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@serk
[FONT=Arial]Pipes and fittings
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[FONT=Arial]Pipes and fittings are specified on the Engineers drawings. Pipes and fittings must comply with the following Standards:
Rigid Pipes and fittings
Perforated vitrified clay pipes for land drainage to BS 1196
Concrete Pipes and Ancillary Products to BS 5911:2002 and BS EN 1916
Vitrified Clay Pipes and Fittings to BS EN 295 (all parts)
Ductile Iron to BS 598 & BS 4179
[/FONT][FONT=Arial]**Flexible pipes and fittings
Plastic pipes for land drainage to BS 4962
Plastic Piping Systems for Non-pressure underground drainage and sewage to BS EN 1401 & BS 4660 – Solid wall only, structured wall pipes are not acceptable for use in drainage systems
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[FONT=Arial]Access chambers
[/FONT][FONT=Arial]Precast concrete manhole units to BS EN 1917
Plastic Inspection Chambers for Drains and Sewers to BS 7158:2001
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[FONT=Arial]Other Fittings
[/FONT][FONT=Arial]Gully and Manhole Tops for Vehicular and Pedestrian Areas to BS EN 124:1994
Drainage Channels for Vehicular and Pedestrian Areas to BS EN 1433:2002
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[FONT=Arial]Other materials
[/FONT]**[FONT=Arial]All other pipes and fittings to Sewers for Adoption (including local water authority variations and addendums)
[/FONT][FONT=Arial]All gravity drainage pipework below slab shall be in cast iron with mechanical joints conforming to BS EN 877 and ISO 6594 suitable for underground use and suspended from the slab.[/FONT]