kolloidse sooli eraldamine mittekolloidsest lahusest väikesi osakesi läbilaskva membraani abil, mis on läbimatu kolloidosakestele
the process of separating a colloidal sol from a colloid -free solution by a membrane permeable to all components of the system except the colloidal ones, and allowing the exchange of the components of small molar mass to proceed for a certain time
