Convert ASTM distillation curve for naphtha to TBP curve by Daubert method .If the initial volume of naphtha sample is 100 ml Volumme 27 39 79 distillation Temp (C) 120 139 155 194 211 222 0 83 95 Convert ASTM distillation curve for naphtha to TBP curve by Daubert method .If the initial volume of naphtha sample is 100 ml Volumme 27 39 79 distillation Temp (C) 120 139 155 194 211 222 0 83 95