TM 10-6640-215-13 1-14. FUNCTIONAL DESCRIPTION OF PETROLEUM LABORATORY UNIQUE EQUIPMENT   - continued. I. Burnout Furnace.  The burnout furnace is used for ASTM tests D-482, D-874 and D-2276.  It is mounted on the roadside  countertop  and  operates  on  110V,  60Hz,  single-phase  power  supplied  by  A1CB12  located  in  the  MAIN POWER PANEL.  The furnace has a maximum operating temperature of 2000°F (1093°C), a capacity of six medium or three large flasks, eight heat rate settings to vary power to heating plates to accommodate any workload, and an automatic soak timer with settings from 0 to 4 hours.  It is used for heat treating, precipitate drying, ashing, igniting and fusing.  It is supplied with a pyrometer. m. Laboratory  Ovens.    The  laboratory  ovens  are  used  for  ASTM  test  D-2276.    They  operate  on  I  10V,  60Hz, single-phase  power  supplied  by  AICB4  located  in  the  MAIN  POWER  PANEL.  They  are  mounted  on  the  roadside countertop.    The  ovens  employ  gravity  convection  as  a  method  of  heat  transfer  within  their  respective  chambers. They are provided with two highly accurate hydraulic thermostats (one for control and one for high limit safety) from a single control.  This provides a sensitivity to.45°F (.25°C).  The ovens have a maximum operating temperature of 437°F (225°C).  They are supplied with a thermometer with a temperature range of 0 to 482F (250°C). n. Kinematic Viscosity Baths.  The kinematic viscosity baths are designed to be used for ASTM test D-445.  They are mounted on the roadside countertop and operate on 110V, 60Hz, single-phase power supplied by AICB5, located in the MAIN POWER PANEL.  The baths each hold six glass capillary viscometers.  Their temperature range is from ambient to 212°F (100°C).  The solid-state controllers have a sensitivity of ±  0.01°F (±  0.005°C).  Each bath has a motor driven stirrer to circulate the bath liquid, a pyrex bath jar, thermistor probe, thermometer holder, and stainless steel part covers, viscometer holders, viscometers and a bath thermometer. o. Desiccating Cabinets.  The desiccating cabinets are mounted on the roadside wall above the countertop.  They are designed for ASTM test D-2276.  The cabinets are constructed of stainless steel with glass side panels.  Molded rubber door gaskets provide an airtight fit for the doors.  The cabinets also are provided with manual relief valves. p. Analytical Balance.  The analytical balance is mounted on the damping vibration support which is located on the roadside countertop.  It is used in the performance of AST,M test D-2276.  The analytical balance comes with its own power supply unit which receives 110V, 60Hz, single-phase power from a convenience outlet in the laboratory compartment.  It is a fully automatic, top-loading balance with up front one-finger control of all balance functions. It provides  digital  readout  that  can  be  viewed  from  any  angle.    The  door  on  top  and  one  on  each  side  make  the weighing chamber fully accessible for formulations and liquid transfer operations.  The weighing chamber is housed in glass for unobstructed viewing. q. Harvard  Trip  Laboratory  Balance.    This  balance  is  stored  in  the  laboratory  cabinets.    It  is  a  double-beam balance.  The upper beam is graduated from 0 to 10 grams in 0.1 gram divisions.  The lower beam is graduated from 0 to 200 grams in 10 gram divisions.  The capacity of the scale is 2000 grams.  It has a sensitivity of 0.1 gram.  It is provided with two removable stainless steel pans. 1-32