The most straightforward analysis is the isothermal pyrolysis. The sample is rapidly heated to a given temperature for a given period of time, and the pyrolysis products are analysed. For many applications this is sufficient, especially if the sample is well-known for example in product control. There are however, other ways of heating the sample to get more information when dealing with more challenging problems.

Temperature time profile isothermal pyrolysis
Temperature time profile of isothermal pyrolysis.