ISO 20998-2-2013 利用声学法测量和表征粒子特性.第2部分:线性理论指南

标准号：ISO 20998-2-2013
中文标准名称：利用声学法测量和表征粒子特性.第2部分:线性理论指南
英文标准名称：Measurement and characterization of particles by acoustic methods.Part 2: Guidelines for linear theory
标准类型：A42
发布日期：2013/8/15 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
引用标准：ISO 14488-2007;ISO 20998-1-2006
适用范围：This part of ISO 20998 describes ultrasonic attenuation spectroscopy methods for determining the size distributions of a particulate phase dispersed in a liquid at dilute concentrations, where the ultrasonic attenuation spectrum is a linear function of the particle volume fraction. In this regime, particle–particle interactions are negligible. Colloids, dilute dispersions, and emulsions are within the scope of this part of ISO 20998. The typical particle size for such analysis ranges from 10 nm to 3 mm, although particles outside this range have also been successfully measured. For solid particles in suspension,size measurements can be made at concentrations typically ranging from 0,1 % volume fraction up to 5 % volume fraction, depending on the density contrast between the solid and liquid phases,the particle size,and the frequency range.