New Evaluation Method of Cleaning Performance for Washing Machines.
In: Tenside Surfactants Detergents, Jg. 53 (2016-09-01), Heft 5, S. 445-456
academicJournal
Zugriff:
Several different approaches are commonly used to obtain information about the performance of laundry systems, e.g. washing machines. The evaluation of washing performance with soiled test fabrics is commonly done by measuring the reflectance of the washed test specimen. The absolute reflectance readings may be used if the results are only compared within a series of tests using the same batches of test materials for all runs. The inevitable uncertainty of any test results may be reduced if the results can be expressed as ratios compared to the performance of well-known or well-established reference systems tested in parallel. This approach is defined in IEC 60456:2010 and followed globally for assessing the performance of washing machines. With the current evaluation method the calculation of the overall wash performance test result cannot be adjusted to adequately reflect the characteristics of different wash programmes designed for different purposes - or different machine technology and global regions. It is therefore the task of this paper to develop an evaluation method for assessing the cleaning performance of washing machines which is scientifically sound and statistically complete and more flexible in its application to different programmes and/or regions. A new cleaning evaluation method is suggested in this paper and applied to two sets of available data. The new cleaning evaluation method shows to have a number of apparent advantages over the method currently used. As a straightforward approach the stain specific evaluation ensures full usage of generated information including reference machine and batch values to allow calibrating the test result. The full statistical evaluation gives a more complete picture and allows partial results to reflect different aspects of system performance as well as weighting factors allow adjustment to specific requirements. [ABSTRACT FROM AUTHOR]
Titel: |
New Evaluation Method of Cleaning Performance for Washing Machines.
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Autor/in / Beteiligte Person: | Stamminger, Rainer ; Lambert, Edith ; Hilgers, Thomas |
Zeitschrift: | Tenside Surfactants Detergents, Jg. 53 (2016-09-01), Heft 5, S. 445-456 |
Veröffentlichung: | 2016 |
Medientyp: | academicJournal |
ISSN: | 0932-3414 (print) |
DOI: | 10.3139/113.110463 |
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