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BS EN 16941-1:2024 – TC

BS EN 16941-1:2024 – TC

$217.84

Tracked Changes. On-site non-potable water systems – Systems for the use of rainwater

Published By Publication Date Number of Pages
BSI 2024 104
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This document specifies the requirements and gives recommendations for the design, sizing, installation, identification, commissioning and maintenance of rainwater harvesting systems for the use of rainwater on-site as non-potable water. This document also specifies the minimum requirements for these systems. Excluded from the scope of this document are – the use as drinking water and for food preparation, – the use for personal hygiene purposes, – attenuation and – infiltration. NOTE Conformity with the document does not exempt from compliance with the obligations arising from local or national regulations.

PDF Catalog

PDF Pages PDF Title
63 undefined
69 1 Scope
2 Normative references
70 3 Terms and definitions
71 4 Functional elements of rainwater harvesting systems
5 Design
5.1 Collection
5.1.1 General
72 5.1.2 Collection surfaces
5.1.2.1 Qualitative aspects
5.1.2.2 Quantitative aspects
5.1.3 Collection piping system
73 5.2 Treatment
5.2.1 General
5.2.2 Preliminary treatment
5.2.3 Treatment in storage device
74 5.2.4 Additional treatment
5.3 Storage
5.3.1 General
5.3.2 Materials
5.3.3 Dimensions
5.3.4 Capacity
5.3.5 Structural behaviour
75 5.3.6 Watertightness
5.3.7 Connections and internal pipe system
5.3.8 Access
5.3.9 Overflow
76 5.4 Back-up water supply
5.4.1 General
5.4.2 Backflow protection device
79 5.5 Pumping
5.5.1 General
5.5.2 Submerged pump
80 5.5.3 Non-submerged pump
5.5.4 Expansion vessel
5.5.5 Pump control unit
81 5.6 System control with monitoring
5.7 Metering
5.8 Distribution
82 5.9 Risk assessment
6 Sizing
6.1 Storage device
6.1.1 General
83 6.1.2 Determination of the available volume of rainwater
84 6.1.3 Determination of the non-potable water demand
85 6.1.4 Calculation methods
6.2 Back-up water supply
86 7 Installation
87 8 Differentiation and identification
9 Commissioning
88 10 Quality of non-potable water
11 Maintenance
89 Annex A (informative)Examples of calculation methods for storage capacity
A.1 General
A.2 Examples of calculation methods
A.2.1 Basic approach with annual time step
90 A.2.2 Detailed approach
A.2.2.1 General
91 A.2.2.2 Input data
A.2.2.3 Simulation principle
92 A.2.2.4 Application of results
94 Annex B (informative)Examples of rainwater harvesting systems with different back-up supply arrangements
97 Annex C (informative)Example for a commissioning sheet
99 Annex D (informative)Example of dye testing for distribution pipework cross-connections
100 Annex E (informative)Inspection and maintenance
E.1 Inspection and maintenance instruction sheet
101 E.2 Logbook

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BS EN 16941-1:2024 - TC
$217.84