DSC analysis of wax/polymer blends is carried out between 270 and 420 K. Calibration for melting point and enthalpy is normally
carried out using indium (melting point 430 K), which is unsatisfactory for these materials. IUPAC organic standards covering
this range tend to sublime and their onset temperatures are variable. Pure alkanes have similar thermal characteristics to
wax/polymer blends and some have been well characterised by adiabatic calorimetry. They are being investigated as alternative
secondary calibration standards to give more accurate thermal characterisation of wax/polymer blends. Also,n-triacontane can be used to check DSC resolution.