销售合同公约》) requires that the quantity of goods delivered should be identical to that called for in the contract, otherwise the buyer is entitled to reject the portion of goods excessive in quantity, and to claim against the seller if the quantity is found to be less than that called for in the contract. 合理约定商品数量的重要性： 《联合国国际货物销售合同公约》第35条规定：按约定的数量交付货物是卖方的一项基本义务。若卖方提交的货物数量大于合同约定的数量，则买方可以拒收多交的部分；若卖方交货不足，则应在规定的交货期内补足，并赔偿买方可能的损失。 1. The Concept of Quantity of Commodity Definition: The quantity of commodity refers to the weight, number, length, volume, area, capacity, etc. which are indicated by different measuring units. It is greatly important for trader to know the units of measurement in different systems and the way how they are converted into another. Because different countries have different systems on calculating units such as length, capacity and weight, the units of measurement vary from a country to another. For example the same unit of measurement may represent different quantities. 2. Common Systems of Measurement and Measuring Units 2.1 System of Measurement The commonly used systems in the world are the Metric System, the British System and the U. S. System. 2.2 Measuring Units 2.2 Measuring Units What unit of measurement should be chosen i