ISO 24511
Activities relating to drinking water and wastewater services - Guidelines for the management of wastewater utilities and for the assessment of wastewater services
Dienstleistungen im Bereich Trinkwasser und Abwasser - Leitfaden für das Management und die Beurteilung der Abwasserentsorgung
Responsible national committee
Responsible international committee
ISO/TC 224 - Drinking water, wastewater and stormwater systems and services