Household and similar electrical appliances. Method of measuring performance. Assessment of repeatability, reproducibility and uncertainty
Household and similar electrical appliances. Method of measuring performance. Assessment of repeatability, reproducibility and uncertainty
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1 Scope This Technical Report deals with the determination of repeatability and reproducibility of test methods used for assessing the performance characteristics of household and similar electrical appliances. It also provides guidance for carrying out round robin tests ( RRT ). It also specifies the uncertainty reporting of measurements of household and similar electrical appliances. It describes methods to estimate the uncertainty of a measured result and to predict the range of measured values when the same appliance is measured in another laboratory applying the same measurement method. It does not cover the development of measurement methods. It also does not deal with:
– the production variability of the appliance;
– how closely the measurement method reflects the normal use of appliances in households.
NOTE 1 Although this technical report does not cover the development of test methods, it can be taken into consideration for this purpose.
NOTE 2 For the purpose of this technical report production variability includes the variation of the individual appliances of the same type and model manufactured on the same production...
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