Ükski adiabaatne soojushulgamõõtur ei ole täielikult adiabaatiline - proov kaotab proovihoidjale osa soojusest, mille kohandamiseks kasutatakse parandustegurit.
No adiabatic calorimeter is fully adiabatic - some heat will be lost by the sample to the sample holder. A mathematical correction factor, known as the phi-factor, can be used to adjust the calorimetric result to account for these heat losses. The phi-factor is the ratio of the thermal mass of the sample and sample holder to the thermal mass of the sample alone.
