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CLC/TC 59X
CLC/TC 59X Performance of household and similar electrical appliances
EEDAL 2017 Conference, Sept. 2017, Irvine/US
A methodology to assess consumer relevant aspects for producttesting
Gerhard Fuchs1, Alain Roux2, Hans-Paul Siderius3, Christoforos Spiliotopoulos4 and Rainer Stamminger5
1 BSH Home Appliances, 2 Brandt France, 3 Rijksdienst voor Ondernemend Nederland, 4 European Environmental Citizens' Organisation for Standardisation (ECOS), 5 University Bonn
CLC/TC 59X
CLC/TC 59X/Ad hoc Group Consumer Relevant Testing
Established June 2016
Elaborate a strategy on consumer relevant testing (real-life conditions) in TC59X
Active contribution in standardization
Participate in discussions inside and outside the standardization committee
Elaborate a method for standardization experts which “… considers ways of assessing standards to reflect ‘real-life conditions’ …” o explain „What is consumer relevant testing?“ o assess consumer relevanceo discuss relation between standardization and regulation o examples
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Initiatives (studies, conferences, workshops, …)
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Consumer relevant testing of household electrical products
is
“bringing the home in the lab”
“product testing that provides results that correspond to resultsobtained when consumers use the product in practice” (*)i.e. “real-life conditions” in testing as far as possible
(short)
(long)
*: by CENELEC/TC 59X
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Consumer relevant testing
is not
“real-life testing”
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Test procedure in place vs. Real lifeDishwasher
Washingmachine
Refrigerator
Integrate real-life conditions in test procedures; priorities?
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Representativenessthe correspondence of the results from applying the test procedure to the results obtained in practice (at the end-users)
Coststhe costs for carrying out the test procedure
Reproducibilitythe consistency of results when the same product is retested under somewhat different conditions, e.g. in another laboratory, but using the same test procedure
Repeatabilitythe consistency of results, e.g. regarding energy consumption or performance when the same product is retested under the same conditions, e.g. in the same laboratory by the same staff
Criteria to evaluate test procedures / standards
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Methodology developed by CLC/TC 59X/ad hoc GroupConsumer relevant testing
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Demonstration of relationship and influences of parameters to performance in product testing
Situational conditions: ambient temperature, humidity, ventilation (air circulation), lighting level, type of floor to be cleaned, …
Input conditions: frequency, voltage and quality of the power supply, caloric value of gas, temperature and hardness and conductivity of water, …
User behaviour: settings (installation/set-up, choice of programme), frequency of use, loading (amount and type), choice of detergent (composition and amount), …
Product features: available programmes, attachments (e.g. nozzles) and capacity, …
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1a List the parameters (product features, situational conditions, input conditions and user behaviour) that influence product performance or energy consumption; analyse the interactions and then select the (most) relevant parameters
1b Identify the main performance aspects expected by consumers and how these are experienced by consumers
2a For the chosen parameters, indicate the variation found in practice and check whether it is considered in the standard being evaluated
2b Assess how the expected performance aspects are measured in the standard
3 Evaluate the correspondence to practice (consumer relevant testing) of the standard according to:• Missing relevant parameters• Variation in parameters taken into account• Missing performance aspects• Correspondence of the measurement of the
performance with the experienced performance
Steps of the methodology for assessing the consumer relevance of standards
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Evaluation refrigerators by CENELEC working group (example)
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General observations regarding correspondence
Situational conditions and inputs mostly have a narrowly specified variation. For variation to be captured multiple tests at various combinations would be necessary
Average value of the range observed in practice is not the most probable value Difficult to assess the correspondence of human observations and sense Artificial load and soiling does not necessarily signify a general problem, but a proper assessment could
be difficult
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Specific observations regarding correspondence (examples)
Washing machines Correspondence to practice cannot be determined for the standard alone. Detergent and load is to be
considered also
Refrigerators Emulate the effect of opening the door by using a higher ambient temperature to be evaluated
Vacuum cleaners Experienced drag or force and visual inspection of dust pick-up not captured
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Relation between standard and legislation regarding correspondence
EU regulation on ecodesign and labeling rely on harmonized standards The correspondence to practice of measures depend on
Correspondence to practice of the method in the standard Choice made in the regulation
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Recommendations
Systematic consideration of the criterion of consumer relevance When compensate low correspondence with other means, assumptions and emulations should be re-
evaluated Promote consumer behaviour studies to acquire better understanding of typical product usage at home Future application of this methodology to other energy-related products and with different specificities Quantitative assessment should be explored in future
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Thank you !
Contact: Dr. Gerhard FuchsBSH Home Appliances GroupCarl-Wery-Str. 3481739 Munich, Germany+49 89 4590 [email protected]
