Bs 8558 Pdf |verified| Jun 2026
Guidance on pipework layouts designed to avoid water stagnation, dead legs, and dead ends, which are breeding grounds for bacteria.
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BS 8558:2015 is a cornerstone document for all professionals engaged in the design, installation, testing, and maintenance of domestic water services. It successfully bridges the gap between the European BS EN 806 standard and the specific needs of the UK construction and water industries. The 2015 revision brings it fully up-to-date with crucial health and safety legislation concerning Legionella control, making it an indispensable tool for ensuring safe and effective water systems. For any professional seeking to work to current best practices, obtaining the official BS 8558:2015 PDF from an authorized retailer is a necessary and fundamental investment.
Failure to carry out this process is a breach of the Water Supply (Water Fittings) Regulations 1999.
As a British Standard, BS 8558:2015 is a copyright-protected document. To ensure you are using the most up-to-date, legal, and compliant version, it is recommended to purchase the document directly from legitimate technical standards providers. bs 8558 pdf
If you are looking for a , this article serves as a comprehensive overview of the standard’s purpose, key requirements, and how it aligns with UK health and safety regulations, such as Legionella control . What is BS 8558?
Originally, the design of UK water systems was governed primarily by BS 6700. In 2012, European standards (BS EN 806 series) were introduced to harmonize practices across Europe. However, because European standards must accommodate many different national water regulations, they often lack specific details required for regional compliance.
The 2015 standard revises recommendations for the chemical cleaning, flushing, and disinfection of systems. This process is vital after new installations, repairs, or modifications. For example, chlorinating new supplies is a specific requirement under BS 8558 to protect public health, often requiring that chlorinated water not less than 50 mg/l is allowed to stand for one hour before being flushed. This content is further expanded in a complementary document, , which provides specific guidance on the cleaning, flushing, and disinfection of domestic water services.
BS 8558:2015 – Guide to the design, installation, testing, and maintenance of services supplying water for domestic use within buildings and their curtilages (formerly incorporating much of the now-withdrawn BS 6700). Guidance on pipework layouts designed to avoid water
Understanding BS 8558:2015 – A Complete Guide to Water Systems Design, Installation, and Maintenance
BS 8558 is a British Standard that provides complementary guidance to , the European specification for installations inside buildings conveying water for human consumption.
Best practices for flushing, disinfection, and pressure testing new or altered systems.
Procedures for pressure testing and disinfection before a system goes live. Operation & Maintenance: Ongoing strategies to prevent issues like Legionella growth through temperature control and regular inspections. Purchasing and Access Official PDF copies of BS 8558:2015 It successfully bridges the gap between the European
BS 8558 emphasizes designing systems that minimize the risk of water stagnation. This includes appropriate sizing of pipes, selecting materials that do not promote bacterial growth, and ensuring adequate insulation to maintain cold water below 20°C and hot water above 50°C (or 60°C for higher risk areas). 2. Flushing and Disinfection
| Section | Focus Area | Key Functions | | :--- | :--- | :--- | | | Scope & Context | Defines application for domestic water systems; outlines relationship with BS EN 806. | | Clause 4: Guidance on BS EN 806-2 | Performance & Design | Design parameters, material selection, and contamination protection. | | Clause 5: Guidance on BS EN 806-4 | Installation & Testing | On-site pipe support, jointing methods, and system testing protocols. | | Clause 6: Guidance on BS EN 806-5 | Maintenance & Sampling | Maintenance planning, inspection schedules, and water sample points. | | Annex A (Informative) | Pumped Systems | Diagrams and guidance for pumped hot/cold water system configurations. | | Annex B (Informative) | Hot Water Storage | Calculation methods for determining adequate hot water storage capacity. | | Annex C (Informative) | Pipe Sizing | Restored from BS 6700 to calculate distribution pipe diameters. |
Ensuring safe water supply for occupants.