Measurement methods and calculations
ANNEX IVSupplementary provisions
ANNEX IV Measurement methods and calculations For the purposes of compliance and verification of compliance with the requirements of this Regulation, measurements and calculations shall be made using harmonised standards the reference numbers of which have been published for this purpose in the Official Journal of the European Union , or other reliable, accurate and reproducible methods, which takes into account the generally recognised state-of-the-art, and in line with the following provisions. The energy consumption, EEI, water consumption, programme duration, cleaning and drying performance, and airborne acoustical noise emissions of a household dishwasher model shall be measured and/or calculated using the eco programme with the household dishwasher loaded at rated capacity. The energy consumption, water consumption, programme duration, cleaning and drying performance shall be measured concurrently. The EPWC is expressed in litres per cycle and rounded to one decimal place. The duration of the eco programme (T t ) is expressed in hours and minutes and rounded to the nearest minute. Airborne acoustical noise emissions is measured in dB(A) with respect to 1 pW and rounded to the nearest integer. 1. ENERGY EFFICIENCY INDEX For the calculation of the EEI of a household dishwasher model, the EPEC of the household dishwasher is compared to its SPEC. (a) The EEI is calculated as follows and rounded to one decimal place: EEI = (EPEC/SPEC) × 100 where: EPEC is the eco programme energy consumption of the household dishwasher, measured in kWh/cycle and rounded to three decimal places; SPEC is the standard programme energy consumption of the household dishwasher. (b) The SPEC is calculated in kWh/cycle and rounded to three decimal places as follows: (1) for household dishwashers with rated capacity ps ≥ 10 and width > 50 cm: SPEC = 0,025 × ps + 1,350 (2) for household dishwashers with rated capacity ps ≤ 9 or width ≤ 50 cm: SPEC = 0,090 × ps + 0,450 where ps is the number of place settings. 2. CLEANING PERFORMANCE INDEX For the calculation of the cleaning performance index (I C ) of a household dishwasher model, the cleaning performance of the eco programme is compared to the cleaning performance of a reference dishwasher. The I C is calculated as follows and rounded to two decimal places: I C = exp (ln I C ) and where: C T,i is the cleaning performance of the eco programme of the household dishwasher under test for one test run (i), rounded to two decimal places; C R,i is the cleaning performance of the reference dishwasher for one test run (i), rounded to two decimal places; n is the number of test runs. 3. DRYING PERFORMANCE INDEX For the calculation of the drying performance index (I D ) of a household dishwasher model, the drying performance of the eco programme is compared to the drying performance of the reference dishwasher. The I D is calculated as follows and rounded to two decimal places: I D = exp (ln I D ) and where: I D,i is the drying performance index of the eco programme of the household dishwasher under test for one test run (i); n is the number of combined cleaning and drying test runs. The I D,i is calculated as follows and rounded to two decimal places: ln I D,i = ln (D T,i /D R,t ) where: D T,i is the average drying performance score of the eco programme of the household dishwasher under test for one test run (i), rounded to two decimal places; D R,t is the target drying score of the reference dishwasher, rounded to two decimal places. 4. LOW POWER MODES The power consumption of the off mode (P o ), standby mode (P sm ) and where applicable delay start (P ds ) are measured. The measured values are expressed in W and rounded to two decimal places. During measurements of the power consumption in low power modes, the following shall be checked and recorded: — the display or not of information; — the activation or not of a network connection.