Testing of elastomers in blow-by-mixtures by using a reactor is especially relevant in the automotive industry. Thereby, it can be simulated how the structure of the elastomers changes over the operating period through the contact with blow-by-mixtures. When working with blow-by-mixtures it is very important that the reactor is not heated with electrically. More information on the suitable Berghof reactors for testing elastomers in blow-by-mixtures can be found in the application note.