Performance Criteria of Sampling Protocols

Based on the four sample types (RDT, FF, 30MS1 and 30MS2), six sampling procedures were evaluated  

The performance of the six procedures is judged on the basis of the following criteria  

Both the modal daily consumption per occupant and the dependency on the household size are in accordance with data from other studies. This indieates that, in general, the composite proportional sampling deviee was operated correetly in the field test. There is some doubt over the apparently high eonsumption in one-person properties. These high values might stem from real high water use (e.g. tea, visitors, elderly people string at home all d ), but also from improper use of the deviee. Nevertheless no data have been excluded from the assessment on the basis of this eriterion. 

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