PPM(Processing ＆ Product Method)标准是指产品的加工过程和加工方法须符合特定环境标准的简称。随着环境与贸易联系日益密切,为保护环境而采取的措施往往会影响贸易,PPM标准便是其中之一。例如,美墨“金枪鱼案”便是因PPM标准(金枪鱼的捕捞方法)而引发的贸易争端。在乌拉圭回合谈判中,PPM标准引起了广泛关注,最终作为一种新的贸易壁垒规定在《技术贸易壁垒协议》(TBT协 The PPM (Processing & Product Method) standard refers to the abbreviation of the product’s processing and processing methods that must comply with specific environmental standards. As environmental and trade links become increasingly closer, measures taken to protect the environment often affect trade, and the PPM standard is one of them. For example, the US-US “tuna case” is a trade dispute triggered by the PPM standard (tuna fishing method). In the Uruguay Round negotiations, the PPM standard attracted wide attention and was finally stipulated as a new trade barrier in the Agreement on Technical Barriers to Trade (TBT Agreement).