Norm-Entwurf
PR NF P15-922
; PR NF ISO 24512
PR NF P15-922
; PR NF ISO 24512
Service activities relating to drinking water and wastewater - Guidelines for the management of drinking water utilities and for the assessment of drinking water services.
Titel (englisch)
Service activities relating to drinking water and wastewater - Guidelines for the management of drinking water utilities and for the assessment of drinking water services.