KS I ISO TR 24514-2021 Activities relating to drinking water and wastewater services —Examples of the use of performance indicators using KS I ISO 24510, KS I ISO 24511 and KS I ISO 24512 and related methodologies
2021KS I ISO TR 24514-2021 Activities relating to drinking water and wastewater services —Examples of the use of performance indicators using KS I ISO 24510, KS I ISO 24511 and KS I ISO 24512 and related methodologies