Devices to prevent pollution by backflow of potable water. Air gaps with minimum circular overflow (verified by test or measurement). Family A, type G— 14 стр.
Design, installation, testing and maintenance of services supplying water for domestic use within buildings and their curtilages Specification— 146 стр.
Guide to the design, installation, testing and maintenance of services supplying water for domestic use within buildings and their curtilages. Complementary guidance to BS EN 806— 94 стр.
Guide to the design, installation, testing and maintenance of services supplying water for domestic use within buildings and their curtilages. Complementary guidance to BS EN 806— 100 стр.
