초록 ▼

A capillary tube viscometer is provided in which the viscosity of a fluid can be measured at a temperature above the normal boiling point of at least one component in the fluid. The fluid is heated to the desired temperature in a sealed viscometer which is constructed so as to withstand high pressur

A capillary tube viscometer is provided in which the viscosity of a fluid can be measured at a temperature above the normal boiling point of at least one component in the fluid. The fluid is heated to the desired temperature in a sealed viscometer which is constructed so as to withstand high pressure. The fluid is then allowed to flow through a capillary tube and the time required for the fluid to flow through the capillary tube is measured. The viscosity of the fluid is then calculated based on the Hagen-Poiseuille law.

대표청구항 ▼

A method for determining the viscosity of a fluid at a temperature above the normal boiling point of at least one component in the fluid comprising the steps of: placing said fluid in a first portion of a viscometer; pressure sealing said viscometer; heating said fluid to said temperature; orienting

A method for determining the viscosity of a fluid at a temperature above the normal boiling point of at least one component in the fluid comprising the steps of: placing said fluid in a first portion of a viscometer; pressure sealing said viscometer; heating said fluid to said temperature; orienting said viscometer in such a manner that said fluid flows through a capillary tube into a second portion of said viscometer; measuring the time required for a known volume of said fluid to flow through said capillary tube into said second portion of said viscometer; and determining the viscosity of said fluid at said temperature based on the time required for a known volume of said fluid to flow through said capillary tube into said second portion of said viscometer.