The volatile products were also studied by fast pyrolysis, which is a suitable method for the analysis of the higher molecular mass compounds. The Py-GC/MS experiment of the hose sample at 550 °C resulted in the pyrolysis chromatogram, known as pyrogram, shown in Fig. 9a. The identification of the most important chromatographic peaks can be found in Table 3, which shows that Sulfo-NHS-LC-Biotin a wide range of pyrolysis products can be detected including unsaturated aliphatic and alicyclic compounds as well as aromatic hydrocarbons, chlorinated alkanes, alcohols, and ester compounds. The relative intensities of the pyrolysis products were also calculated and presented in Table 3. It must be mentioned secondary structure only those products were taken into consideration which had a relative intensity above 1% of the total amount of the products. The sensitivity of the MS varies depending on the type of the compounds. However, the intensity of the individual products can be compared among the different pyrolysis experiments (e.g., normal and successive pyrolysis) since the peak areas were normalised to the sample sizes.