Test samples of PEX need to be immersed in boiling solvent and the insoluble part measured. The percentage of this part is degree of crosslinking. For this, we recommend a laboratory assembly consisting of a round glass fl ask with a heating jacket, a Dimroth cooler, a ring stand with suitable clamps and test holders with lids for the sample. To complete the measurement you will also require a heating oven and analytical balance.
According to ISO 10147 , DIN 16892 , ASTM D 2765