This standard specifies the terms, definitions, symbols and abbreviations, product classification, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of oxygen-barrier cross-linked polyethylene (PE-X) pipes for floor heating. and quality commitment. This standard applies to oxygen-blocking cross-linked polyethylene (PE-X) pipes for floor radiant heating produced using high-density polyethylene as the main raw material and using a peroxide cross-linking process. This standard does not apply to pipes for fire extinguishing systems and fluid delivery systems for non-aqueous media.