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Overview ISO 24521:2025 - Management of on-site domestic wastewater services provides guidance and requirements for planning, designing, operating and managing on‑site domestic wastewater systems (OD…
1 Scope This International Standard provides guidance for the management of basic on-site domestic wastewater services, using appropriate technologies in their entirety at any level of development. T…
Overview ISO 24521:2016 - Activities relating to drinking water and wastewater services - provides guidance for the management of basic on-site domestic wastewater services (black and grey water) for…