BS EN 16941-2:2021

This standard BS EN 16941-2:2021 On-site non-potable water systems is classified in these ICS categories:

• 93.025 External water conveyance systems

This document 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:

1. WC flushing;

2. garden watering;

3. laundry;

4. cleaning purposes.

This document also specifies the minimum requirements for greywater systems.

Excluded from the scope of this document are:

1. the use as drinking water and for food preparation;

2. the use for personal hygiene purposes;

3. direct use systems without treatment;

4. product design for specific system components;

5. industrial effluents;

6. heat recovery and cooling demands.