GB/T 32671.1-2016 in English

《GB/T 32671.1-2016胶体体系 zeta电位测量方法 第1部分：电声和电动现象》由TC279（全国纳米技术标准化技术委员会）归口，主管部门为中国科学院。

Scope

This part of GB/T 32671 specifies the method for measuring zeta potential in heterogeneous systems such as dispersion systems, emulsions, and porous materials containing liquid dispersion media, using electrical and acoustic methods. This method does not limit the zeta potential value and the mass fraction of the dispersed phase, and is suitable for dilute and concentrated systems; the particle size and pore size are limited to microns or smaller, and the geometric shapes of particles and pores are not limited. This section does not cover the zeta potential measurement method on the plane. The liquid dispersion medium can be a water phase, or a non-aqueous phase with any liquid conductivity, dielectric constant or chemical composition; the particles themselves can be conductive or non-conductive; the electric double layer can be separated or overlapped, the double electric There is no limitation on the thickness or other properties of the layers. This section applies to linear effects in the electric field and assumes that the surface charge is uniformly distributed along the interface. This standard does not apply to effects associated with soft surface layers containing space charge distributions.