The line test for viscosity3/8/2024 ![]() Middle Mark #2 Top Mark #3 1 min 18 sec 4 min 25 sec Location Bottom Mark #1 Time (5) 0 Bulb B Fill 78 sec Time (#2 - #1) Bulb C Fill 265 Time (#3 - #2) ![]() ![]() Measure the time taken for the meniscus to pass between successive pairs of timing marks. Connect the vacuum with a 300=0.5 mm Hg below atmosphere suction to the end of the viscometer to start the flow of asphalt binder. Allow the viscometer to acclimatize in the bath for 30+5 minutes. Remove the Viscometer from the oven and within 5 minutes, insert the viscometer into the bath at 60+0.03☌. Viscometer Size Serial # 11 T157 - Place the charged (filled) viscometer in the oven at 135+5.5☌ for a period of 10=2 minutes to allow large air bubbles to escape. Fill with sample the clean dry Cannon-Manning Viscometer that will give a flow time greater than 60s and preheat viscometer to within +2mm of the fill line. ![]() Absolute Viscosity Test Procedure TIMING MARKS FILLING LINE Cannon-Manning Vacuum Viscometer -Maintain the bath at 60+0.03☌. ![]()
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