Details: DuNouy Interfacial Tensiometer^ Provides reading of both surface and interfacial tensions by the ring method to values reproducible within -0.05 dyne/cm. 45Hx38Lx38Wcm. With torsion wire, 6cm platinum-iridium ring, alignment joint, case. For ASTM Methods D971, D1331, D1417, D1590.
