ISO 13099的本部分规定了两种测量悬浮在液体中颗粒电泳迁移率的方法:视频显微镜和电泳光散射。表面电荷的估算和zeta电位的测定可以通过使用适当的理论模型测量电泳迁移率来实现，ISO 13099-1对此进行了详细描述。

This part of ISO 13099 specifies two methods of measurement of electrophoretic mobility of particles suspended in a liquid: video microscopy and electrophoretic light-scattering. Estimation of surface charge and determination of zeta-potential can be achieved from measured electrophoretic mobility using proper theoretical models, which are described in detail in ISO 13099-1.