AFG Analytic GmbH products

The new CAS touch! Charge Analyzing System combines proven methods of particle charge measurement with the known great simplicity of handling and functioning of the previous CAS versions, but enhanced with new features and an immense reduction in weight and size.

The new FPA touch! Fiber Potential Analyzer. Accurate and easy determination of the zeta potential of fiber suspensions

The CAS particle charge measurement system takes traditional methods of measuring Streaming Potential and established a new era of technology and comfort in particle charge analysis. Using industry accepted techniques of titration CAS determines cationic/anionic and acid/base demands of aqueous charge systems. Both Streaming Potential (mV) and pH are measured simultaneous. Making it possible to easily determine isoelectric and flocculation points of a sample.

Surface charges of fibers, fillers, particles or colloidal dissolved matters in stock suspension are defined by the Zeta Potential on their surfaces. The charge of the stock suspension can be split into the colloidal and particle charge, measured with the CAS Charge Analyzing System, while the fiber and filler charge is measured with the FPA Potential Analyzer. All both charge levels together defining the overall Zeta Potential fiber suspensions. The knowledge of the fiber charges in the pulp is the key for optimized dosage of chemical aids which should adsorb on the fiber. The mostly negative (anionic) charged fiber adsorbing the positive (cationic) charged additives in the papermaking process. The optimized dosage of such aids always depends on the Zeta Potential within the pulp.

DFA Dynamic Filtration Analyzer determines quickly and accurately the influence of chemicals on the filtration characteristics of fiber suspensions by an automatic analysis of drainage and retention.