Plastics piping systems for the supply of gaseous fuels for maximum operating pressures up to and including 2 MPa (20 bar) - Polyamide (PA) - Part 6: Code of practice for design, handling and installation
This part of ISO 22621 specifies a code of practice dealing with polyamide (PA) piping system, intended to be buried outside buildings and used for the supply of gaseous fuels.The code of practice covers mains and service lines whose components are prepared for jointing by scraping and/or machining, and gives instructions for the design, storage, handling, transportation, laying conditions and fusion quality control of PA pipes and fittings up to and including 250 mm outside diameter, as well as subsequent joint testing, backfilling, pipe system testing, commissioning and decommissioning.The jointing methods covered by this part of ISO 22621 are butt fusion