This code of practice applies to sanitary drainage for the transport of sewage, rainwater and drainage water. The transport can be let to main wastewater piping, to a sewage disposal plant, to reception and to percolation. The standard also applies to sanitary drainage for black liquid, liquid manure and similar liquid, from and including the floor outlet, ducts, etc., to the connection to a container. The standard applies to both new installations and to improvements and additions to existing systems. Fire protection is not included.