1、July 2009DEUTSCHE NORM English price group 11No part of this standard 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 83.140.20!$Xlc“1537364www
2、.din.deDDIN EN 438-8High-pressure decorative laminates (HPL) Sheets based on thermosetting resins (Usually called Laminates) Part 8: Classification and specifications for design laminatesEnglish version of DIN EN 438-8:2009-07Dekorative Hochdruck-Schichtpressstoffplatten (HPL) Platten auf Basis hrtb
3、arer Harze (Schichtpressstoffe) Teil 8: Klassifizierung und Spezifikationen fr Design-SchichtpressstoffeEnglische Fassung DIN EN 438-8:2009-07www.beuth.deDocument comprises 19 pagesDIN EN 438-8:2009-07 2 National foreword This standard has been prepared by Technical Committee CEN/TC 249 “Plastics” (
4、Secretariat: NBN, Belgium). The responsible German body involved in its preparation was the Normenausschuss Kunststoffe (Plastics Standards Committee), Technical Committee NA 054-04-01 AA Dekorative Schichtstoffe und Mineralwerkstoffe. The European Standards referred to in clause 2 have been publish
5、ed as the corresponding DIN EN Standards with the same number. For the International Standard ISO 11664-2 there is no national standard available. EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 438-8March 2009ICS 83.140.20English VersionHigh-pressure decorative laminates (HPL) - Sheets based onth
6、ermosetting resins (Usually called Laminates) - Part 8:Classification and specifications for design laminatesStratifis dcoratifs haute pression (HPL) - Plaques basede rsines thermodurcissables (communment appelesstratifis) - Partie 8 : Classification et spcificationsrelatives aux stratifis effets de
7、 surface spciauxDekorative Hochdruck-Schichtpressstoffplatten (HPL) -8: Klassifizierung und Spezifikationen fr Design-SchichtpressstoffeThis European Standard was approved by CEN on 22 February 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditi
8、ons for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three off
9、icial versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria,
10、Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FO
11、R STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 438-8:2009: EPlatten auf Basis hrtbarer Harze (Sch
12、ichtpressstoffe) - TeilEN 438-8:2009 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Material types and classification system 5 5 Requirements .6 5.1 Compliance .6 5.2 Inspection requirements .6 5.3 Dimensional tolerance requirements.7 5.4 Test requirem
13、ents . 11 Bibliography . 17 DIN EN 438-8:2009-07 EN 438-8:2009 (E) 3 Foreword This document (EN 438-8:2009) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the secretariat of which is held by NBN. This European Standard shall be given the status of a national standard, either by publ
14、ication of an identical text or by endorsement, at the latest by September 2009, and conflicting national standards shall be withdrawn at the latest by September 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CEN
15、ELEC shall not be held responsible for identifying any or all such patent rights. EN 438 consists of the following parts, under the general title High-pressure decorative laminates (HPL) Sheets based on thermosetting resins (Usually called Laminates): Part 1: Introduction and general information Par
16、t 2: Determination of properties Part 3: Classification and specifications for laminates less than 2 mm thick intended for bonding to supporting substrates Part 4: Classification and specifications for Compact laminates of thickness 2 mm and greater Part 5: Classification and specifications for floo
17、ring grade laminates less than 2 mm thick intended for bonding to supporting substrates Part 6: Classification and specifications for Exterior-grade Compact laminates of thickness 2 mm and greater Part 7: Compact laminate and HPL composite panels for internal and external wall and ceiling finishes P
18、art 8: Classification and specifications for design laminates (this standard) Part 9: Classification and specifications for alternative core laminates1According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Europe
19、an Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United K
20、ingdom. 1 In preparation. DIN EN 438-8:2009-07 EN 438-8:2009 (E) 4 1 Scope This part of EN 438 specifies performance requirements for high-pressure decorative laminates (HPL) intended for interior use with a design effect surface having a phenolic based core and a decorative surface, not covered by
21、EN 438-3 to EN 438-6. Three surface material types (metal, wood veneer and pearlescent decor) are defined in this part of EN 438. EN 438-2 specifies the test methods relevant to this part of EN 438. 2 Normative references The following referenced documents are indispensable for the application of th
22、is document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 438-2:2005, High-pressure decorative laminates (HPL) Sheets based on thermosetting resins (usually called Laminates) Part 2:
23、 Determination of properties EN 12721, Furniture Assessment of surface resistance to wet heat (ISO 4211-2:1993 modified) EN 12722, Furniture Assessment of surface resistance to dry heat (ISO 4211-3:1993 modified) EN ISO 178, Plastics Determination of flexural properties (ISO 178:2001) EN ISO 1183-1,
24、 Plastics Methods for determining the density of non-cellular plastics Part 1: Immersion method, liquid pyknometer method and titration method (ISO 1183-1:2004) ISO 11664-2, Colorimetry - Part 2: CIE standard illuminants 3 Terms and definitions For the purposes of this document, the following terms
25、and definitions apply. 3.1 high pressure process process for producing laminate(s) by simultaneous application of heat (temperature 120 C) and high specific pressure ( 5 MPa), to provide flowing and subsequent curing of the thermosetting resins 3.2 high-pressure decorative design laminate(s) (HPL) s
26、heet(s) consisting of decorative surface layers supported by layers of cellulosic fibrous material (normally paper) impregnated with thermosetting resins and bonded together by a high pressure process NOTE 1 For surface layers, see 3.3. NOTE 2 The core layers are impregnated with phenolic based resi
27、ns. The surface layers can appear on one or both side(s) of the laminate(s). They are not necessarily treated with thermosetting resin. In case of one-sided design laminates the back of the sheet(s) is made suitable for adhesive bonding to a substrate. 3.3 Types of high-pressure decorative design la
28、minates according to the surface layer materials 3.3.1 pearlescent laminate high-pressure decorative design laminate, the surface material of which consists of a pearlescent effect decorative paper, which is impregnated with melamine resin DIN EN 438-8:2009-07 EN 438-8:2009 (E) 5 NOTE 1 To achieve t
29、he optimum aesthetic effect from the pearlescent pigment a protective melamine layer is not used. NOTE 2 As a result some surface properties are reduced (e.g. scratch, wear) therefore it is recommended that these products are used for vertical applications. 3.3.2 metal laminate high-pressure decorat
30、ive design laminate, the surface material of which consists of a thin layer of metal NOTE 1 E.g. aluminium, steel or copper. NOTE 2 It is often protected by a thin layer of lacquer or in the case of aluminium the surface can be anodized. The surface performance and appearance of these metal laminate
31、s is equivalent to that of thin metal sheet. NOTE 3 As some surface properties are lower than that of melamine (e.g. scratch and wear), it is recommended that these products are used for vertical applications. 3.3.3 wood veneer laminate high-pressure decorative design laminate, the surface material
32、of which consists of a wood veneer, which is covered by a protective melamine layer. The surface appearance of these wood veneer laminates is similar to wood. Wood veneer laminates are not normally available in postforming grade 4 Material types and classification system High-pressure decorative des
33、ign laminates are defined using a three letter classification system as shown in Table 1. Table 1 High-pressure decorative design laminate classification system First letter Second letter Third letter A (Pearlescent laminate) M (Metal laminate) W (Wood veneer laminate) C (Compact) T (Thin laminate 5
34、 mm La 0,30 0,30 Tb 0,60 0,60 Resistance to immersion in boiling water 12 Appearance Rating (min.) gloss finish other finishes 3 4 3 4 3 4 3 4 3 4 Mass increase % (max.) 2 mm 5 mm 2,0 3,0 Thickness increase % (max.) 2 mm 5 mm 6,0 2,0 9,0 6,0 Resistance to staining 26 Appearance Rating (min.) Groups
35、1 and 2 Group 3 5 4 5 4 5 4 5 4 5 4 Light fastness (xenon arc) 27 Contrast Grey scale rating (min.) 4c4c4c4c4cResistance to water vapour 14 Appearance Rating (min.) 3 3 3 3 3 Resistance to cracking under stress (optional) 23 Appearance Rating (min.) 4 4 4 DIN EN 438-8:2009-07 EN 438-8:2009 (E) 13 Ta
36、ble 8 (Continued) Resistance to crazing 24 Appearance Rating (min.) 4 4 Flexural strength EN ISO 178dStress MPa (min.) 80 Flexural modulus EN ISO 178dStress MPa (min.) 9 000 Density EN ISO 1183-1 Density g/cm3(min) 1,35 1,35 1,35 1,35 1,35 aL = in the longitudinal (or machine) direction of the fibro
37、us sheet material (normally the direction of the longest dimension of the perlescent laminate). bT = in the cross-longitudinal (cross-machine) direction of the fibrous sheet material (at right angles to direction L). cExtraneous darkening and/or photocromism are due to the shock effect of accelerate
38、d exposure and are not characteristics of natural exposure. dMachined crosshead speed: 2 mm/min. DIN EN 438-8:2009-07 EN 438-8:2009 (E) 14 5.4.2 General requirements for metal laminates General requirements specified in Table 9. Table 9 General requirements for metal laminates Property Test method (
39、EN 438-2:2005 clause no. unless otherwise stated) Property or attribute Unit (max. or min.) Metal laminate grade MTS MTP MTF MCS MCF Resistance to scratching 25 Force Rating (min.) 1 1 1 1 1 Dimensional stability at elevated temperature 17 Cumulative dimensional change % (max.) La0,75 0,75 0,75 t 5
40、mm La 0,30 0,30 Tb 0,60 0,60 Resistance to immersion in boiling water 12 Appearance Core delamination Pass or fail Passc PasscPasscPasscPasscResistance to staining 26 Appearance Rating (min.) Groups 1 and 2 Group 3 4 4 4 4 4 4 4 4 4 4 Light fastness (xenon arc) 27 Contrast Grey scale rating (min.) 4
41、d 4d 4d 4d 4d Resistance to water vapour 14 Appearance Rating (min.) 3 3 3 3 3 Resistance to cracking under stress (optional) 23 Appearance Rating (min.) 4 4 4 Resistance to crazing 24 Appearance Rating (min.) 4 4 Flexural strength EN ISO 178e Stress MPa (min.) 80 Flexural modulus EN ISO 178e Stress
42、 MPa (min.) 9 000 Density EN ISO 1183-1 Density g/cm3 (min.) 1,35 1,35 1,35 1,35 1,35 aL = in the longitudinal (or machine) direction of the fibrous sheet material (normally the direction of the longest dimension of the metal laminate). bT = in the cross-longitudinal (cross-machine) direction of the
43、 fibrous sheet material (at right angles to direction L). cNo delamination of the core. dExtraneous darkening and/or photocromism are due to the shock effect of accelerated exposure and are not characteristics of natural exposure. eMachined crosshead speed: 2 mm/min. DIN EN 438-8:2009-07 EN 438-8:20
44、09 (E) 15 5.4.3 General requirements for wood veneer laminates General requirements specified in Table 10. Table 10 General requirements for wood veneer laminates Property Test method (EN 438-2:2005 clause no. unless otherwise stated) Property or attribute Unit (max or min) Wood veneer laminate grad
45、e WTS WTF WCS WCF Resistance to surface wear 10 Wear resistance revolutions (min.) initial point wear value 150 350 150 350 150 350 150 350 Resistance to impact by large diameter ball (optional) 21 Drop height Indent diameter mm (min.) mm (max.) 600 12 600 12 800 10 800 10 Resistance to scratching 2
46、5 Force Rating (min.) 22 2 2 Dimensional stability at elevated temperature 17 Cumulative dimensional change % (max.) La 0,75 0,90 t 5 mm La 0,45 0,45 Tb 0,75 0,75 Resistance to immersion in boiling water 12 Appearance Delamination pass or fail PasscPasscPasscPasscResistance to dry heat (100 C) EN 12
47、722 Appearance Rating (min.) 3 3 3 3 Resistance to wet heat (100 C) EN 12721 Appearance Rating (min.) 3 3 3 3 Resistance to staining 26 Appearance Rating (min.) Groups 1 and 2 Group 3 4 4 4 4 4 4 4 4 Light fastness (xenon arc) 27 Contrast Grey scale rating (min.) 2d2d2d2dResistance to cracking under
48、 stress (optional) 23 Appearance Rating (min.) 4 4 - Resistance to crazing 24 Appearance Rating (min.) 4 4 Flexural strength EN ISO 178e Stress MPa (min.) 65 Flexural modulus EN ISO 178e Stress MPa (min.) 6 500 Density EN ISO 1183-1 Density g/cm3 (min.) 1,0 1,0 1,1 1,1 DIN EN 438-8:2009-07 EN 438-8:
49、2009 (E) 16 Table 10 (Continued) aL = in the longitudinal (or machine) direction of the fibrous sheet material (normally the direction of the longest dimension of the wood veneer laminate). bT = in the cross-longitudinal (cross-machine) direction of the fibrous sheet material (at right angles to direction L). cNo delamination of the core. dSee 5.
