1.1本术语涵盖了通常不使用试验筛分析的颗粒材料的描述和分析程序中使用的术语的定义。这些术语与分析中使用的设备、待分析材料的物理形式以及选定的描述性数据简化和分析格式直接相关。 1.2颗粒和喷雾特性委员会E29认为，必须包括委员会明确的术语和定义 ’ s范围，无论这些术语是否出现在现有ASTM标准中。通常不包括常用术语和出现在通用语言词典中的术语，除非它们在不同于通用语言的粒子表征上下文中具有特定含义- 语言定义。 ====意义和用途====== 粒子表征方法生成的数据的解释和使用在很大程度上取决于描述该数据的术语的定义。在比较不同表征技术的数据时，甚至在关联相同技术的数据时，以完全相同的方式定义这些术语是极其重要的。 同样重要的是，粒子表征方法的用户以及由此产生的数据必须了解这些方法的原理，以便能够根据这些原理解释数据中的差异和相似之处。这种理解有助于避免在比较不同表征方法的数据时出现分歧。 本术语中包含的定义将有助于解释与生成该数据所用方法有关的颗粒表征数据。

1.1 This terminology covers the definitions of terms used in the description and procedures of analysis of particulate materials not ordinarily analyzed using test sieves. The terms relate directly to the equipment used in analysis, the physical forms of the materials to be analyzed, and selected descriptive data reduction and analysis formats. 1.2 Committee E29 on Particle and Spray Characterization believes that it is essential to include terms and definitions explicit to the committee ’ s scope, regardless of whether the terms appear in existing ASTM standards. Terms that are in common usage and appear in common-language dictionaries are generally not included, unless they have specific meanings in the context of particle characterization different from the common-language definitions. ====== Significance And Use ====== Interpretation and use of data generated by particle characterization methods is highly dependent on the definitions of terms describing that data. It is extremely important that those terms be defined in precisely the same way both when comparing data from different characterization techniques and even when correlating data from the same technique. It is likewise important that users of particle characterization methods and the data generated therefrom understand the principles of the methods, so that differences and similarities in the data can be interpreted in relation to those principles. That understanding can help to avoid disagreements when data from different characterization methods are compared. The definitions contained in this terminology will aid in the interpretation of particle characterization data with respect to the method(s) used to produce that data.