FoamScan® is designed to measure a liquid’s ability to generate foam by sparging a gas through the liquid. (Foamsspin: foaming by a propeller) It will also determine persistence of the generated foam by measuring variation in its volume, density, and drainage rate.

Liquid samples for FOAMSCAN® are placed in a sample chamber which can be thermostated (optional). A glass column equipped with several pairs of conductivity electrodes is fixed onto this chamber. Foam develops in the sample chamber (by sparging or stirring (Foamspin option) and rises into the glass column where it is viewed continuously by a video camera. Images from the video camera are captured by software along with conductivity measurements at each electrode. This data is used to calculate and plot foam volume and conductivity in real time.

Features
• All instrument operation are controlled by software which runs under Windows XP or Vista
• Minimum volume of liquid sample: 20ml
• Gas flow up to 500 cm3/min
• No correction factor
• Agitation speed (FOAMSPIN® option):up to 6000 rpm
• Device friendly and robust construction.

Measurements by FoamScan
Values measured and displayed in real time:
• Gas flow rate or speed of mixing (FOAMSPIN® option)
• Foam volume
• Volume of sample liquid remaining
• Foam conductance at four different foam heights
• Liquid fraction in the foam at four different foam heights

Values calculated in real time and displayed upon completion of the experiment:
• Volume of liquid trapped in the foam
• Foam density
• Bikerman index
• Volume stability of the foam
• Liquid stability of the foam
• Coefficient of expansion of the foam
• Foaming capacity
• Retention parameter (for the RUDIN test)