Gravimetric Permeability Measurements

In some applications, permeability measurements have to be produced gravimetrically - some formal standards demand this. Our Gravimetric permeability measurement system is designed to meet this need and is designed around a high quality solid acrylic water bath which reduces critical thermal losses.

For example, the instrument on the right involves a specialised acrylic water bath explicitly designed to comply with textiles standard ISO15496. This method is used for measuring water vapour permeability of permeable fabrics, and represents an alternative to instrumental techniques.

The accuracy of gravimetric testing is a function of time and partially a function of the care taken in preparing the samples.