ASTM D2171/D2171M-2018 《Standard Test Method for Viscosity of Asphalts by Vacuum Capillary Viscometer》 Related products

ASTM D2171/D2171M-2018 Standard Test Method for Asphalt Viscosity by Vacuum Capillary Tubing Viscosity Meter is a standard developed by the American Society for Testing and Materials (ASTM) to determine the apparent viscosity of asphalt binders. This method is suitable for materials with a viscosity range of 0.0036 to more than 20,000 Pa · s at 60 ° C (140 ° F). The apparent viscosity is calculated by measuring the flow time of asphalt at the specified temperature with a vacuum capillary tubing Viscosity meter. The suitability of this method for modified asphalt or non-newtonian fluids needs to be carefully evaluated because its viscosity may vary with shear rate. The standard emphasizes the importance of operator competence, equipment calibrating and maintenance to the accuracy of results, and reminds users of the safe use of hazardous substances such as mercury.