When measuring contact angles or making surface tension measurements with a pendant drop, selecting the correct tip or needle for your liquid is crucial.
Surface tension is a quantitative measure that can be correlated with a solution’s ability to remove dirt.
Surface tension and wettability are important physical properties that play a significant role in the effectiveness of agrochemicals.
The method to calculate the surface tension component is defined in ISO 19403-5:2017 standard.
Surface tension can be measured with force tensiometer using Du Noüy ring or Wilhelmy plate. Or with optical tensiometer using the pendant drop method.