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Instruments for surface & interfacial science; formulation stability, emulsion & dispersion stability analysis, surface tension, contact angle, zeta potential of solids, fibers, & powders, wettability, drop shape analysis, critical micelle concentration analysis of surfactants, ASTM methods for surface tension by Tensiometer using Wilhelmy Plate & DuNouy Ring, surface energy of solids, wettability with microliter, nanoliter, and picoliter-size droplets; MS20 MultiScan for emulsion & dispersion, Contact Angle Goniometers, Force Tensiometers, Spinning Drop Tensiometer for ultra-low interfacial tension, Zeta Potential Analyzers plus contract testing services available at our Charlotte, NC, and New York City laboratories.