• Conradson Carbon Residue Apparatus

Conradson Carbon Residue Apparatus


Provides an indication of relative coke forming properties of petroleum oils. The residue remaining after a specified period of evaporation and pyrolysis is calculated as a percentage of the original sample.

  • Conforms to ASTM D189 specifications

A weighed quantity of sample is placed in a crucible and heated to a high temperature for a fixed period. The crucible and the carbonaceous residue is cooled in a desiccator and weighed. The residue remaining is calculated as a percentage of the original sample and reported as conradson carbon residue.

  • Porcelain Crucible
  • Skidmore Crucible, with Iron Cover
  • Iron Crucible, with Cover
  • Iron Hood, with Bridge
  • Refractory Block
  • Nickel-Chrome Triangle Wire Support
  • Tripod
  • Burner

Conforms to the specifications of: 

ASTM D189, D6074; ANS Z-11.25; IP 13; ISO 6615; DIN 51551; FTM 791-5001; NF T 60-116


  • K80031 Porcelain Crucible
  • K80032 Skidmore Crucible, with Iron Cover
  • K80033 Iron Crucible, with cover
  • K80034 Iron Hood, with bridge
  • K80034-WT Nickel-Chrome Triangle Wire Support
  • K80035 Refractory Block
  • K80036 Tripod
  • K80039 Burner