【正文】 by Technical Committee CEN/TC 194 “Utensils in contact with food”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2020, and conflicting national standards shall be withdrawn at the latest by November 2020. This document supersedes ENV 128751:1998. According to the CEN/CENELEC Internal Regulations, the national standards anizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 128751:2020 (E) 4 Introduction This European Standard specifies a test method for the determination of the mechanical dishwashing resistance of domestic articles. The results obtained according to this document are intended to serve for parison purposes for the dishwashing resistance of the different domestic articles and give an indication of resistance only under the standard conditions of this test. The dishwasher test method described in this document is both time consuming and expensive. However, no single accelerated and inexpensive test is available which gives parable results to the dishwasher test for the whole variety of utensils made of various materials which are cleaned in dishwashers. The test method described here is to be used as a reference method for dishwashing resistance. Accelerated test methods may be used instead of the reference test method provided that valid parison to the dishwasher test is shown. NOTE Consideration should be given to the normal use of each type of domestic article and its normal frequency of mechanical dishwashing. Further parts of EN 12875, under the general title Mechanical dishwashing resistance of utensils, that have already been published or are in preparation are as follows: Part 2: Inspection of nonmetallic articles Part 4: Rapid test for domestic ceramic articles Part 5: Rapid test for ceramic catering articles EN 128751:2020 (E) 5 1 Scope This European Standard specifies a method for testing the resistance of domestic articles made from ceramic, glass, glass ceramic, vitreous enamel, metal and plastics under the bined chemical, thermal and mechanical stresses of mechanical dishwashing in domestic dishwashers. It specifies a reference test method for domestic dishwashing only. It does not define the number of dishwashing cycles which any given product shall withstand. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 603351, Safety of household and similar electrical appliances Part 1: General requirements (IEC 603351: 2020 Modified) EN 6033525, Safety of household and similar electrical appliances Part 25: Particular requirements for dishwashers (IEC 6033525: 1992, modified) IEC 60436, Electric dishwashers for household use Methods for measuring the performance ISO 6059, Water quality – Determination of the sum of calcium and magnesium – EDTA titrimetric method ISO 8288, Water quality – Determination of cobalt, nickel, copper, zinc, cadmium and lead – Flame atomic absorption spectrometric methods ISO 9297, Water quality – Determination of chloride – Silver nitrate titration with chromate indicator (Mohr39。 EUR O P 201。ndigkeit von Gegenst228。f233。sistance m233。ENNE EUROP196。 Amd. No. Date Comments BS EN 128751:2020 National foreword This British Standard is the official English language version of EN 128751:2020. It supersedes DD ENV 128751:1998 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee CW/29, Tableware, which has the responsibility to: — aid enquirers to understand the text。 。 BSI 15 Septem ber 2020 ISBN 0 580 46152 1 Amendments issued since publication EUROPEAN STANDARD NORME EUROP201。 Supersedes ENV 128751:1998 English version Mechanical dishwashing resistance of utensils Part 1: Reference test method for domestic articles R233。essai de r233。lmaschinenbest228。r Haushaltswaren This European Standard was approved by CEN on 7 April 2020. CEN members are bound to ply with the CEN/CENELEC In