ASTM D2890 Test Method for Calculation of Liquid Heat Capacity of Petroleum Distillate Fuels
3. Summary of Test Method
3.1 The Watson characterization factor, K, is obtained from a graphical correlation relating determined Test Method D86 distillation data and K. The liquid heat capacity is obtained, either graphically or mathematically, from correlations relating calculated heat capacity, temperature at which heat capacity is being calculated, determined API gravity, and K.
NOTE 1 - Details of the method have been published.
4. Significance and Use
4.1 Heat capacities obtained by this method are those at atmospheric pressure. However, because the temperature range is low, the calculated values are similar to saturated liquid heat capacities in the temperature-pressure range required for most engineering design.
