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Coal Ash Fusibility Digital Test Furnaces

Coal Ash Fusibility Digital Test Furnaces

Carbolite | Sample Preparation - Inorganic

The CAF DIGITAL is designed to test coal ash fusibility according to the standards ASTM 1857-04 and BS ISO 540:2008.

It is supplied as standard with Windows 7 compatible image capture and reporting software.

Additional accessories are also available for testing of biomass and co-fired biomass and coal ashes in accordance with the following standards: ASTM 1857-04 and BS ISO 540:2008.

In addition a fully manual CAF furnace, the CAF 16/38, is also available, which requires manual observation and recording of the transition points.

Key Features:

  • For determination of ash fusibility for coal ash (and optionally biomass or co-fired ash)
  • Suitable for testing to ASTM 1857-04 and BS ISO 540:2008
  • Up to 12 samples may be tested simultaneously
  • Tests can be run up to 1600°C
  • Automated digital image capture and archiving using Windows compatible software
  • User defined temperature ramp and image capture rate
  • Sealed work-tube for use with fail-safe gas control mechanism for use with toxic and inflammable gas mixtures
  • The sliding and rotating door mechanism provides unrestricted access for sample loading
  • Supplied complete with image review software able to generate test reports of the transition temperatures
  • Supplied complete with sample holder, mounting tiles and loading tool
  • Specify the preferred gas mixture at the time of order
  • Programmed ramping to the test starting temperature


  • Control mechanisms for the following gas mixtures
  • Reducing gas 60% (v/v) CO + 40% (v/v) CO2, Oxidising gas Air, Purge gas N2
  • Alternatively, Reducing gas 50% (v/v) H2 + 50% (v/v) CO2, Oxidising gasCO2, Purge gas CO2
  • Optional configuration for biomass ash or co-fired (biomass and coal mixture ashes)

More Information

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