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EN 438-3-2016 en High-pressure decorative laminates (HPL) - Sheets based on thermosetting resins (usually called laminates) - Part 3 Classification and specifications for laminates.pdf

1、BSI Standards PublicationBS EN 438-3:2016High-pressure decorativelaminates (HPL) Sheetsbased on thermosetting resins(usually called laminates)Part 3: Classification and specifications forlaminates less than 2 mm thick intended forbonding to supporting substratesBS EN 438-3:2016 BRITISH STANDARDNatio

2、nal forewordThis British Standard is the UK implementation of EN 438-3:2016. Itsupersedes BS EN 438-3:2005 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/76, Laminated sheet for decorative purposes.A list of organizations represented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 commit

3、tee can beobtained on request to its secretary.This publication does not purport to include 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 87155 9ICS 83.140.20Co

4、mpliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 29 February 2016.Amendments issued since publicationDate Text affectedBS EN 438-3:2016EUROPEAN STANDARD NORME EUROPEN

5、NE EUROPISCHE NORMEN 438-3 February 2016 ICS 83.140.20 Supersedes EN 438-3:2005English Version High-pressure decorative laminates (HPL) - Sheets based on thermosetting resins (usually called laminates) - Part 3: Classification and specifications for laminates less than 2 mm thick intended for bondin

6、g to supporting substrates Stratifis dcoratifs haute pression (HPL) - Plaques base de rsines thermodurcissables (communment appeles stratifis) - Partie 3: Classification et spcifications des stratifis dpaisseur infrieure 2 mm destins tre colls sur des supports Dekorative Hochdruck-Schichtpressstoffp

7、latten (HPL) - Platten auf Basis hrtbarer Harze (Schichtpressstoffe) - Teil 3: Klassifizierung und Spezifikationen fr Platten mit einer Dicke kleiner als 2 mm, vorgesehen zum Verkleben auf ein Trgermaterial This European Standard was approved by CEN on 13 December 2015. CEN members are bound to comp

8、ly 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-CENELEC

9、 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 the sa

10、me 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, Luxembourg

11、, 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: Avenue Marnix 17, B-1000 Brussels 201

12、6 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 438-3:2016 EBS EN 438-3:2016EN 438-3:2016 (E) 2 Contents Page European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions, symbols and abbreviations 4 3.1 T

13、erms and definitions .4 3.2 Symbols .5 4 Material types . 5 5 Requirements 5 5.1 General 5 5.2 Numerical classification system .5 5.3 Alphabetical classification system .6 5.4 Nomenclature .7 6 Requirements 8 6.1 Compliance 8 6.2 Inspection requirements .8 6.2.1 General .8 6.2.2 Colour and pattern 8

14、 6.2.3 Surface finish .8 6.2.4 Reverse side .8 6.2.5 Visual inspection 8 6.3 Dimensional tolerance requirements.9 6.4 Test requirements . 10 6.4.1 General requirements . 10 6.4.2 Additional requirements for Type P laminates 12 6.4.3 Requirements for reaction to fire 12 6.5 Supplemental properties 12

15、 Annex A (informative) Addendum to sub-clause 6.4.3, relating to fire performance 14 Bibliography . 16 BS EN 438-3:2016EN 438-3:2016 (E) 3 European foreword This document (EN 438-3:2016) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the secretariat of which is held by NBN. This Eur

16、opean 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 some of the elem

17、ents 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 438-3:2005. EN 438, High-pressure decorative laminates (HPL) Sheets based on thermosetting resins (usually called lam

18、inates), 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 for Compact

19、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 Part 7: Compa

20、ct 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 national standards o

21、rganizations 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, Luxembou

22、rg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 438-3:2016EN 438-3:2016 (E) 4 1 Scope This European Standard applies to laminates less than 2 mm thick produced by using an high pressure process, normally

23、intended for bonding to supporting substrates to produce HPL composite panels and establishes a classification system for high-pressure decorative laminates according to their performance and main recommended fields of application, including materials with special characteristics, for example formab

24、ility or defined reaction to fire. This European Standard also specifies requirements for the properties of the various types of laminates covered by this classification system. High-pressure decorative laminates are characterised by their qualities, durability and functional performance. HPL sheets

25、 are available in a wide variety of colours, patterns and surface finishes; they are resistant to wear, scratching, impact, moisture, heat and staining; and possess good hygienic and anti-static properties, being easy to clean and maintain. EN 438-2 specifies the methods of test relevant to this Eur

26、opean Standard. EN 438-4, EN 438-5, EN 438-6, EN 438-7, EN 438-8 and EN 438-9 are reserved for special types of HPL materials. 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 referen

27、ces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 438-2:2016, High-pressure decorative laminates (HPL) Sheets based on thermosetting resins (usually called laminates) Part 2: Determination of properties E

28、N 13501-1, Fire classification of construction products and building elements Part 1: Classification using data from reaction to fire tests EN 13722, Furniture Assessment of the surface gloss EN 61340-4-1, Electrostatics Part 4-1: Standard test methods for specific applications Electrical resistance

29、 of floor coverings and installed floors (IEC 61340-4-1) EN ISO 1183-1, Plastics Methods for determining the density of non-cellular plastics Part 1: Immersion method, liquid pyknometer method and titration method (ISO 1183-1) EN ISO 11664-2, Colorimetry Part 2: CIE standard illuminants (ISO 11664-2

30、) 3 Terms and definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 high-pressure decorative laminate(s) HPL sheet(s) consisting of decorative surface layer(s) and core layers bonded together by an high pr

31、essure process Note 1 to entry: Typical values for the high pressure process are a temperature of 120 C and a pressure of 5 MPa. BS EN 438-3:2016EN 438-3:2016 (E) 5 3.1.2 surface layer upper decorative layer consisting in one or more sheets of fibrous material (usually paper) impregnated with aminop

32、lastic thermosetting resins (usually melamine based resins) Note 1 to entry: The back of the sheet(s) is made suitable for adhesive bonding to a substrate. 3.1.3 core layer fibrous material (usually paper) impregnated with thermosetting resins (usually phenolic based resins) 3.2 Symbols For the purp

33、oses of this document, the following symbol applies. t nominal thickness4 Material types The material types are: Type S - Standard grade decorative laminates. Type P - Postformable decorative laminates; similar to type S but can also be formed at elevated temperature. Type F - Decorative laminates w

34、ith improved fire retardance; similar to types S or P but also meeting special requirements of specified fire tests which may vary according to the application (e.g. construction, marine, transport) and the country of use (see 6.4.3 and Annex A). 5 Requirements 5.1 General Two different HPL classifi

35、cation systems are commonly used in Europe, and both have been included in this document as alternatives. 5.2 Numerical classification system In this system the classification of a letter denoting material type (see Clause 4) followed by three index numbers showing the levels of performance for wear

36、 resistance, impact resistance and scratch resistance respectively. Table 1 shows the performance levels corresponding to the index numbers. BS EN 438-3:2016EN 438-3:2016 (E) 6 Table 1 Numerical classification Initial Point (revs) First Index Number - Wear Resistance a2 3 4 50 150 350Small Diameter

37、Ball (N) Second Index Number - Impact Resistance a2 3 4 15 20 25 Scratch Resistance (Rating) Third Index Number - Scratch Resistance a2 3 4 2 3 4 aIndex numbers 2, 3, and 4 are specified to maintain consistency with EN 438:1991. Index number 1 represents a lower quality level that applies only for H

38、PL Type VG (Table 2) with smooth finishes. 5.3 Alphabetical classification systemThis system uses three letters to classify laminates as shown in Table 2. Table 2 Alphabetical classification First letter Second letter Third letter H (horizontal grade) or V (vertical grade)G (general purpose) or D (h

39、eavy duty) S (standard grade) or P (postformable grade) or F (flame-retardant grade) Table 3 compares the alternative classification systems and shows how different HPL products relate to some typical applications. The list of typical applications shown for each category is for guidance only and is

40、not intended to be comprehensive. BS EN 438-3:2016EN 438-3:2016 (E) 7 Table 3 Classification system and typical applications Performance category Material type Numerical classification index numbers Equivalent alphabetical classification Examples of typical applications Wear resistance Impact resist

41、ance scratch resistance Very high resistance to surface wearVery high resistance to impact Very high resistance to scratching S, F or P 4 4 4 HDS (horizontal heavy-duty standard)HDF (horizontal heavy-duty flame-retardant) HDP (horizontal heavy- duty postforming) counter tops, institutional applicati

42、ons (prisons, military barracks, etc.) High resistance to surface wear High resistance to impact High resistance to scratching S, F or P 3 3 3 HGS (horizontal general-purpose standard) HGF (horizontal general-purpose flame-retardant) HGP (horizontal general-purpose postforming) kitchen and office wo

43、rking surfaces, restaurant and hotel tables, doors and wall coverings in public areas, interior walls of public transport vehicles Medium resistance to surface wear Medium resistance to impact Medium resistance to scratching S, F or P 2 2 2 VGS (vertical general-purpose standard), VGF (vertical gene

44、ral- purpose flame-retardant) VGP (verticalgeneral-purpose postforming)front panels for kitchen, office and bathroom furniture, wall coverings, ceiling panels, shelves , and furniture elements Combinations of wear, impact and scratch resistance index numbers other than those shown in Table 3 are pos

45、sible and can be specified using the numerical classification system. In such cases properties other than wear resistance, impact resistance and scratch resistance shall meet the requirements specified for type VG in Table 5. 5.4 Nomenclature In addition to the abbreviation “HPL” and the number of t

46、his document, materials can be specified either by the numerical classification system, or by the alphabetical classification system. For example, horizontal general purpose postformable laminate can be specified as HPL/EN 438-3/P333 or HPL/EN 438-3/HGP. BS EN 438-3:2016EN 438-3:2016 (E) 8 6 Require

47、ments 6.1 Compliance Laminates classified in Table 3 shall meet all appropriate requirements specified in 6.2, 6.3 or 6.4. This applies to both full-size sheets and cut-to-size panels. 6.2 Inspection requirements 6.2.1 General Inspection shall be carried out in accordance with EN 438-2:2016, Clause

48、4 at a distance between 750 mm to 1500 mm. 6.2.2 Colour and pattern When inspected in daylight or D65 standard illuminant, as specified in EN ISO 11664-2, and also under tungsten filament lightning illuminant A as specified in EN ISO 11664-2, a slight difference between the corresponding colour refe

49、rence sample held by the supplier and the specimen under test is acceptable. NOTE Where colour and surface finish are critical, it is advised that sheets be checked for colour and surface-finish compatibility before fabrication or installation. 6.2.3 Surface finish When inspected at different viewing angles, there shall be no significant difference between the corresponding surface-finish reference sample held by the supplier and the specimen under test. The maximum permitted deviations for the glo

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