I have set up ASTM D5769 in MSD Chemstation ( Version G1701EA E.02.02.1431 ). The calibration looks good and my checks generally look good. But I have a slightly high bias on gasoline samples. I think my uncalibrated C10 benzenes may be too high and I am wondering if I have that set up properly. Does anyone know how to correctly set up the summing? I am worried that it may be including C10 benzenes that I am already separately calibrated for. Thank you!