粒度分析结果的表示.第5部分:使用对数正态概率分布的粒度分析相关计算方法

[中文适用范围]： ISO 9276 这一部分的主要目标是为遵循对数正态概率分布的累积粒度分布的表示提供背景，作为可以明确检查使用粒度分布函数执行的计算的方法。 解释了对数正态概率方格纸的设计，以及矩、中值直径、平均直径和体积比表面积的计算。 对数正态概率分布通常适用于表示任何维度的累积粒度分布。 它们的特殊优点在于这样的事实：累积分布，例如数量分布、长度分布、面积分布、体积分布或质量分布，都是由平行线表示的，其所有位置都可以根据任何位置的知识来确定。 一。 [外文原描述]： The main objective of ISO 9276-5:2005 is to provide the background for the representation of a cumulative particle size distribution which follows a logarithmic normal probability distribution, as a means by which calculations performed using particle size distribution functions may be unequivocally checked. The design of logarithmic normal probability graph paper is explained, as well as the calculation of moments, median diameters, average diameters, and volume-specific surface area. Logarithmic normal probability distributions are often suitable for the representation of cumulative particle size distributions of any dimensionality. Their particular advantage lies in the fact that cumulative distributions, such as number-, length-, area-, volume- or mass-distributions, are represented by parallel lines, all of whose locations may be determined from a knowledge of the location of any one.