ISO 10147 stipulates that test samples made from crosslinked polyethylene (PE-X) must be stored in a specified, boiling solvent for a specific period of time and that the percent by weight of insoluble material is then measured. The percentage of insoluble material must be recorded to express the degree of crosslinking. For this procedure, IPT recommends a laboratory assembly consisting of a round glass flask with a heating jacket, a Dimroth cooler, a ring stand with suitable clamps and test holders with lids for the sample. To complete the assembly, you will also require a heating cabinet (see H3014), an analytical balance (see H3000) and a lathe.
Keine Standards gefunden
The analytical balance is required in every test laboratory. It is used to precisely determine important values such as MFR, carbon black content, K-value, degree of crosslinking, OIT, volatile components, water absorption and similar.
The circulating air oven is used to condition specimens according to the dimensional change of pipes and also as a drying oven (e.g. for determining the degree of crosslinking, water absorption, etc.).
