1、BRITISH STANDARD BS EN 438-6:2005 High-pressure decorative laminates (HPL) Sheets based on thermosetting resins (Usually called Laminates) Part 6: Classification and specifications for Exterior-grade Compact laminates of thickness 2 mm and greater The European Standard EN 438-6:2005 has the status o
2、f a British Standard ICS 83.140.20 BS EN 438-6:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 26 July 2005 BSI 26 July 2005 ISBN 0 580 45457 6 National foreword This British Standard is the official English language version of EN 438-6:
3、2005. BS EN 438-6:2005 together with BS EN 438 Parts 1 to 5 and 7 supersedes BS EN 438-1:1991 and BS EN 438-2:1991 which are withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/76, Laminated sheet for decorative purposes, which has the responsibility to: A lis
4、t of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standar
5、ds Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard d
6、oes not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European dev
7、elopments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 12, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments
8、 issued since publication Amd. No. Date Comments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 438-6 January 2005 ICS 83.140.20 Supersedes EN 438-1:1991, EN 438-2:1991 English version High-pressure decorative laminates (HPL) - Sheets based on thermosetting resins (Usually called Laminates) -
9、Part 6: Classification and specifications for Exterior-grade Compact laminates of thickness 2 mm and greater Stratifis dcoratifs haute pression (HPL) - Plaques base de rsines thermodurcissables (communment appeles stratifis) - Partie 6 : Classification et spcifications des stratifis compacts pour us
10、age en extrieur dpaisseur gale ou suprieure 2 mm Dekorative Hochdruck-Schichtpressstoffplatten (HPL) - Platten auf Basis hrtbarer Harze (Schichtpressstoffe) - Teil 6: Klassifizierung und Spezifikationen fr Kompakt- Schichtpressstoffe fr die Anwendung im Freien mit einer Dicke von 2 mm und grer This
11、European Standard was approved by CEN on 16 August 2004. 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 reference
12、s concerning such national standards may be obtained on application to the Central Secretariat 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 i
13、ts own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Lu
14、xembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights o
15、f exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 438-6:2005: EEN 438-6:2005 (E) 2 Contents page Foreword. 3 1 Scope 4 2 Normative references . 4 3 Term and definition. 4 4 Material types and classification system . 5 5 Requirements 5 5.1 Compliance
16、 5 5.2 Inspection requirements 5 5.3 Dimensional tolerance requirements 6 5.4 Test requirements . 7 Annex A (informative) Addendum to Clause 5.4.3, relating to fire performance. 10 Table A.1 Typical EN 13501-1 classifications of Exterior-grade Compact laminates. 10 Annex B (informative) Assessment o
17、f conformity 11 Bibliography . 12 EN 438-6:2005 (E) 3 Foreword This document (EN 438-6:2005) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the secretariat of which is held by IBN. This European Standard shall be given the status of a national standard, either by publication of an i
18、dentical text or by endorsement, at the latest by July 2005, and conflicting national standards shall be withdrawn at the latest by July 2005. This document supersedes EN 438-1:1991 and EN 438-2:1991. This Standard consists of seven parts: Part 1: Introduction and general information Part 2: Determi
19、nation 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 l
20、aminates 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 According to
21、the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxe
22、mbourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 438-6:2005 (E) 4 1 Scope This Part of EN 438 applies to Exterior-grade Compact laminates of thickness 2mm and greater. It specifies requirements for standard and flame-retardan
23、t laminates intended for use under outdoor weather conditions such as direct sunlight rain and frost. Two levels of performance are specified; one for moderate exterior conditions, and the other for severe exterior conditions. Laminates complying with this Part of EN 438 are referred to as Exterior-
24、grade Compact laminates, and are characterized by their high tensile strength, high impact resistance, thermal shock resistance, and resistance to weather and corrosion. They are available in a variety of decorative colours, with high resistance to colour change and aging in outdoor applications. Wh
25、en they are self-supporting Exterior-grade Compact laminates are ready for installation, and only require cutting to size, drilling, etc. to suit the application. EN 438-2 specifies the methods of test relevant to this part of EN 438. 2 Normative references The following referenced documents are ind
26、ispensable for the application of this 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, High-pressure decorative laminates (HPL) Sheets based on thermosetting resins (Us
27、ually called Laminates) Part 2: Determination of properties EN ISO 178, Plastics Determination of flexural properties (ISO 178:2001) EN ISO 527-2:1996, Plastics Determination of tensile properties Part 2: Test conditions for moulding and extrusion plastics (ISO 527-2:1993 including Corr 1:1994) EN I
28、SO 1183-1:2004, Plastics Methods for determining the density of non-cellular plastics - Part 1: Immersion method, liquid pyknometer method and titration method (ISO 1183:2004) 3 Term and definition For the purposes of this document, the following term and definition applies: 3.1 high-pressure decora
29、tive exterior-grade compact laminate(s) (HPL) sheet(s) consisting of layers of cellulosic fibrous material (e.g. paper) impregnated with thermosetting resins and bonded together by the high pressure process described below. The surface layer(s) on one or both sides, having decorative colours or desi
30、gns, are impregnated with suitable thermosetting resins (aminoplastic based resins or others). A suitable outer layer or coating may be added to enhance weather and light protecting properties. The core layers are impregnated with phenolic based resins, and may be combined with other fibres and/or f
31、illers during the manufacturing process The high pressure process is defined as the simultaneous application of heat (temperature 120 C) and high specific pressure ( 5 MPa), to provide flowing and subsequent curing of the thermosetting resins to obtain a homogeneous non-porous material with increase
32、d density ( 1,35 g/cm), and with the required surface finish. EN 438-6:2005 (E) 5 4 Material types and classification system Exterior-grade Compact laminates are defined using the three letter classification system shown in Table 1. Table 1 Classification system FIRST LETTER SECOND LETTER THIRD LETT
33、ER G (MODERATE USE) or D (SEVERE USE) S (STANDARD GRADE) or F (FLAME-RETARDANT GRADE) E (EXTERIOR GRADE) For example an Exterior-grade flame-retardant HPL for severe outdoor conditions is specified as HPL/prEN 438-6/EDF. Laminate grades EGS and EGF are intended for moderate outdoor conditions, for e
34、xample applications involving medium term exposure to average levels of sunlight and weathering. Laminate grades EDS and EDF are intended for severe outdoor conditions, for example applications involving long term exposure to strong sunlight and weather. 5 Requirements 5.1 Compliance Exterior-grade
35、Compact laminate types EGS, EGF, EDS and EDF shall meet all appropriate requirements specified in Clauses 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, Test Method
36、4 at a distance of 1,5 m. 5.2.2 Colour and pattern When inspected in daylight or D65 standard illuminant and again under tungsten illuminant F, there shall be no significant difference between the corresponding colour reference sample held by the supplier and the specimen under test. NOTE Where colo
37、ur and surface finish are critical, it is recommended that sheets be checked for colour and surface finish compatibility 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-fin
38、ish reference sample held by the supplier and the specimen under test. NOTE Where colour and surface finish are critical, it is recommended that sheets be checked for colour and surface finish compatibility before fabrication or installation. EN 438-6:2005 (E) 6 5.2.4 Visual inspection 5.2.4.1 Gener
39、al The following inspection requirements are intended as a general guide, indicating the minimum acceptable quality for each decorative face of a laminate supplied as a full-size sheet. Cut-to-size panels and certain applications involving full-size sheets may call for special quality requirements w
40、hich can be negotiated between supplier and purchaser; in such cases the following requirements may be used as a basis for agreement. It should be noted that 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
41、. It may be agreed between purchaser and supplier that the visual quality standard applies to one decorative face only. 5.2.4.2 Surface quality The following surface defects are permissible: Dirt, spots and similar surface defects The admissible size of such defects is based on a maximum contaminati
42、on area equivalent to 2,0 mm 2 /m 2of laminate and is proportional to the sheet size under inspection. The total admissible area of contamination may be concentrated in one spot or dispersed over an unlimited amount of smaller defects. Fibres, hairs and scratches The admissible size of defects is ba
43、sed on a maximum contamination length equivalent to 20 mm/m 2of laminate and is proportional to the sheet size under inspection. The total admissible length of contamination may be concentrated in one defect or dispersed over an unlimited amount of smaller defects. 5.2.4.3 Edge quality Edge chipping
44、 up to 3 mm on each side is permissible. 5.3 Dimensional tolerance requirements Dimensional tolerance requirements are specified in Table 2. EN 438-6:2005 (E) 7 Table 2 Dimensional tolerances Property Test method (EN 438-2, Clause no.) Requirement maximum variation 2,0 t 3,0 mm: 0.20 mm 3,0 t 5,0 mm
45、: 0.30 mm 5,0 t 8,0 mm: 0.40 mm 8,0 t 12,0 mm: 0.50 mm 12,0 t 16,0 mm: 0.60 mm 16,0 t 20,0 mm: 0.70 mm 20,0 t 25,0 mm: 0.80 mm Thickness 5 25,0 t to be agreed between supplier and customer. Flatness a)9 2,0 t 6,0 mm: maximum deviation 8,0 mm/m 6,0 t 10,0 mm: 5,0 mm/m 10,0 t : 3,0 mm/m Length and wid
46、th b)6 + 10 mm/ 0 mm Straightness of edges b)7 1,5 mm/m maximum deviation Squareness b)8 1,5 mm/m maximum deviation a) Provided that the laminates are stored in the manner and conditions recommended by the manufacturer they shall comply with the flatness requirements specified in Table 2 when measur
47、ed in accordance with EN 438-2:2005 Clause 9.The flatness values specified in Table 2 apply to laminates with two decorative faces. Limits for laminates with one Face sanded shall be agreed between supplier and customer. b)Tolerances for cut-to-size panels shall be agreed between supplier and purcha
48、ser. Note : (where t = nominal thickness)5.4 Test requirements 5.4.1 Physical property requirements Physical property requirements are specified in Table 3. EN 438-6:2005 (E) 8 Table 3 Physical property requirements Laminate grade EGS and EGF and Property Test method (EN 438-2, Clause no. unless oth
49、erwise stated) Property or attribute Unit (max. or min.) EDS EDF Flexural modulus EN ISO 178:2003 a)Stress MPa (min) 9000 9000 Flexural strength EN ISO 178:2003 a)Stress MPa (min) 80 80 Tensile strength EN ISO 527- 2:1996 b)Stress MPa (min) 60 60 Density EN ISO 1183- 1:2004 Density g/cm 3(min) 1,35 1,35 mm (min) 2 t 6mm 1400 14006 t mm 1800 1800 Resistance to impact by large diameter ball (shatter resist
