1、BSI Standards PublicationBS EN 438-2:2016High-pressure decorativelaminates (HPL) Sheetsbased on thermosetting resins(usually called laminates)Part 2: Determination of propertiesBS EN 438-2:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 438-2:2016. Itsupers
2、edes BS EN 438-2:2005 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/76, Laminated sheet for decorative purposes.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to i
3、nclude all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 87157 3ICS 83.140.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This Br
4、itish Standard was published under the authority of theStandards Policy and Strategy Committee on 29 February 2016.Amendments issued since publicationDate Text affectedBS EN 438-2:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORMEN 438-2 February 2016 ICS 83.140.20 Supersedes EN 438-2:2005Englis
5、h 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 rsines thermodurcissables (communment appeles stratifis) - Partie 2: Dtermination des
6、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 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
7、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-CENELEC Management Centre or to any CEN member. This Europ
8、ean 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 the same status as the official versions. CEN members are
9、 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, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Rom
10、ania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by
11、 any means reserved worldwide for CEN national Members. Ref. No. EN 438-2:2016 EBS EN 438-2:2016EN 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 appearance . 10 4.1 Principle 10 4.2 Apparatus . 10 4.3 Test specimen
12、. 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 12 6.2 Apparatus . 12 6.3 Test specimen . 12 6.4 Procedure . 12 6.5 E
13、xpression 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 Determination of edge squareness . 14 8.1 Principle 14 8.2 Apparatus . 14 8.3 T
14、est 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 BS EN 438-2:2016EN 438-2:2016 (E) 3 9.4 Procedure . 15 9.5 Expression of results . 15 9.6 Test report . 16 10 Resistan
15、ce 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 Calibration of abrasive paper 19 10.6.3 Abrasion of specimen . 19 10.7 Expres
16、sion 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 12.5 Expression of results . 22 12.5.1 Calculation 22 12.5.2 Surface ratin
17、g 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 13.6 Test report . 24 14 Resistance to water vapour .25 14.1 Principle . 25 1
18、4.2 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 specimens 28 15.4 Procedure 28 15.5 Expression of results . 28 15.5.1 Calculati
19、on 28 15.5.2 Visual examination 28 BS EN 438-2:2016EN 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 . 31 16.5 Examination of the test specimen 32 16.6 Expression of results . 32 16
20、.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 to wet heat . 35 18.1 Principle . 35 18.2 Apparatus and materials . 35 18.3 Tes
21、t 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 Procedure 38 19.5 Expression of results . 39 19.5.1 Flexural strength and modulus o
22、f 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 of the impact tester 43 20.6 Procedure 44 20.7 Expression of results . 45 20.8
23、 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 BS EN 438-2:2016EN 438-2:2016 (E) 5 21.6 Expression of results . 48 21.7 Test report . 49 22 Resistance to impact by large diameter
24、 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 under stress (laminates 2 mm thick) 51 23.1 Principle . 51 23.2 Apparatus 51 23.3 Test
25、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 24.5 Expression of results . 55 24.6 Test report . 56 25 Resistance to scratching .57 2
26、5.1 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 Principle . 63 26.2 Staining agents 63 26.3 Apparatus and Materials . 65 26.4 Test s
27、pecimens 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 69 27.4 Procedure 69 BS EN 438-2:2016EN 438-2:2016 (E) 6 27.5 Assessment and expres
28、sion 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 results . 71 28.5.1 General 71 28.5.2 Contrast 71 28.5.3 Appearance . 71 28.6 Test repor
29、t . 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 General 73 29.5.2 Contrast 73 29.5.3 Appearance . 74 29.6 Test report . 74 30 Determinat
30、ion 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 7730.5 Method for checking the Lissajous figure . 77 30.6 Preparation and conditioning . 77 30.6.1 Preparation . 77 30.
31、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) 81 31.1 Principle . 81 31.2 Apparatus 81 31.3 Test specimens 82 31.4 Procedure 82 31.4.1 Ca
32、libration 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 BS EN 438-2:2016EN 438-2:2016 (E) 7 32.4 Procedure 86 32.5 Test report . 87 33 Resistance to blistering (Method A) .88 33.1 Princi
33、ple . 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 Principle . 89 34.2 Apparatus 89 34.3 Test specimens 89 34.4 Procedure 89 34.4.1 General . 89 3
34、4.4.2 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) Calibration and maintenance of abrasion equipment 92 B.1 General 92 B.2 Apparatus .92 B.3 Procedure .92 B
35、.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 BS EN 438-2:2016EN 438-2:2016 (E) 8 European foreword This document (EN 438-2:2016) has been prepared by Technical Committee CEN/TC 249 “Plastics“, the secretariat of which is held by
36、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 standards shall be withdrawn at the latest by August 2016. Attention is drawn to the possibility that som
37、e 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 438-2:2005. EN 438, High-pressure decorative laminates (HPL) Sheets based on thermosetting resins (usual
38、ly 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 than 2 mm thick intended for bonding to supporting substrates Part 4: Classification and specifications
39、 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: Classification and specifications for Exterior-grade Compact laminates of thickness 2 mm and greater
40、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 specifications for alternative core laminates According to the CEN-CENELEC Internal Regulations, the nationa
41、l 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, Lithua
42、nia, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 438-2:2016EN 438-2:2016 (E) 9 1 Scope This European Standard specifies the methods of test for determination of the properties of high-pressure
43、 decorative laminates as defined in Clause 3. These methods are primarily intended for testing the sheets specified in EN 438-3, EN 438-4, EN 438-5, EN 438-6, EN 438-8, and EN 438-9. The precision of the test methods, specified in this European Standard, is not known because inter-laboratory data ar
44、e not yet available. When inter-laboratory data will be obtained, precision statements will be added to the test method at the following revision. For those test methods having an end point determination based on subjective judgement, it is not meaningful to make a statement of precision. 2 Normativ
45、e 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 references, the latest edition of the referenced document (including any amendments) app
46、lies. EN 204, Classification of thermoplastic wood adhesives for non-structural applications EN 312, Particleboards Specifications EN 316, Wood fibre boards Definition, classification and symbols EN 438-1, High-pressure decorative laminates (HPL) Sheets based on thermosetting resins (usually called
47、laminates) Part 1: Introduction and general information EN ISO 62, Plastics Determination of water absorption (ISO 62) EN ISO 178, Plastics Determination of flexural properties (ISO 178) EN ISO 291, Plastics Standard atmospheres for conditioning and testing (ISO 291) EN ISO 2813, Paints and varnishe
48、s Determination of gloss value at 20, 60 and 85 (ISO 2813) EN ISO 3668, Paints and varnishes Visual comparison of the colour of paints (ISO 3668) EN ISO 4287, Geometrical product specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters (ISO 4287) EN ISO
49、4288, Geometrical product specifications (GPS) Surface texture: Profile method Rules and procedures for the assessment of surface texture (ISO 4288) EN ISO 4892-1, Plastics Methods of exposure to laboratory light sources Part 1: General guidance (ISO 4892-1) EN ISO 4892-2:2013, Plastics Methods of exposure to laboratory light sources Part 2: Xenon-arc lamps (ISO 4892-2:2013) EN ISO 4892-3, Plastics Methods of exposure to laboratory light sources Part 3: Fluorescent UV lamps (ISO 4892-3) EN ISO 6506-1, Metal
