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ISO 1409:2020

Plastics/rubber -- Polymer dispersions and rubber latices (natural and synthetic) -- Determination of surface tension

General information
Valid from 21.08.2020
Directives or regulations
None

Standard history

Status
Date
Type
Name
21.08.2020
Main
14.09.2006
Main
This document specifies two methods for the determination of the surface tension of polymer dispersions and rubber latices (natural and synthetic).
— Method A is the ring method (Du Noüy ring method).
— Method B is the plate method (Wilhelmy plate method).
Method A is suitable valid for polymer dispersions and rubber latices with a viscosity less than 200 mPa·s.
Method B is not suitable for polymer dispersions and rubber latices containing cationic surfactants.
Methods A and B are also suitable for prevulcanized latices and compounded material.
In case of dispute, the preferred method is method A (the ring method).
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