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Koehler K88011 Loss on Heat / Rolling Thin Film Oven

Rp. CALL
Update Terakhir
21 Sep 2021
Pembelian Min
1 unit

Spesifikasi Koehler K88011 Loss on Heat / Rolling Thin Film Oven

Specification


Conforms to the Specifications of: ASTM D2872; AASHTO T240


Features



  • Conforms to the specifications of: ASTM D2872; AASHTO T240


Test Method


Determines the effect of heat and air on a moving film of asphalt to serve as an indicator of approximate change in properties during conventional hot-mixing. The results are reported in terms of the changes in selected properties such as viscosity, penetration and ductility brought about by the RTFO test, as evidenced by test data taken before and after the 75 minute oven cycle.


Description


Double-walled electrically heated convection oven for rolling thin film oven tests on asphalts. Incorporates all required features per ASTM specifications, including: door with double-pane viewing window; symmetrical top and bottom vents; air plenum; squirrel cage-type 1725rpm fan; digital indicating thermostat to control oven temperature at 163°C ±0.5°C; vertical circular carriage to mechanically rotate the samples at 15 ±0.2rpm; air jets to blow heated air into each sample bottle at its lowest point of travel; and a calibrated flowmeter to control air flow at 4000mL/min. An overtemperature cut-off circuit disconnects power to the unit in the event of control failure.


Electrical Requirements


120V 60Hz

240V 50Hz

240V 60Hz


Additional Accessories



  • K88000-1 Glass Sample Container

  • 250-000-13C ASTM 13C Thermometer

  • K88000-2 Cooling Rack


Alat Laboratorium Umum


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