The Tamson Freezing Point Tester (TFPT) has been developed for the automated determination of the freezing point of aqueous engine collant solutions, windscreen antifreeze liquids and de-icing fluids and the soldification point of industrial organic chemicals. The determination of the freezing point involves the determination of the time-temperature curve prior to freezing (cooling) and the determination of the horizontal or flattened portion of the freezing curve