BS EN 806-2:2005 pdf free.Specification for installations insidebuildings conveyingwater for human consumption—Design.
BS EN 806-2 This document gives recommendations, and specifies requirements, on the design of potable water installationswithin buildings and for pipework outside buildings but within the premises (see EN 806-1) and applies to newinstallations,alterations and repairs.
The following referenced documents are indispensable for the application of this document. For dated references,only the edition cited applies.For undated references the latest edition of the referenced document (including anyamendments) applies.
EN 26，Gas-fired instantaneous water heaters for sanitary uses production，itted with atmospheric burners(Including Corrigendum 1998).
EN 89,Gas-fired storage water heaters for the production of domestic hot water.
EN 545,Ductile iron, pipes， fittings，accessories and their joints for water pipelines — Requirements and testmethods.
EN 625，Gas-fired central heating boilers – Specific requirements for the domestic hot water operation ofcombination boilers of nominal heat input not exceeding 70 kw .
EN 805, Water supply—Requirements for external systems and components outside buildings.
EN 806-1:2000，Specifications for installations inside buildings conveying water for human consumption 一Part 1: General.
prEN 8O6-3,Specifications for installations inside buildings conveying water for human consumption —Part 3:Pipesizing.
EN 973,Chemicals used for treatment of water intended for human consumption – Sodum chloride forregeneration of ion exchangers.
EN 1057,Copper and copper alloys – Seamless, round copper tubes for water and gas in sanitary and heatingapplications.
EN 1254-1,Copper and copper alloys – Plumbing fittings – Part 1:Fittings with ends for capillary soldering orcapillary brazing to copper tubes.
EN 1254-2,Copper and copper alloys – Plumbing fittings – Part 2:Fittings with compression ends for use withcopper tubes.
EN 1254-3,Copper and copper alloys – Plumbing fttings – Part 3: Fittings with compression ends for use withplastics pipes.
EN 1254-4,Copper and copper alloys – Plumbing fittings – Part 4: Fitings combining other end connections withcapillary or compression ends.
All materials，components and appliances used in the construction of potable water systems shall comply withappropriate CEN product standards or European Technical Approval guidelines if applicable. Where these are notavailable national standards or local regulations should be used.
The design and selection of materials shall take into consideration the service conditions and water quality.
Information and criteria about the reasonable choice of metal pipe material taking into account corrosion likelihood isgiven in EN 12502-1 to -5.BS EN 806-2 pdf download.