Every new or modified service must be thoroughly flushed with wholesome water to remove debris and organic matter that could foster biofilms.
As a copyrighted British Standard, the official BS 8558:2015 PDF must be purchased through authorized channels:
The primary source for the latest version. bs 8558 pdf
The current version is , which superseded the 2011 edition.
The standard is structured to provide specific "how-to" advice aligned with the parts of BS EN 806: Every new or modified service must be thoroughly
is a critical British Standard that provides complementary guidance to the BS EN 806 series on the design, installation, testing, and maintenance of hot and cold water services for domestic use within buildings. It serves as the primary UK implementation for maintaining safe water hygiene and replaces the older BS 6700 standard, which was withdrawn in 2012. Core Purpose and Scope of BS 8558
BS 8558 provides an informative annex (Annex C) for that were originally part of BS 6700. The standard is structured to provide specific "how-to"
For maintaining hygiene and meeting legal obligations for water safety.
Outlines regular inspection and sampling regimes, including Total Viable Counts (TVC) and specific tests for Legionella and Pseudomonas aeruginosa . BS 8558:2015 vs. Previous Versions
Sites like The NBS or Accuris provide the document for professional use.