DIN EN 16492-2014 Paints and varnishes - Evalutation of the surface disfigurement caused by fungi and algae on coatings German version EN 16492 2014《涂料和清漆 涂层上真菌和藻类导致的表面缺陷评估 德文版本EN .pdf

1、September 2014 Translation by DIN-Sprachendienst.English price group 7No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).I

2、CS 87.040!%:nm“2237574www.din.deDDIN EN 16492Paints and varnishes Evalutation of the surface disfigurement caused by fungi and algae oncoatings;English version EN 16492:2014,English translation of DIN EN 16492:2014-09Beschichtungsstoffe Bewertung von optischen Oberflchenvernderungen verursacht durch

3、 Pilze und Algenauf Beschichtungen;Englische Fassung EN 16492:2014,Englische bersetzung von DIN EN 16492:2014-09Peintures et vernis valuation de laltration daspect de la surface des revtements provoque par leschampignons et les algues;Version anglaise EN 16492:2014,Traduction anglaise de DIN EN 1649

4、2:2014-09www.beuth.deDocument comprises 9 pagesIn case of doubt, the German-language original shall be considered authoritative.08.14 DIN EN 16492:2014-09 2 A comma is used as the decimal marker. National foreword This document (EN 16492:2014) has been prepared by Technical Committee CEN/TC 139 “Pai

5、nts and varnishes” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the DIN-Normenausschuss Beschichtungsstoffe und Beschichtungen (DIN Standards Committee Coatings and Coating Materials), Working Committees NA 002-00-15 AA Bautenbeschichtungen and NA 002-00-0

6、7 AA Allgemeine Prfverfahren fr Beschichtungsstoffe und Beschichtungen. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16492 June 2014 ICS 87.040 English Version Paints and varnishes - Evaluation of the surface disfigurement caused by fungi and algae on coatings Peintures et vernis - valuation

7、 de laltration daspect de la surface des revtements provoque par les champignons etles algues Beschichtungsstoffe - Bewertung von optischen Oberflchenvernderungen versursacht durch Pilze und Algen auf Beschichtungen This European Standard was approved by CEN on 30 April 2014. CEN members are bound t

8、o comply with the CEN/CENELEC 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 national standards may be obtained on application to the CEN-C

9、ENELEC 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 notified to the CEN-CENELEC Management Centre has

10、the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxe

11、mbourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Bruss

12、els 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16492:2014 EEN 16492:2014 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Principle 4 4 Apparatus .4 5 Preparation .4 6 Procedure .4 7 Expression of resul

13、ts 5 8 Test report 5 Annex A (normative) Assessment according to EN ISO 4628-1 6 A.1 Designation of intensity of disfigurements according to EN ISO 4628-1:2003, 3.4 6 A.2 Designation of the quantity of disfigurements according to EN ISO 4628-1:2003, 3.2 6 A.3 Designation of the percentage area of di

14、sfigurements .6 Bibliography 7 DIN EN 16492:2014-09 EN 16492:2014 (E) 3 Foreword This document (EN 16492:2014) has been prepared by Technical Committee CEN/TC 139 “Paints and varnishes”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard,

15、 either by publication of an identical text or by endorsement, at the latest by December 2014, and conflicting national standards shall be withdrawn at the latest by December 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. C

16、EN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus

17、, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United K

18、ingdom. DIN EN 16492:2014-09 EN 16492:2014 (E) 4 1 Scope This European Standard specifies a procedure for the evaluation of the degree of surface disfigurement caused by fungi and algae on coatings. This European Standard is not applicable for evaluating disfigurements caused by blue stain in servic

19、e on and in wood surfaces. A scale for the assessment of blue stain of coated and uncoated wood is specified in EN 152:2011, 8.5.2. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated re

20、ferences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 4628-1:2003, Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform

21、changes in appearance Part 1: General introduction and designation system (ISO 4628-1:2003) 3 Principle The degree of fungal or algal growth on coatings is given a numeric rating. 4 Apparatus 4.1 Microscope with a typical magnification of up to 100 (if necessary) 5 Preparation The test specimen shal

22、l be the flat surface of any exposed test panel or cut from a construction panel. In the case of assessment of building facades one or more defined parts of the surface shall be chosen and described in the test report. The test specimen shall be examined without wiping, washing or removing any loose

23、 surface material. For better discrimination between fungi and algae the test surface shall be examined under wet conditions. Dry surfaces shall be wetted by gently spraying with clean water. Care shall be taken not to add any contamination to the specimen surface. 6 Procedure Carry out the assessme

24、nt visually using normal or corrected vision on a defined test surface. Carry out the assessment under good illumination and from a distance less than 1 m. If contamination of dirt soil is suspected, this shall be confirmed by the use of a microscope (4.1) and taken into consideration when evaluatin

25、g the entire surface. Distinguishing dirt from biological disfigurement might be difficult even with the aid of a microscope. To improve precision, the evaluation should be carried out by an experienced operator. Any fungal or algal growth observed only on dirt or soil particles that have accumulate

26、d on the test specimen shall be reported separately in the test report. DIN EN 16492:2014-09 EN 16492:2014 (E) 5 7 Expression of results The numerical ratings for the intensity (in accordance with Table A.1), the quantity (in accordance with Table A.2) and the percentage area (in accordance with Tab

27、le A.3) of disfigurements caused by fungal or algal growth shall be expressed as indicated in the following examples: fungal growth: intensity 1, quantity 3, percentage area 2 algal growth: intensity 2, quantity 1, percentage area 1 8 Test report The test report shall contain at least the following

28、information: a) all details necessary to identify the product tested; b) reference to this European Standard (EN 16492:2014); c) type and origin of the test specimen and its exposure conditions, including whether the inspection is carried out in a laboratory or on-site; d) statement whether the grow

29、th observed is either fungal or algal; e) numerical contamination rating in accordance with Clause 7; f) any presence of dirt/soiling; g) if any growth is observed on dirt or soil only, including an information whether any magnification to inspect the surface was carried out; h) any deviation from t

30、he test procedure described; i) any unusual features (anomalies) observed during the evaluation; j) date(s) of the test. DIN EN 16492:2014-09 EN 16492:2014 (E) 6 Annex A (normative) Assessment according to EN ISO 4628-1 A.1 Designation of intensity of disfigurements according to EN ISO 4628-1:2003,

31、3.4 The intensity of changes in the appearance of the coating (e.g. colour changes) caused by fungal or algal growth shall be expressed using Table A.1: Table A.1 Rating scheme for designating the intensity of visible growth Rating Intensity of visible growth 0 1 2 3 4 5 unchanged, i.e. no visible g

32、rowth very slight, i.e. just visible growth slight, i.e. clearly visible growth moderate, i.e. very clearly visible growth considerable, i.e. pronounced visible growth very marked visible growth A.2 Designation of the quantity of disfigurements according to EN ISO 4628-1:2003, 3.2 The quantity (numb

33、er) of disfigurements caused by fungal or algal growth shall be expressed using Table A.2: Table A.2 Rating scheme for designating the quantity of disfigurements Rating Quantity of disfigurements 0 1 2 3 4 5 none, i.e. no detectable disfigurements very few, i.e. small, barely significant number of d

34、isfigurements few, i.e. small but significant number of disfigurements moderate number of disfigurements considerable number of disfigurements dense pattern of disfigurements / homogeneous disfigurement A.3 Designation of the percentage area of disfigurements The percentage area of disfigurements ca

35、used by fungal or algal growth shall be expressed using Table A.3: Table A.3 Rating scheme for designating the percentage area of disfigurements Rating Percentage area of disfigurements 0 1 2 3 4 no growth on the surface of the specimen up to 10 % growth on the surface of the specimen more than 10 %

36、 up to 30 % growth on the surface of the specimen more than 30 % up to 50 % growth on the surface of the specimen more than 50 % up to 100 % growth on the surface of the specimen DIN EN 16492:2014-09 EN 16492:2014 (E) 7 Bibliography EN 152:2011, Wood preservatives - Determination of the protective e

37、ffectiveness of a preservative treatment against blue stain in wood in service - Laboratory method EN 15457, Paints and varnishes - Laboratory method for testing the efficacy of film preservatives in a coating against fungi EN 15458, Paints and varnishes - Laboratory method for testing the efficacy of film preservatives in a coating against algae DIN EN 16492:2014-09