1、June 2016 English price group 32No 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 83.140.20!%Vu|“2518289www.din.deDIN
2、 EN 438-2High-pressure decorative laminates (HPL) Sheets based on thermosetting resins (usually called laminates) Part 2: Determination of properties;English version EN 438-2:2016,English translation of DIN EN 438-2:2016-06Dekorative Hochdruck-Schichtpressstoffplatten (HPL) Platten auf Basis hrtbare
3、r Harze (Schichtpressstoffe) Teil 2: Bestimmung der Eigenschaften;Englische Fassung EN 438-2:2016,Englische bersetzung von DIN EN 438-2:2016-06Stratifis dcoratifs haute pression (HPL) Plaques base de rsines thermodurcissables (communment appeles stratifis) Partie 2: Dtermination des proprits;Version
4、 anglaise EN 438-2:2016,Traduction anglaise de DIN EN 438-2:2016-06SupersedesDIN EN 438-2:2005-04www.beuth.deDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.Document comprises 100 pages 06.16 2 A comma is used as the decimal marker.
5、 National foreword This document (EN 438-2:2016) has been prepared by Technical Committee CEN/TC 249 “Plastics” (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was DIN-Normenausschuss Kunststoffe (DIN Standards Committee Plastics), Working Committee NA 054-04-01
6、AA Dekorative Schichtstoffe und Mineral-werkstoffe. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 48 DIN ISO 48 ISO 105-A02 DIN EN 20105-A02 Amendments This standard differs from DIN EN 438-2:2005-04 as follows: a) normative reference
7、s have been updated; b) Clause 3 “Terms and definitions” now only includes a reference to EN 438-1; c) Subclause 4.4 “Procedure” has been revised taking into account the Tappi Size Estimation Chart; d) Clause 1 “Scope” now includes details regarding the precision of the test methods; e) Clause 11 “R
8、esistance to abrasion (flooring grade laminates)” has been revised; f) Clause 16 “Resistance to dry heat” has been revised and restructured; g) Clause 18 “Resistance to wet heat” has been revised and restructured; h) in Subclause 20.5 “Calibration of the impact tester”, a formula for correcting the
9、force Fxand calculating the regression coefficient R has been included; i) the test method for determining the resistance to cigarette burns (formerly Clause 30) has been deleted; j) a new Clause 30 “Determination of the microscratch resistance” has been included; k) an informative Annex A “Surface
10、finish and colour influence on surface evaluations” has been included; l) an informative Annex B “Calibration and maintenance of abrasion equipment” has been included; m) a normative Annex C “Measurement of shore A hardness” has been included; n) the standard has been editorially revised. DIN EN 438
11、-2:2016-06 3 Previous editions DIN 16926: 1960-09, 1968-07, 1975-05, 1986-01, 1987-10 DIN 53799: 1960-09, 1968-07, 1975-05, 1986-01 DIN 68751: 1964-07, 1968-07, 1976-03, 1987-11 DIN 53799-10: 1982-08 DIN EN 438-1: 1992-02, 1992-12 DIN EN 438-2: 1992-02, 2005-04 DIN EN 438-2:2016-06 4 National Annex
12、NA (informative) Bibliography DIN ISO 48, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD) DIN EN 20105-A02, Textiles Tests for colour fastness Part A02: Grey scale for assessing change in colour DIN EN 438-2:2016-06 EUROPEAN STANDARD NORME EUROPE
13、NNE EUROPISCHE NORM EN 438-2 February 2016 ICS 83.140.20 Supersedes EN 438-2:2005English Version High-pressure decorative laminates (HPL) - Sheets based on thermosetting resins (usually called laminates) - Part 2: Determination of properties Stratifis dcoratifs haute pression (HPL) - Plaques base de
14、 rsines thermodurcissables (communment appeles stratifis) - Partie 2: Dtermination des proprits Dekorative Hochdruck-Schichtpressstoffplatten (HPL) -Platten auf Basis hrtbarer Harze (Schichtpressstoffe) -Teil 2: Bestimmung der Eigenschaften This European Standard was approved by CEN on 13 December 2
15、015. CEN members are bound to 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
16、 on application to the CEN-CENELEC 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-CE
17、NELEC Management Centre has 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, It
18、aly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Ave
19、nue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 438-2:2016 EEN 438-2:2016 (E) 2 Contents Page European foreword 8 1 Scope 9 2 Normative references 9 3 Terms and definitions . 10 4 Assessment of a
20、ppearance . 10 4.1 Principle 10 4.2 Apparatus . 10 4.3 Test specimen . 10 4.4 Procedure . 10 4.5 Test report . 11 5 Determination of thickness . 11 5.1 Principle 11 5.2 Apparatus . 11 5.3 Test specimen . 11 5.4 Procedure . 11 5.5 Test report . 11 6 Determination of length and width 12 6.1 Principle
21、12 6.2 Apparatus . 12 6.3 Test specimen . 12 6.4 Procedure . 12 6.5 Expression of results . 12 6.6 Test report . 12 7 Determination of edge straightness . 12 7.1 Principle 12 7.2 Apparatus . 12 7.3 Test specimen . 13 7.4 Procedure . 13 7.5 Expression of results . 13 7.6 Test report . 13 8 Determinat
22、ion of edge squareness . 14 8.1 Principle 14 8.2 Apparatus . 14 8.3 Test specimen . 14 8.4 Procedure . 14 8.5 Expression of results . 14 8.6 Test report . 14 9 Determination of flatness . 15 9.1 Principle 15 9.2 Apparatus . 15 9.3 Test specimens . 15 DIN EN 438-2:2016-06 EN 438-2:2016 (E) 3 9.4 Proc
23、edure . 15 9.5 Expression of results . 15 9.6 Test report . 16 10 Resistance to surface wear.16 10.1 Principle . 16 10.2 Materials 16 10.3 Apparatus 17 10.4 Test specimens 18 10.5 Preparation of specimens and abrasive paper . 19 10.6 Procedure 19 10.6.1 Preparation of abrasive wheels . 19 10.6.2 Cal
24、ibration of abrasive paper 19 10.6.3 Abrasion of specimen . 19 10.7 Expression of results . 20 10.8 Test report . 20 11 Resistance to abrasion (flooring grade laminates) .20 12 Resistance to immersion in boiling water 21 12.1 Principle . 21 12.2 Apparatus 21 12.3 Test specimens 21 12.4 Procedure 21
25、12.5 Expression of results . 22 12.5.1 Calculation 22 12.5.2 Surface rating scale . 22 12.5.3 Edge rating scale 23 12.6 Test report . 23 13 Substrate protection against water vapour .23 13.1 Principle . 23 13.2 Apparatus 23 13.3 Test specimens 23 13.4 Procedure 24 13.5 Expression of results . 24 13.
26、6 Test report . 24 14 Resistance to water vapour .25 14.1 Principle . 25 14.2 Apparatus 25 14.3 Test specimen 25 14.4 Procedure 25 14.5 Expression of results . 26 14.6 Test report . 26 15 Resistance to wet conditions (Exterior grade laminates) 27 15.1 Principle . 27 15.2 Apparatus 27 15.3 Test speci
27、mens 28 15.4 Procedure 28 15.5 Expression of results . 28 15.5.1 Calculation 28 15.5.2 Visual examination 28 DIN EN 438-2:2016-06 EN 438-2:2016 (E) 4 15.6 Test report . 29 16 Resistance to dry heat . 29 16.1 Principle . 29 16.2 Apparatus and materials . 30 16.3 Test specimen 31 16.4 Test procedure .
28、 31 16.5 Examination of the test specimen 32 16.6 Expression of results . 32 16.7 Test report . 32 17 Dimensional stability at elevated temperature . 33 17.1 Principle . 33 17.2 Apparatus 33 17.3 Test specimens 33 17.4 Procedure 33 17.5 Expression of results . 34 17.6 Test report . 34 18 Resistance
29、to wet heat . 35 18.1 Principle . 35 18.2 Apparatus and materials . 35 18.3 Test specimens 36 18.4 Procedure 36 18.5 Expression of results . 37 18.6 Test report . 37 19 Resistance to climatic shock (exterior grade laminates) . 37 19.1 Principle . 37 19.2 Apparatus 37 19.3 Test specimens 38 19.4 Proc
30、edure 38 19.5 Expression of results . 39 19.5.1 Flexural strength and modulus of elasticity in flexure . 39 19.5.2 Appearance . 39 19.6 Test report . 39 20 Resistance to impact by small-diameter ball 40 20.1 Principle . 40 20.2 Materials . 40 20.3 Apparatus 40 20.4 Test specimens 43 20.5 Calibration
31、 of the impact tester 43 20.6 Procedure 44 20.7 Expression of results . 45 20.8 Test report . 45 21 Resistance to impact by large diameter ball . 45 21.1 Principle . 45 21.2 Materials . 46 21.3 Apparatus 46 21.4 Test specimens 46 21.5 Procedure 46 DIN EN 438-2:2016-06 EN 438-2:2016 (E) 5 21.6 Expres
32、sion of results . 48 21.7 Test report . 49 22 Resistance to impact by large diameter ball (flooring grade laminates) 49 22.1 Principle . 49 22.2 Materials 49 22.3 Apparatus 49 22.4 Test specimens 50 22.5 Procedure 50 22.6 Expression of results . 50 22.7 Test report . 50 23 Resistance to cracking und
33、er stress (laminates 2 mm thick) 51 23.1 Principle . 51 23.2 Apparatus 51 23.3 Test specimens 51 23.4 Procedure 53 23.5 Expression of results . 53 23.6 Test report . 54 24 Resistance to crazing (Compact laminates) .55 24.1 Principle . 55 24.2 Apparatus 55 24.3 Test specimens 55 24.4 Procedure 55 24.
34、5 Expression of results . 55 24.6 Test report . 56 25 Resistance to scratching .57 25.1 Principle . 57 25.2 Materials 57 25.3 Apparatus 57 25.4 Calibration of apparatus 59 25.5 Test specimen 59 25.6 Procedure 59 25.7 Expression of results . 63 25.8 Test report . 63 26 Resistance to staining 63 26.1
35、Principle . 63 26.2 Staining agents 63 26.3 Apparatus and Materials . 65 26.4 Test specimens 66 26.5 Test procedure 66 26.6 Examination of the test panel 67 26.7 Assessment of results . 67 26.8 Test report . 68 27 Light fastness (Xenon arc) 68 27.1 Principle . 68 27.2 Apparatus 68 27.3 Test specimen
36、 69 27.4 Procedure 69 DIN EN 438-2:2016-06 EN 438-2:2016 (E) 6 27.5 Assessment and expression of results . 69 27.6 Test report . 70 28 Resistance to UV light (Exterior grade laminates) 70 28.1 Principle . 70 28.2 Apparatus 70 28.3 Test specimens 70 28.4 Procedure 71 28.5 Evaluation and expression of
37、 results . 71 28.5.1 General 71 28.5.2 Contrast 71 28.5.3 Appearance . 71 28.6 Test report . 71 29 Resistance to artificial weathering (Exterior grade laminates) . 72 29.1 Principle . 72 29.2 Apparatus 72 29.3 Test specimens 73 29.4 Procedure 73 29.5 Examination and expression of results . 73 29.5.1
38、 General 73 29.5.2 Contrast 73 29.5.3 Appearance . 74 29.6 Test report . 74 30 Determination of the microscratch resistance . 74 30.1 Principle . 74 30.2 Terms and definitions . 74 30.3 Apparatus and materials . 75 30.4 Assembly and maintenance of the Martindale tester 77 30.5 Method for checking th
39、e Lissajous figure . 77 30.6 Preparation and conditioning . 77 30.6.1 Preparation . 77 30.6.2 Test surface . 78 30.7 Test procedure . 78 30.7.1 General 78 30.7.2 Testing 78 30.8 Classification of the image after scratching according to procedure B 79 30.9 Test report . 80 31 Formability (Method A) 8
40、1 31.1 Principle . 81 31.2 Apparatus 81 31.3 Test specimens 82 31.4 Procedure 82 31.4.1 Calibration of test apparatus . 82 31.4.2 Test procedure 83 31.5 Test report . 84 32 Formability (Method B) 84 32.1 Principle . 84 32.2 Apparatus 85 32.3 Test specimens 85 DIN EN 438-2:2016-06 EN 438-2:2016 (E) 7
41、 32.4 Procedure 86 32.5 Test report . 87 33 Resistance to blistering (Method A) .88 33.1 Principle . 88 33.2 Apparatus 88 33.3 Test specimens 88 33.4 Procedure 88 33.4.1 Calibration of test apparatus . 88 33.4.2 Test procedure 88 33.5 Test report . 88 34 Resistance to blistering (Method B) .89 34.1
42、Principle . 89 34.2 Apparatus 89 34.3 Test specimens 89 34.4 Procedure 89 34.4.1 General . 89 34.4.2 Calibration of test apparatus . 89 34.4.3 Test procedure 89 34.5 Test report . 89 Annex A (informative) Surface finish and colour influence on surface evaluations .91 Annex B (informative) Calibratio
43、n and maintenance of abrasion equipment 92 B.1 General 92 B.2 Apparatus .92 B.3 Procedure .92 B.3.1 Bearing Wear 92 B.3.2 Shaft Wear 92 B.3.3 Alignment .93 Annex C (normative) Measurement of shore A hardness 96 DIN EN 438-2:2016-06 EN 438-2:2016 (E) 8 European foreword This document (EN 438-2:2016)
44、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 publication of an identical text or by endorsement, at the latest by August 2016, and conflicting national stand
45、ards shall be withdrawn at the latest by August 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 438-
46、2:2005. EN 438, High-pressure decorative laminates (HPL) Sheets based on thermosetting resins (usually called laminates), consists of the following parts: Part 1: Introduction and general information Part 2: Determination of properties Part 3: Classification and specifications for laminates less tha
47、n 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 flooring grade laminates less than 2 mm thick intended for bonding to supporting substrates Part 6: C
48、lassification 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 Part 8: Classification and specifications for design laminates Part 9: Classification and specific
49、ations for alternative core laminates 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, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Pola
