Comparative Testing of Polymer Solutions. Part I. Preliminary Evaluation of A Rheometrics Fluids Rheometer

摘要

A comparison round of testing was organized to provide DRES with a low viscosity secondary standard for the measurement of viscosity and first normal stress difference in steady shear. The current performance of the Rheometrics Fluids Rheometer, recently purchased by DRES, is compared with that of other Fluids Rheometers, with Weissenberg R-18 Rheogoniometers, with Instron Rotary Rheometers, and with concentric cylinder viscometers manufactured by Haake and Brookfield.