Specifications for installations inside buildings conveying water for human consumption. Operation and maintenance|Access, Domestic, Maintenance, Pipe fittings, Energy conservation, Water supply and waste systems (buildings), Valves, Pipe laying, Size, Water, Water supply (buildings), Flushing cisterns, Water supply, Disinfectants, Flow rates, Hot-water supply systems, Contamination, Sanitary appliances, Dimensions, Installation, Cold-water supply systems, Design, Frost susceptibility, Safety valves, Pipework systems, Burst tests, Low temperatures, Quality