DIN Standards Committee Water Practice
EN ISO 15874-3
Plastics piping systems for hot and cold water installations - Polypropylene (PP) - Part 3: Fittings (ISO 15874-3:2013)
Kunststoff-Rohrleitungssysteme für die Warm- und Kaltwasserinstallation - Polypropylen (PP) - Teil 3: Formstücke (ISO 15874-3:2013)
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NA 119-07-11 AA - Plastic pipes and fittings inside buildings
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CEN/TC 155/WG 16 - Systems for hot and cold water applications