EN 438-9:2017

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Dekorative Hochdruck-Schichtpressstoffplatten (HPL) - Platten auf Basis härtbarer Harze (Schichtpressstoffe) - Teil 9: Klassifizierung und Spezifikationen für Schichtpressstoffe mit alternativem KernaufbauStratifiés décoratifs haute pression (HPL) - Plaques à base de résines thermodurcissables (communément appelées stratifiés) - Partie 9 : Classification et spécifications relatives aux stratifiés avec autres types d'âmesHigh-pressure decorative laminates (HPL) - Sheets based on thermosetting resins (usually called laminates) - Part 9: Classification and specifications for alternative core laminates83.140.20Laminated sheetsICS:Ta slovenski standard je istoveten z:EN 438-9:2017SIST EN 438-9:2018en,fr,de01-marec-2018SIST EN 438-9:2018SLOVENSKI
STANDARDSIST EN 438-9:2010+A1:20141DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 438-9
December
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z uä s v rä t r Supersedes EN
v u zæ {ã t r s r ªA sã t r s uEnglish Version
Classification and specifications for alternative core laminates spécifications relatives aux stratifiés avec autres types d 5âmes æ Teil
{ã Klassifizierung und Spezifikationen für Schichtpressstoffe mit alternativem Kernaufbau This European Standard was approved by CEN on
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egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
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CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
v u zæ {ã t r s y ESIST EN 438-9:2018

Contents Page
European foreword . 3 1 Scope . 5 2 Normative references . 5 3 Terms, definitions, symbols and abbreviations . 5 3.1 TERMS AND DEFINITIONS . 5 3.2 SYMBOLS . 6 4 Material types and classification system . 6 5 Requirements . 7 5.1 COMPLIANCE . 7 5.2 INSPECTION REQUIREMENTS . 7 5.3 DIMENSIONAL TOLERANCE REQUIREMENTS . 8 5.4 TEST REQUIREMENTS . 11 Annex A (informative) Information on reaction to fire . 15 Bibliography . 16
corrected; — for the Resistance to immersion in boiling water, the Appearance has been improved for the Laminate grades; — the Tesile strength, has been deleted to be in line with EN 438-4:2016; — in Table 6, for the Resistance to crazing, the Appearance of the Laminate grade has been corrected. 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 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 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: 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 SIST EN 438-9:2018

Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 high-pressure decorative alternative core laminate(s) alternative core laminate(s) HPL sheet(s) consisting of decorative surface layer(s) and alternative core layers bonded together by an high pressure process Note 1 to entry: Typical values for the high pressure process are a temperature of
120 °C and a pressure of
5 MPa. 3.1.2 surface layer upper decorative layer consisting in one or more sheets of fibrous material (usually paper) impregnated with aminoplastic thermosetting resins (usually melamine based resins) Note 1 to entry: The surface layers appear on one or both side(s) of the laminate(s). In case of one-sided laminates, the back of the sheet(s) can be made suitable for adhesive bonding to a substrate. SIST EN 438-9:2018

Symbols For the purposes of this document, the following symbol applies. t nominal thickness of the alternative core laminate 4 Material types and classification system Alternative core laminates are defined using a three-letter classification system as shown in Table 1. Table 1 — Alternative core laminate classification system First letter Second letter Third letter B
(Coloured core layer laminate) R
(Metal reinforced core layer laminate) C
(Compact) T
(Thin laminate < 2 mm) S
(Standard grade) or F
(Flame retardant grade) Type S – Standard grade high-pressure decorative alternative core laminates. Type F – High-pressure decorative alternative core laminates with improved fire retardance, similar to type S but also complying with special requirements of specified tests which may vary according to the application (e.g. construction, marine, transport) and the country of use (see 5.4.3). NOTE These types of laminate are normally not postformable. In addition to the abbreviation “HPL” and the number of this European Standard, materials are specified by the alphabetical classification system. EXAMPLE “Coloured core Standard Grade Thin high-pressure decorative laminate” is designated as
HPL/EN 438–9 BTS. SIST EN 438-9:2018

Compliance Alternative core layer laminates classified in Table 1 shall comply with all appropriate requirements specified in 5.2, 5.3 and 5.4. This applies to both full-size sheets and cut-to-size panels. 5.2
Inspection requirements 5.2.1
General Inspection shall be carried out in accordance with EN 438-2:2016, Clause 4, at a distance between 750 mm and 1 500 mm. 5.2.2
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 reference sample held by the supplier and the specimen under test is acceptable. When colour and surface finish are critical, it is recommended that sheets are checked for colour and surface-finish compatibility without protective film before fabrication or installation. 5.2.3
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. When colour and surface finish are critical, it is recommended that sheets are checked for colour and surface-finish compatibility without protective film before fabrication or installation. 5.2.4
Reverse side The reverse side of single-sided sheets shall be suitable for adhesive bonding (e.g. sanded). In the case of sanded backs, slight chatter marks shall be permitted. 5.2.5
Visual inspection 5.2.5.1 General The following inspection requirements are intended as a general guide, indicating the minimum acceptable quality for laminates. Cut-to-size panels and certain applications involving full-size sheets may call for special quality requirements which can be negotiated between supplier and purchaser; in such cases the following requirements may be used as a basis for agreement. Only a small percentage of sheets in a batch (the level to be agreed with the customer) should contain defects of the minimum acceptable level. It may be agreed between purchaser and supplier that the visual quality standard applies to one decorative face only. 5.2.5.2
Surface quality The following surface defects are permissible: a) dirt, spots and similar surface defe
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