Water activity is a measure of the thermodynamic activity of a material in the presence of water vapour and is commonly used in the food industry. The DVS is an ideal way to measure the water activity of solid materials across a wide range of temperatures and can work with very small sample sizes.
Application Note 01: Validation of Relative Humidity using Saturated Salt Solutions | Request a copy
Application Note 60: Iso-activity Analysis of Phenol Crystals | Request a copy
Application Note 62: Water Activity (Aw) Measurements Using a Payne Cell with a Flux-Calibrated Membrane and DVS | Request a copy