RTFO Oven Verification Record
PTQM-FO-020.03 This test is crucial because it helps you investigate then predict HMA pavement behavior, longevity, and distress. So the engineer needs to do this test before constructing any pavement. So it is also essential to choose the high-quality RTFOT rolling thin film oven test equipment.
Ergon - Lubbock 14842
06/19/2024
RTFO Oven Verification Record
PTQM-FO-020.03: This test is crucial because it helps you investigate then predict HMA pavement behavior, longevity, and distress. So the engineer needs to do this test before constructing any pavement. So it is also essential to choose the high-quality RTFOT rolling thin film oven test equipment.
Verified By
Date
Calibration Equipment
ASTM 13C thermometer S/N:
Verified digital timer S/N:
Caliper S/N:
Level S/N:
Thermometer
Thermometer 13C Kessler S/N:
Distance from thermometer bulb to right side of the over (2 +/- 3/8 in)
Bulb level with carriage axis within 25 mm (1 in)
Apparatus
Rotation rate (15.0 +/2 0.2 RPM or 15 rev/60 +/- 0.8 sec)
Distance of air jet orifice to open end of sample container (6.4 +/- 0.8mm or 1/4 +/- 1/16in)
Flow meter standardized every 12 months (4000 +/- 100 mL/min)
Check horizontal axis of the bottles in the carriage level within +/- 1 degree)
Temp Controlling System
Temperature recovery time to 163 +/- 1 degree C within 10 minutes
Time to temp
Temp at 0.5 hr (C)
Temp at 1.0 hr (C)
Temp at 1.5 hr (C)
RTFO Maintenance
As needed
Grease the chain
Rinse the flow meter w/ Xylene & Acetone
Remove air nozzle and clean
Air orifice (0.965-1.067 mm)
Replace carriage bushing
Check that nozzle and bottle gap is 1/4 inches
Check fan bearing
Ensure that carriage is level according to T240
Action Recommended
Comments
Source: Ergon - Lubbock 14842 (Community Member)