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EFFECT OF HEAT AND AIR ON A MOVING FILM OF ASPHALT
As per ASTM D2872
(Rolling thin film oven test RTFOT)
MODEL P877


  • Double wall convection oven with the following inside dimensions 381 mm high, 483mm wide. 450mm deep, excluding plenum.
  • The door has a viewing window made of two sheets of heat resistant glass separated by an air layer
 
 
      
  • The oven is vented at the top and bottom. Bottom symmetric vents have 15cm2 opening area and top vents have 9.5cm2 Opening area.
  • This oven has an air plenum as described in ASTM D2872 specification. It is also provided with squirrel type fan for better heat uniformity.
  • The control panel includes electronic temperature regulator with digital display and setting at 163C 0.5C and a factory calibrated flow meter for adjusting airflow at 4000 mI/mm.
 
 
 
 
  • The oven has a built in 305 mm diameter vertical carousel to hold 8 glass sample containers rotating at 15 0.2 rpm. It is equipped with an air jet for blowing heated air into each bottle at its lowest point of travel.
  • Outlet orifice has a 1 mm diameter and is connected to a 7.6 m length copper tubing to heat up air. The apparatus is supplied with 8 glass containers and one thermometer ASTM 13C.
  • The instrument has an overheat protection.

 
 
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