产品的评定测试是发展新产品、提高产品技术水平和质量的重要环节。因此,国外把测试技术及测试标准放到相当主要的位置。在七十年代末到八十年代初,针对压缩空气干燥器迅速发展的情况,国外相应地制订了产品评定测试标准,下面介绍其中较有影响的两个标准。 Assessment of product testing is the development of new products, improve product technology and quality an important part. Therefore, the foreign test technology and test standards into a very important position. In the late seventies to the early eighties, compressed air dryers for the rapid development of the situation abroad developed a product evaluation test standards, the following describes one of the more influential two standards.