标准摘要
[中文适用范围]: 本部分 ISO 29042 规定了一种基于示踪剂技术的方法,用于测量安装在机器上的排气系统的捕集效率。它适用于所有类型的测试环境——测试台、房间或现场(见 ISO 29042-1),但仅适用于示踪剂表现出与真实污染物相当的空气动力学行为的情况。排气系统捕集效率的测量可用于:a) 评估机器排气系统的性能;b) 评估排气系统的改进;c) 比较设计相似的机器的排气系统;d) 根据捕集效率对排气系统进行排名;e) 确定达到给定捕集效率水平的排气系统空气流量;f) 确定机器排气系统在捕集效率方面的先进水平。 [外文原描述]: ISO 29042-4:2009 specifies a method based on a tracer technique for measuring the capture efficiency of an exhaust system installed on a machine. It is applicable to all types of test environment — test bench, room or field (see ISO 29042-1) — but is only applicable if the tracer shows aerodynamic behaviour comparable to that of the real pollutant.
英文名称Safety of machinery — Evaluation of the emission of airborne hazardous substances — Part 4: Tracer method for the measurement of the capture efficiency of an exhaust system