ASTM D3241 JFTOT Heater Tubes

Metaspec manufactures JFTOT heater tubes that fully satisfy the requirements of ASTM D3241, the Jet Fuel Thermal Oxidation Stability Test. ASTM D3241 is designed to create deposits on the heater tube if there are certain types of impurities in the jet fuel. The fuel quality is rated visually by comparing the heater tube with a standard color chart under 3x magnification or using a digital tube rater that measures deposit thickness.
 
Metaspec heater tubes are manufactured from 6061 aluminum and polished using a rotational cut buffing technique with a polishing compound. Our extensive heater tube manufacturing experience means that Metaspec tubes have a highly consistent mechanical surface finish. This consistent surface finish makes it easy for operators to rate the tubes either visually or using digital tube raters. Thousands of tests have been conducted at laboratories around the world and have established that Metaspec tubes provide statistically equivalent results to other brands whether rated visually or digitally.
 
Heater tubes are sold in a pack of ten. Each heater tube is carefully cleaned, inspected, serial-numbered, and ready for use in the laboratory.