1、May 2013 Translation by DIN-Sprachendienst.English price group 10No 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).ICS 79
2、.080!%$*j“2010771www.din.deDDIN EN 13442Wood flooring and wood panelling and cladding Determination of the resistance to chemical agents;English version EN 13442:2013,English translation of DIN EN 13442:2013-05Holzfubden und Wand- und Deckenbekleidungen aus Holz Bestimmung der chemischen Widerstands
3、fhigkeit;Englische Fassung EN 13442:2013,Englische bersetzung von DIN EN 13442:2013-05Planchers en bois et lambris et bardages en bois Dtermination de la rsistance aux agents chimiques;Version anglaise EN 13442:2013,Traduction anglaise de DIN EN 13442:2013-05SupersedesDIN EN 13442:2003-06www.beuth.d
4、eDocument comprises 15 pagesIn case of doubt, the German-language original shall be considered authoritative.04.13DIN EN 13442:2013-05 2 A comma is used as the decimal marker. National foreword This document (EN 13442:2013) has been prepared by Technical Committee CEN/TC 175 “Round and sawn timber”
5、(Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Holzwirtschaft und Mbel (Timber and Furniture Standards Committee), Working Committee NA 042-01-14 AA Rund- und Schnittholz SpA zu CEN/TC 175 und ISO/TC 218. Amendments This standard differs
6、 from DIN EN 13442:2003-06 as follows: a) Subclause 6.1.2 “Light sources” has been modified; b) Table 1 “Test agents” has been modified; c) Annex A “Direct light source” has been added; d) the standard has been editorially revised. Previous editions DIN EN 13442: 2003-06 EUROPEAN STANDARD NORME EURO
7、PENNE EUROPISCHE NORM EN 13442 March 2013 ICS 79.080 Supersedes EN 13442:2002English Version Wood flooring and wood panelling and cladding - Determination of the resistance to chemical agents Planchers en bois et lambris et bardages en bois - Dtermination de la rsistance aux agents chimiques Holzfub
8、den und Wand- und Deckenbekleidungen aus Holz - Bestimmung der chemischen WiderstandsfhigkeitThis European Standard was approved by CEN on 5 February 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the s
9、tatus 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-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French,
10、 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 the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cr
11、oatia, Cyprus, 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
12、 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13442:2
13、013: EEN 13442:2013 (E) 2 Contents Page Foreword 3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Principle 5 5 Test pieces and test specimens .5 5.1 Dimensions .5 5.2 Sampling .6 6 Equipment and materials 6 6.1 Apparatus .6 6.2 Test equipment 7 6.3 Chemical agents 7
14、 7 Procedure .9 7.1 Test pieces and test specimen .9 7.2 Chemical test 9 8 Examination of the test piece .9 8.1 Rating code 9 8.2 Procedure 10 9 Expression of results . 10 9.1 For each test area . 10 9.2 For each test agent . 10 9.3 For the whole test . 10 10 Test report . 10 Annex A (informative) D
15、irect light source 12 Bibliography . 13 DIN EN 13442:2013-05 EN 13442:2013 (E) 3 Foreword This document (EN 13442:2013) has been prepared by Technical Committee CEN/TC 175 “Round and sawn timber”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a nation
16、al standard, either by publication of an identical text or by endorsement, at the latest by September 2013 and conflicting national standards shall be withdrawn at the latest by September 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of pat
17、ent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13442:2002. The following modifications have been made: 6.1.2, light sources has been modified; Table 1, test agent has been modified; A new Annex A has been added.
18、 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, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Ge
19、rmany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 13442:2013-05 EN 13442:2013 (E) 4 Introduction This standard is one of a series
20、 of standards about wood in flooring (including parquet) and wood panelling and cladding. DIN EN 13442:2013-05 EN 13442:2013 (E) 5 1 Scope This European Standard specifies a test method to determine the resistance of the surface of an element of wood flooring, panelling and cladding, to a predetermi
21、ned list of chemical agents they may be exposed to during their service life. 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 references, only the edition cited applies. For undated
22、references, the latest edition of the referenced document (including any amendments) applies. EN 13756:2002, Wood flooring Terminology EN ISO 3668, Paints and varnishes Visual comparison of the colour of paints (ISO 3668) 3 Terms and definitions For the purposes of this document, the terms and defin
23、itions given in EN 13756:2002 and the following apply. 3.1 test piece part, of a size suitable for testing, taken from an element 3.2 test specimen either a full element or an assembly of elements to be tested 3.3 test surface part of the test piece, where the test area is located Note 1 to entry: F
24、or products made from small elements the test piece can be the same as the test specimen. 3.4 test area area under the Petri dish 3.5 reference area any unexposed surface of the test specimen close to the test area but outside the Petri dish 4 Principle Application of a liquid test agent to a surfac
25、e by means of saturated paper, covered by a glass Petri dish. After a specified period of time, removal of the paper, washing and drying of the surface and examination for visible change. Assessment of the test results in terms of a numerical rating code. 5 Test pieces and test specimens 5.1 Dimensi
26、ons A test piece shall have a minimum size of 80 mm by 80 mm by the thickness of the element, see Figure 1. DIN EN 13442:2013-05 EN 13442:2013 (E) 6 Dimensions in millimetres Key 1 test surface 2 test area 3 Petri dish l1 80 + 60(n - 1), minimum distance between the edge and the next test area(s) ac
27、cording to the number of test areas l2 20 mm, minimum distance between any test area and the edge or another test arean number of test areas Figure 1 Dimensions of a test piece If the size of the element delivered by the manufacturer does not allow the cutting of a test piece, a test specimen shall
28、be assembled in accordance with the manufacturers specification, which allows to cut the necessary test pieces. 5.2 Sampling Three test pieces or test specimens shall be tested for each agent to be applied. 6 Equipment and materials 6.1 Apparatus 6.1.1 Conditioning If a conditioning system is availa
29、ble, the following climate shall be used: temperature (23 2) C ; relative humidity (50 5) % . DIN EN 13442:2013-05 EN 13442:2013 (E) 7 6.1.2 Light sources The following types of lights are considered: diffused light source and direct light source. 6.1.2.1 Diffused light source This source provides e
30、venly diffused light, giving an illumination on the test area of between 2 000 Ix and 5 000 lx. The light source shall have a correlated colour temperature of (6 500 50) K and an Ra(the indication of depiction of colours) greater than 92, by using a colour matching booth in accordance with EN ISO 36
31、68. 6.1.2.2 Direct light source. This source may be used in addition to the diffused light source. It is described in Annex A. NOTE This source may give different information than the diffused light source for specific applications. 6.2 Test equipment 6.2.1 Pieces of cellulose filter paper to apply
32、each of the test agents, free of dyes and of chemicals, with a grammage of 400 g/m2 to 500 g/m2. They shall have an area of (500 50) mm2. Their shape shall be chosen to suit the surface of a small element or a small single parquet strip without overlapping the edges of the element or parquet strip t
33、o be tested. 6.2.2 Glass Petri dish. 6.2.3 Pair of tweezers. 6.2.4 Absorbent paper or tissue, with good absorbent properties, free of dyes and of chemicals. 6.2.5 White, soft, absorbent cotton cloths. 6.2.6 Vessels for containing test agents during soaking of filter paper. 6.3 Chemical agents 6.3.1
34、Test agents The test agents are listed in Table 1. DIN EN 13442:2013-05 EN 13442:2013 (E) 8 Table 1 Test agents Agent Initial temperature of the agent 5 C C Duration Distilled water (see 6.3.2.1) 20 (24 1) h Detergent (see 6.3.2.2) 20 (24 1) h Acetone, purity grade min. mass fraction of 99,5 % 20 (1
35、20 10) s Ethanol, chemical pure, not denaturated, mass fraction of 50 % in distilled water 20 (24 1) h Plain red wine, alcohol with a volume fraction of 10 % to 12 % 20 (24 1) h Red wine vinegar, acetic acid solution with a volume fraction of 3 % to 5 % 20 (24 1) h Olive oil 20 (24 1) h Cows milka ,
36、 mass fraction of 3 % to 5 % fat 20 (24 1) h Coffeea, 40 g instant, freeze-dried coffee per l of boiling water 80 (24 1) h Black tea, 10 g of tea leaves is infused with 1 l of boiling water. Tea is allowed to draw for 5 min. 80 (24 1) h Ammonia solutionb at 10 % in water 20 (8 1) h Blue/black ink 20
37、 (24 1) h aThe test agents cows milk, coffee and tea can be used only for four hours. bThe ammonia solution can be used only for one month. The test agents shall be stored in sealed glass bottles in a dark place and shall be conditioned to the test temperature prior to use. Cows milk, coffee, tea an
38、d wine shall be fresh. 6.3.2 Cleansing agents 6.3.2.1 Distilled water, not only deionised. 6.3.2.2 House keeping detergent, of the following composition: a) a mass fraction of 12,5 % of a sodium -1-alkyl-arylsulphonate, where alkyl is a linear 12-14 C alkyl group; b) a mass fraction of 12,5 % polyet
39、hoxylated derivates of primary or secondary (C8- C16) alcohols with 5 to 15 ethoxylated groups having a cloud point of 25 C to 75 C in 1 % by weight aqueous solution (determination of cloud point is described in ISO 1065); c) a mass fraction of 5 % ethanol, chemical pure, not denaturated, minimum ma
40、ss fraction of 96 %; d) a mass fraction of 70 % water (see 6.3.2.1). DIN EN 13442:2013-05 EN 13442:2013 (E) 9 The house keeping detergent shall be stored in a glass bottle in a cool dark place and should be used within 1 year of the day of preparation. 6.3.2.3 Cleansing solution containing 15 ml/l o
41、f the house keeping detergent (see 6.3.2.2) in water (see 6.3.2.1). This solution shall be freshly prepared on each occasion. 7 Procedure 7.1 Test pieces and test specimen If the test piece or test specimen is coated, carry out the test after full curing of the coating. Relevant information shall be
42、 provided by the manufacturer. Wipe the test surface carefully with a dry cloth (see 6.2.5) before testing. 7.2 Chemical test Immediately after the conditioning, if any, carry out the test in an atmosphere of (23 2) C. Place the test surface horizontally. Test it with the test agents specified in 6.
43、3.1 at test areas, their centre being not more and not less than 60 mm apart, centre to centre and not less than 40 mm from any edge of the test surface. Immerse a piece of filter paper (see 6.2.1) into a test agent (see 6.3.1) for (30 1) s, lift with the pair of tweezers (see 6.2.3) and wipe off ag
44、ainst the edge of the vessel (see 6.2.6). Quickly place the filter paper on the test area and immediately cover with an inverted glass Petri dish (see 6.2.2). The filter paper shall not touch the edge of the glass Petri dish. Record the position of each impregnated paper on each test area for each t
45、est agent. After the stated duration for each test agent used (see 6.3.1), remove the glass Petri dish and lift off the filter paper with the pair of tweezers. Do not remove fibres of paper adhering to the test area. Soak up any remaining test agent with the absorbent paper (see 6.2.4) without rubbi
46、ng and leave the test surface undisturbed for 16 h to 24 h in the test atmosphere without covering it. The test area shall be sufficiently protected against dust without limiting in any way the free access of air. After the expiry of the 16 h to 24 h, wash the test surface by lightly rubbing it with
47、 the absorbent paper or tissue (see 6.2.4) soaked in cleansing solution (see 6.3.2.3) and then with another absorbent paper or tissue soaked in distilled water (see 6.3.2.1). Finally wipe the surface carefully with a dry cloth (see 6.2.5). At the same time, wash and dry the same way a reference area
48、 on the test surface that has not been exposed to the test agent. Leave the test surface undisturbed, without covering it, for (30 1) min in the test atmosphere, then proceed to the examination (see Clause 8). 8 Examination of the test piece 8.1 Rating code Rate the test area by comparison with the
49、reference area for each test agent according to the following numerical rating code: 5 No visible changes (no damage). DIN EN 13442:2013-05 EN 13442:2013 (E) 10 4 Slight change in gloss level and colour visible only when the light source is mirrored in the test surface on or quite near the mark and is reflected towards the observers eye, or a few isolated marks just visible. 3 Slight mark, visible in several viewing directions; for example, almost the complete shape of the filter paper is ju
