简要介绍了标准的编制过程,针对无风管自净型排风柜的工作原理和性能特点,提出了该类产品应用的合理工作流程、需要控制的关键问题等;并且对无风管自净型排风柜的过滤效率、控制浓度和面风速等关键性能的测试方法进行了解读。 In this paper, the standard compilation process is briefly introduced. According to the working principle and performance characteristics of the self-venting fume hood without air duct, the reasonable workflow of the application of this kind of product, the key problems needing control and so on are put forward. Filter cabinet efficiency, control of concentration and surface wind speed and other key performance test methods were interpreted.