The polymer containing fluid is passed through a diesel injector nozzle at a shear rate that causes the less shear stable polymer molecules to degrade. The resultant degradation reduces the kinematics viscosity of the fluid under test. The reduction in kinematics viscosity, reported as percentage loss of the initial kinematics viscosity, is a measure of the shear stability of the polymer containing fluid.
Apparatus Consists of:
Fluid reservoir
Capacity of 250 cm3, calibrated in 25 cm3 intervals
Double-plunger inj. Pump
Equivalent to BOSCH Model no PE 2 A 90C 300 / 3S2266
Electric motor
Three phase motor with 1.5 KW (2 HP) , 925 ± 25 rpm
Atomization chamber
Fluid cooling vessel
A glass container with exterior cooling jacket constructed
Stroke counter
6 digit pre-adjustable
Control panel
Houses temperature controller and presettable stroke counter
