Being developed by Subcommittee E37.08 on Rheology, part of ASTM International Committee E37 on Thermal Measurements, ASTM WK43494, Test Method for Viscosity Calibration of Rotational Viscometers, will improve agreement of results between laboratories. Once approved, standard will be used by those in paint, petroleum, plastics, adhesive, and rubber industries, where standards already exist for rotational viscometry.
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