BSF Method (Bath-Substratum-Flow) and device for assessing the detersive and dispersant efficacy of surfactants, detergent coadjutants and detergent compositions for hard surfaces
Patent Nº: 2251269.
Priority Date: 15.10.2002
Method characterized in that the device consists of a vessel containing the washing bath fitted with a thermometer stirrer and orifice for the extraction of samples, a packed column containing the dirty substrate, a peristaltic pump, a thermostated water bath to ensure a constant temperature throughout the system and an agitator that homogenizes the washing bath.