BSRIA has introduced a new Pre-Commission Cleaning of Pipework (BG 29/2012) guide, which replaces BG 29/2011.
The guide will reflect new British and European standards and clarifies certain points that have been raised over the last year. It will also continue to provide the industry with the latest guidelines and best practice cleaning techniques for commercial hot and cold water systems in buildings.

In particular, the revised guide aims to shed light on the roles and responsibilities of the parties, improve the exchange of information between them and provide consistency between service offerings of the pre-commission cleaning contractors.

Thorough pre-commission cleaning of pipework systems continues to be important with the adoption of energy efficient controls strategies that may result in low flow rates, particularly in terminal units with very small orifices in control valves.

Pre-commission cleaning is achieved through a process of flushing and chemical cleaning (where required) followed by the addition of biocides and inhibitors.

BSRIA says that systems designed and cleaned in accordance with its guidance are far less likely to experience operating problems.

Contents include: design considerations; inspection and witnessing; installation considerations; system dynamic flushing; chemical cleaning procedure; and connections between new and existing systems.

Hard copies of the guide are now available for purchase at £60 or £30 to BSRIA members. PDF versions are also available for £60 + VAT or free to download for BSRIA members.

Visit www.bsria.co.uk