scope:

This European Standard specifies the principles of design, sizing, installation, identification, commissioning and maintenance of greywater systems with the purpose of use of greywater on-site. It applies preferably for the use of treated greywater for: - WC flushing; - garden watering; - laundry; - cleaning purposes. This European Standard also specifies the minimum requirements for greywater systems. Excluded from the scope of this European Standard are: - the use as drinking water and for food preparation; - the use for personal hygiene purposes; - direct reuse systems for external use e. g. garden watering; - product design for specific system components; - industrial effluents; - heat recovery and cooling demands.