Water supply. Requirements for systems and components outside buildings
Water supply. Requirements for systems and components outside buildings
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1 Scope This standard specifies:
— general requirements for water supply systems outside buildings (see Figure 1), including potable water mains and service pipes , service reservoirs , other facilities and raw water mains but excluding treatment works and water resources development;
— general requirements for components;
— general requirements for inclusion in product standards which may include specifications which are more stringent;
— requirements for installation, site testing and commissioning.
The requirements of this standard apply to:
— the design and construction of new water supply systems;
— the extension of significant areas forming a coherent part of an existing water supply system;
— significant modification and/or rehabilitation of existing water supply systems.
NOTE It is...
Другие стандарты BS