本powerpoint演示文稿首先概述了调查结果:100%报告发现空气中存在颗粒物 他们的制度；和 75%的颗粒物是通过 客户。提出了一种决策树方法 初步鉴定和棕色颗粒。演示摘要包括以下内容:最终报告是一本方法手册； 指导方法的决策树框架 选择和 技术与照片说明。包括数字。

This powerpoint presentation begins by presenting an overview of survey results: 100% reported finding particulate matter in their system; and, 75% of particulate matter was found by customers. A method decision tree is presented for initial identification and brown particles. Presentation summary includes the following: final report is a manual of methods; decision tree framework to guide method selection; and, techniques illustrated with photos. Includes figures.