1、BRITISH STANDARD Mechanical dishwashing resistance of utensils - Part 2: Inspection of non-metallic art i c 1 e s The European Standard EN 12875-2:2001 has the status of a British Standard ICs 97.040.60 BS EN 1 2 8 75 -2 12002 present to the responsible European committee any enquiries on the interp
2、retation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards wh
3、ich implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled ?International Standards Correspondence Index?, or by using the ?Find? facility of the BSI Standards Electronic Catalogue. A British Standard does
4、not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. This British Standard. havinp. - been prepared under the directio
5、n of the Consumer Products and Services Sector Summary of pages This document comprises a front cover, an inside front cover, the EN title page, Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 24 January 2002 pages 2 to 8, an inside
6、back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. O BSI 24 January 2002 ISBN O 580 38883 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12875-2 November 2001 ICs 67.250; 97.040.40; 97.040.60 English version Mechanical
7、dishwashing resistance of utensils - Part 2: Inspection of non-metallic articles Rsistance mcanique au lave-vaisselle des ustensiles - Partie 2: Inspection des articles non-mtalliques Splmaschinenfestigkeit von Gegenstnden - Teil 2: Inspektion von nichtmetallischen Gegenstnden This European Standard
8、 was approved by CEN on 13 October 2001 CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such
9、national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and
10、notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland
11、 and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMIT EUROPEN DE NORMALISATION Management Centre: rue de Stassart, 36 B-1050 Brussels O 2001 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN
12、 12875-2:2001 E EN 12875-212001 (E) Contents page Foreword 3 Introduction . 4 1 Scope 4 2 Normative references 4 3 Principle 4 4 Inspectors . 4 5 Apparatus . 5 6 Samples 5 7 Procedure . 5 8 Test report 7 9 Marking . 7 Bibliography 8 2 EN 12875-212001 (E) Foreword This European Standard has been prep
13、ared 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 May 2002, and conflicting national
14、standards shall be withdrawn at the latest by May 2002. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Icelan
15、d, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 3 EN 12875-212001 (E) Introduction This European Standard specifies the conditions for visual inspection of non-metallic tableware in connection with the standardized dishwashing resistan
16、ce tests including the expression of results. Other parts of this standard already published or in preparation are: Part I: Reference test method Part 3: Inspection of metallic articles Part 4: Rapid test for domestic ceramic articles Part 5: Rapid test for ceramic catering articles The marking proc
17、edure in this draft is only for non-metallic tableware. NOTE The marking based on these test results is primarily intended as consumer information. In the opinion of consumers other features of equivalent importance exist which are not always compatible with high dishwashing resistance requirement.
18、Therefore it does not seem feasible to fix minimum requirements for the dishwashing resistance of non-metallic tableware. 1 Scope This European Standard specifies the conditions for the visual inspection of non-metallic tableware in contact with foodstuffs after testing its dishwashing resistance ac
19、cording to the procedures described in the relevant parts of the EN 12875 series for articles for domestic, industrial and catering use. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited
20、at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition
21、of the publication referred to applies (including amendments). ENV 12875-1 :I 998, Mechanical dishwashing resistance of domestic utensils - Part I: Reference test method. 3 Principle The surface of at least three samples which have been tested is visually inspected under defined conditions in compar
22、ison with an unused sample by two inspectors. Depending on the type of article, the differences in the surface of the tested samples from the surface of the unused sample are recorded. 4 Inspectors At least two inspectors are required who are preferably familiar with the inspection procedure describ
23、ed in this document. Each inspector shall be able to see the surface of the specimens clearly with the naked eye (or with a 4 EN 12875-212001 (E) habitual vision aid) and shall have normal colour vision. NOTE Colour Blindness I. Suitable methods for assessing colour vision are the H-R-R-Pseudoisochr
24、omatic Plates or the Ishihara Test for 5 Apparatus 5.1 Linen cloth for wiping decorated ware 5.2 Inspection site An inspection site, which: - is protected from external light, and illuminated vertically by a diffuse daylight (3500 to 4500) K lamp yielding (1 O00 to 1500) Ix near the specimens; - sho
25、ws grey colour and a dull surface finish on all surfaces exposed to the artificial light; - has sufficient table area to accommodate all of the specimens of one type simultaneously. 6 Samples For each article at least three unused test specimens of identical shape, size and surface finish shall be t
26、ested, and a fourth test specimen shall be retained for reference. 7 Procedure 7.1 General Before inspection, easily removable deposits shall be eliminated by wiping with a cloth and/or a one-minute dip in a 10 % (m/m) aqueous solution of citric acid at about 50 “C followed by rinsing and drying. 7.
27、2 Inspection Inspection is carried out from a distance of (30 f IO) cm, while the viewing angle is changed. Each inspector independently records visible changes in the characteristics listed in Table 1, using the classification numbers listed in Table 2. For each inspector, an average is calculated
28、from the figures given in the three samples for each of the criteria listed in Table 1. The average values are rounded to one decimal. For samples consisting of more than one material, e.g. tea pots with plastic handles, report the result separately for each material. The maximum number of test cycl
29、es according to ENV 12875-1, or other test method, for which none of the criteria from Table 1 receives an average value above 1 ,O shall be the test result. If one of the inspection criteria from Table 1 receives an average value above 1 ,O then the test for this article is finished 5 EN 12875-2120
30、01 (E) Classification Table 1 - Inspection criteria Rating articles with or without decoration O 1 Ceramic tableware no visible change first discernible change Glass, glass ceramic ware 2 Vitreous enamelled tableware clearly visible change Plastics articles resistant deposits and iridescent layers +
31、 + + + other aspects + 4, 5, + 1 (+) = to be inspected 1) If several colours are present on one article to be inspected, the colour with the greatest change shall be chosen. 2) For the elimination of easily removable deposits see 7.1. 3) e.g. crazing. 4) The adherence of decorations shall be tested
32、by repeated wiping with a moist linen cloth under slight pressure. 5) Abrasion which is caused by friction during the dishwasher treatment shall be disregarded 6) Transparent articles only. 7) Swelling, deformation, cracking, or delamination. 6 EN 12875-212001 (E) 8 Testreport The test report shall
33、contain: a) a reference to this European Standard; b) the identification of the articles tested (description), for example type, origin and designation of the sample and manufacturer or supplier; c) the place and date of sampling; d) the date of receipt and date of testing the sample; e) the test me
34、thod applied, e.g. ENV 12875-1; f) the number of inspectors and their names; g) the maximum number of test cycles after which the average value of 1 ,O for each inspector was not exceeded; h) the category of article according to Table 1 and average of figures of all inspectors according to Table 2.
35、NOTE Any unusual features noted during the inspection should also be reported. 9 Marking The symbol shown in Figure 1 may be used for marking articles tested in accordance with one of the parts of the EN 12875 series and evaluated according to clause 7 (Example shown for 500 cycles). 500 Figure 1 -
36、Symbol to be used for marking containing the number of test cycles (500 in this example) corresponding to the test result NOTE The article and/or packaging can be marked by the symbol using any conventional method. When an article is made from different materials the symbol shall show the number of
37、cycles for the material with the lowest test result. 7 EN 12875-212001 (E) Bibliography I ISHIHARA, S.: Tests for colour blindness, Kanahara Shuppau Co. Ltd. Toyko-Kyoto 1971 8 BS EN 1 2 8 75 -2 12002 B SI 3 89 Chiswick High Road London W4 4AL BSI is the independent national body responsible for pre
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