The K27100 Ramsbottom Carbon Residue Apparatus determines the 'carbon residue' left after evaporation and pyrolysis of a sample oil in the Ramsbottom furnace, providing an indication of the deposit forming tendencies of fuels and guidelines for the processing of refinery products. Thermostatically controlled coking furnace for five samples. Cast-iron block type furnace reaches the standard test temperature of 550°C (1022°F) rapidly and controls with ¬±1°C stability. Microprocessor temperature control has °C/°F switchable digital set point and display. Operator and equipment are protected by an over-temperature control circuit which automatically interrupts power to the unit should block temperature exceed the programmed cut-off point. Heavily insulated stainless steel cabinet with three-layer refractory top provides excellent heat retention. Conforms to the specifications of: ASTM D524, D6074; IP 14; ISO 4262; FTM 791-5002. Shipping Weight: 73 lbs (33.1kg). Dimensions: 8.2 Cu. ft.