Microwave Research & Applications, Inc.
190 Easy Street Unit A
Carol Stream, Illinois 60188
Phone 630-480-7456     Fax 630-480-7458

BP-120 High Temperature LOI/Ashing Microwave

A high temperature ashing microwave
from Microwave Research and Applications for
Inductively coupled plasma atomic emission spectroscopy (ICP-AES)
sample preparation, Loss on ignition (LOI) testing and ashing of samples.



The BP-120 is a high temperature LOI/Ashing microwave with simple user selectable "time at temperature" control settings. The timer and temperature controller are programmed by the user. The timer begins timing once the temperature controller reaches its programmed temperature. The temperature controller maintains the muffle air temperature to the programmed value. The timer and temperature controller are very straightforward and simple to program. To further ease programming, there is a printed quick start instructions mounted to the cover. The microwave produces 1,000 watts of microwave energy for fast heating and ashing.

Included is a muffle inside the microwave that protects the microwave from the heat generated. The muffle has removable inserts with microwave susceptor that convert the microwave energy to thermal heat. The inner muffle is 6" x 6" x 3 ½" tall. The temperature inside the inner muffle can increase from 20 °C to 1,000 °C in under 35 minutes when empty. Sample heating times depend on the sample loads inside the muffle.


BP-120 features

  • 120 volt operation, 15 ampere - needs no special wiring (230 VAC 50 Hertz input available)
  • Economical LOI/Ashing microwave
  • Up to 1,000 watts of microwave power
  • Simplified timer and temperature control - timer begins timing process once desired temperature is reached.
  • Timer and temperature controller retains last protocol even with power removed
  • Timer can be programmed in minutes or hours
  • Temperature controller can be programmed in degrees Celsius or Fahrenheit scale
  • Quick program operation instructions on the microwave cover just above the control panel for easy use.
  • High volume cooling for long life
  • All cooling fan operate when main power is on for better cooling
  • Reaches 1,000 °C in less than 35 minutes from 20 °C starting temperature when empty
  • Susceptor coated inner muffle (left side, right side, rear and top) are replaceable should they need to be replaced.
  • Muffle rated for 1,100 °C continuous use
  • Inner muffle (6" x 6" x 3 ½" tall)
  • Large muffle door for easy loading and unloading
  • Replaceable microwave safe type K temperature probe rated for 1,000 °C continuous use
  • Compact microwave - uses minimal counter space
  • Stainless steel cavity and cover for easy clean up, chemical resistance and long life
  • Fully safety tested including microwave leakage
  • Meets US FCC requirements and can be tested for Canadian CSA requirements.

Specifications (values nominal)



Input power                                          120 Volts / 60 Hz. 15 amp dedicated circuit

(230 volt / 50 Hz available)


Outer dimensions                                 22" w x 13 ½" h x 16" d (W/O handle)

Inner muffle dimensions                    6" w x 3 ½" h x 6" d

Weight/shipping weight                      45 pounds / 52 pounds



Frequency                                             2.45 GHz. - an ISM frequency

Microwave leakage                             Less than 5 mW/cm2 at 5 cm meeting FCC/FDA CDRH requirements