NEN ISO 22391-1 : 2007

Defines the general aspects of piping systems made of polyethylene of raised temperature resistance (PE-RT), intended to be used for hot and cold water installations within buildings for the conveyance of water whether or not the water is intended for human consumption (domestic systems) or heating systems under specified design pressures and temperatures according to the class of application. It also covers a range of service conditions (classes of application), design pressures and pipe dimension classes, and also specifies test parameters and defines terms, symbols and abbreviated terms.