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Description
Sanitary installations are among the most disruptive sources of noise in buildings. At the same time, they are some of the most complex examples of building service equipment since they usually consist of several active and passive components such as toilets, washbasins, taps, valves, pipes and pipe clamps etc. and complex interactions. To design systems that meet target values given as requirements in national building codes, a prediction based on EN 12354-5 is required. This in turn requires laboratory measurement methods that provide input data for the prediction. The standard EN 14366-1, which covers wastewater installations, was recently revised. The development of a future standard EN 14366-2 covering freshwater installations is underway in a CEN working group. Both standards refer to the general methods for the characterisation of building service equipment in EN 15657, which are reviewed in a companion paper by Höller et al. A significant challenge in developing EN 14366-2 is the role of appliances such as taps or valves that have so far been targeted by EN ISO 3822, but not in a way that enables predictions. This contribution provides an overview of the current situation regarding the acoustical laboratory characterisation of sanitary installations and identifies needs for future research and standardization work.