THE NEW ASTM D7891 standard will help users undertake shear testing using the Freeman Technology FT4 powder rheometer. ASTM, previously the American Society for Testing and Materials, issues technical standards that are used in the USA and also internationally. The…
Category: rheometry
Malvern opens São Paulo applications lab
MATERIALS characterisation instrument maker Malvern Instruments has opened a new applications and demonstration laboratory in Sao Paolo, Brazil. The new laboratory, located within the existing premises of its parent company Spectris, provides support to customers and joins the group’s other…
Better temperature control means better viscometry results
THE LATEST addition to RheoSense’s VROC (viscometer/rheometer-on-a-chip) family, the Microvisc TC, provides precise temperature control for the handheld Microvisc viscometer. Temperature dependence is one of the most important factors in determining viscosity, and a tiny variation can generate significantly errors…
Measure viscosity at high shear with E chip
MEASURING viscosity at high shear rates is a challenge with conventional instruments, as the instigation of turbulent or unstable fluid flow makes measurements unreliable. The standard way of dealing with this problem is to make multiple measurements, but this requires…
Better temperature control for rheometry and viscometry
AVAILABLE for use with Brookfield viscometers and rheometers, the new TC series circulating water baths offer a number of improvements over earlier models. All four models in the range offer a choice of digital or programmable controllers, boasting control heads…
Powder rheometer gets updated software
BROOKFIELD Engineering has updated the software for its Powder Flow Tester powder rheometer, used to determine material characteristics in industrial and laboratory operations. Powder Flow Pro v1.2 includes two new features, designed to improve the usefulness of the information generated…
Rotational viscometers determine dynamic viscosity
THE THREE models in Cole-Parmer’s new range of rotational viscometers are each designed to offer maximum chemical resistance, making them suitable for use with corrosive materials. Using spindles made of 316 stainless steel and sealed keypads, these instruments have a…
Viscosity measurement in tiny samples
A NEW viscosity test protocol from Rheosense demonstrates how it is possible to obtain accurate test measurements on samples as small as 20ul. The company says this is the the lowest sample volume requirement available, and is achieveable with its…
Free library of texture analysis notes
THE PREDICTION of food behaviour and texture is of great interest to the food industry, and can play a vital role in the success of a product. Those involved in this tricky type of analysis might be well advised to…