1.1 This specification covers requinements, test methods,and marking requirements for system components when testod with nominal SDR9 cossinked polyethylene (PEX) tubing a system. Systems are intended for 100 psi (0.69 MPa) water serice up to and including a maximum working temperature of 180下F (82 °C) Requirements and test methods are incluoded for malerials, workmanship. dimensions and tolerances, burst pressure, hydrostatic sustained pressure. excessive uemperature and pressure, corrosion rsistanse, and thermocycling tests.The componbents covered by this specificaion ane inended for use in, but not limited to, residential and commercial bhot and cold potable water distribution systems or other applications such reclaimed water, fire protcion, municipal water senvice lines, raudiant heating and cooling systems, hydromic distribution systems, snow and ice melting systems, geother-mal ground loops, district heating, turf conditioning. com-pressed air distribution, and building services pipe.
