This British Standard specifies the requirements for cast iron rainwater systems for use on buildings.The sizes of the rainwater system extend from DN 50 to DN 150.
This standard specifies the requirements for the materials, dimensions, tolerances, mechanical properties, surface condition, primary coatings, jointing methods and marking for the following components of the rainwater system:
- rainwater pipes, fittings and components used for assembly or support;
-gutters, including half-round, ogee and beaded, fittings and components used for assembly or support;
- gutters, including half-round, ogee and beaded, fittings and components used for assembly or support.