DIN SPEC 19755:2012-03 Activities relating to drinking water and wastewater services - Guidelines for the assessment and for the improvement of the service to users

标准编号：DIN SPEC 19755:2012-03

英文标题：Activities relating to drinking water and wastewater services - Guidelines for the assessment and for the improvement of the service to users

德文标题：Dienstleistungen im Bereich der Trinkwasserver- und Abwasserentsorgung - Hinweise für die Bewertung und Verbesserung der Dienstleistungen für Nutzer

发布日期：2012-03

DIN SPEC 19755:2012-03 Activities relating to drinking water and wastewater services - Guidelines for the assessment and for the improvement of the service to users

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