| 释义 |
equiviscous temperature equiviscous temperature[¦e·kwə¦vis·kəs ′tem·prə·chər] (chemical engineering) A measure of viscosity used in the tar industry, equal to the temperature in degrees Celsius at which the viscosity of tar is 50 seconds as measured in a standard tar efflux viscometer. Abbreviated EVT. equiviscous temperatureThe temperature at which a bitumen attains the proper viscosity for built-up roofing application. |