粒度分析结果的表示.第6部分:颗粒形状和形态学的描述和数量表达

[中文适用范围]： 本部分 ISO 9276 规定了颗粒形状和形态描述及定量表示的规则和术语。为了更全面地描述颗粒或颗粒系统，可以将颗粒尺寸信息与其他信息结合使用，但在大多数情况下，颗粒尺寸信息不能被替代。对样品中所有颗粒的形状进行平均已被证明是无效的方法。除了颗粒尺寸分布外，还需要其他颗粒特性的分布（见 ISO 9276-1）。任何颗粒形状表示方法在技术应用中的相关性是其使用的决定因素。因此，本部分 ISO 9276 仅限于那些能够与工业应用中的物理性质相关联的方法。颗粒分析的目的是确定适用于特定应用的最合适的表征方法。这意味着需要深刻理解颗粒特性与宏观产品和工艺特性之间的关系（或至少拥有广泛的经验数据库）。形状和形态问题通常是三维问题，但由于图像分析方法的广泛使用，本部分 ISO 9276 中的大多数定义实际上是针对二维的。借助第 4 条中给出的评估标准，从第 5 条中的各种描述符和方法中导出了第 8 条中的最小形状描述符集，从而能够在第 6 条讨论的范围内直接比较不同的形状分析设备或方法。 [外文原描述]： ISO 9276-6:2008 specifies rules and nomenclature for the description and quantitative representation of particle shape and morphology. To achieve a more comprehensive description of a particle or particle system, particle size information can be used together with other information but, in most cases, the particle size information cannot be replaced. The averaging of shape over all particles in a sample has been shown to be an ineffective approach. Distributions of other particle characteristics are required in addition to particle size distributions (see ISO 9276‑1). The relevance, to technological applications, of any method of representing particle shape is the deciding factor in its use. Therefore this part of ISO 9276 is restricted to methods which can be correlated with physical properties in industrial applications. The aim of particle analysis is to determine the most appropriate characterization method for a particular application. This implies a profound understanding of the relationship between particle characteristics and macroscopic product and process properties (or at least a database of broad empirical data). Problems of shape and morphology would normally be three-dimensional problems, but most definitions in this part of ISO 9276 are in fact given for two dimensions because of the widespread use of image analysis methods.