ISO 9276-5-2005 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

标准号：ISO 9276-5-2005
中文标准名称：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
英文标准名称：Representation of results of particle size analysis - Part 5: Methods of calculation relating to particle size analyses using logarithmic normal probability distribution
标准类型：A42
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：A42
国际标准分类号：19.120
适用范围：The main objective of this part of ISO 9276 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.