BS-EN-13559-2003.pdf

BRITISH STANDARD BS EN 13559:2003 Specifications for impact modified coextruded ABS/Acrylic sheets for baths and shower trays for domestic purposes The European Standard EN 13559:2003 has the status of a British Standard ICS 91.140.70 ? BS EN 13559:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 17 September 2003 © BSI 17 September 2003 ISBN 0 580 42645 9 National foreword This British Standard is the official English language version of EN 13559:2003. The UK participation in its preparation was entrusted to Technical Committee B/503, Sanitary appliances, which has the responsibility to: A list 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 Standards 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 does 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 developments 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 15 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 13559 September 2003 ICS 91.140.70 English version Specifications for impact modified coextruded ABS/Acrylic sheets for baths and shower trays for domestic purposes Spécifications relatives aux feuilles en acrylique et ABS coextrudées à résistance au choc modifiée pour baignoires et receveurs de douche à usage domestique Spezifizierung von coextrudierten schlagzäh-modifizierten PMMA/ABS-Platten für Badewannen und Duschwannen für den Hausgebrauch This European Standard was approved by CEN on 26 June 2003. 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 on application to the 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels © 2003 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13559:2003 E EN 13559:2003 (E) 2 Contents Page Foreword3 1Scope 4 2Normative references 4 3Terms and definitions4 4Requirements.4 4.1General requirements4 4.2Thickness5 4.3Heavy metal contents5 4.4Colour6 4.5Thermal stability.6 4.6Colour fastness6 4.6.1Resistance to UV light.6 4.6.2Resistance to hot water.6 4.7Chemical and stain resistance .6 4.8Resistance to wet and dry cycling.6 4.9Shrinkage6 4.10Resistance to stress cracking7 5Test methods7 5.1Determination of tensile strength.7 5.2Determination of thermal stability7 5.3Determination of colour fastness to hot water.7 5.4Determination of resistance to domestic chemicals and stains.8 5.4.1Reagents.8 5.4.2Apparatus .8 5.4.3Procedure .8 5.4.4Results 9 5.5Determination of resistance to wet and dry cycling.9 5.5.1Test pieces9 5.5.2Procedure .9 5.5.3Results 10 5.6Determination of resistance to stress cracking10 5.6.1General10 5.6.2Principle10 5.6.3Test specimens10 5.6.4Conditioning.10 5.6.5Pieces of cloth10 5.6.6Test fluid.10 5.6.7Flexural strain.11 5.6.8Test atmosphere 11 5.6.9Procedure .11 5.7Determination of water absorption 12 5.7.1Principle12 5.7.2Apparatus .12 5.7.3Test specimens13 5.7.4General conditions.13 5.7.5Procedure .13 5.7.6Expression of results 13 Bibliography15 EN 13559:2003 (E) 3 Foreword This document (EN 13559:2003) has been prepared by Technical Committee CEN /TC 163, “Sanitary appliances“ the secretariat of which is held by UNI. 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 March 2004, and conflicting national standards shall be withdrawn at the latest by March 2004. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. EN 13559:2003 (E) 4 1 Scope This European Standard specifies the properties of coextruded ABS sheets with impact modified acrylic top layer from which baths and shower trays for domestic purposes are manufactured. Note : For the purposes of this standard the term “domestic purposes“ includes use in hotels, accommodation for students, hospitals and similar buildings, except when special medical provisions are required. 2 Normative references This European standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed herafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. prEN ISO 15015:1997, Extruded sheets of impact-modified acrylonitrile/styrene copolymers, (ABS, AES or ASA). Requirements and test methods (ISO/DIS 15015: 1997). ISO 75-2. Plastics. Determination of temperature of deflection under load - Part 2: Plastics and ebonite. ISO 105-A02, Textiles. Tests for colour fastness. Part A02 Grey scale for assessing change in colour. ISO 179, Plastics. Determination of Charpy impact properties. ISO 527, Plastics. Determination of tensile properties. ISO 4892, Plastics. Methods of exposure to laboratory light sources. 3 Terms and definitions For the purpose of this standard, the following term and definition applies: 3.1 Coextruded impact modified PMMA/ABS sheet coextruded sheet with ABS substrate and a top layer of modified PMMA. 4 Requirements 4.1 General requirements The coextruded impact modified PMMA / ABS sheet shall comply with the requirements of table 1 when tested to the methods given in Table 1. EN 13559:2003 (E) 5 Table 1 General requirements for coextruded impact modified PMMA / ABS sheet PropertyTest method Test conditions UnitValue MinimumMaximum Tensile yield strength E modulus Heat distortion temperature (HDT) Impact resistance (tensile zone PMMA) Water absorption ISO 5271) ISO 5271) ISO 752) ISO 179 1fn (unnotched) § 5.7 of this standard 50 mm/min 1 mm/min with polishing 3) MPa MPa °C kJ/m2 mg 38 1800 100 20 - - - - - 40 1) ISO 527 as specified in 5.1 of this standard. 2) Annealing conditions: 24h at 80°C, then 16h at 23°C and 50% RH. Test flatwise with PMMA as surface layer on which the testing load is applicated. 3) Polishing conditions and specimen preparation according prEN 15015:1997 § 5.1.1. 4.2 Thickness The total thickness of coextruded impact modified PMMA / ABS sheet shall not be less than 2,7 mm. Tolerances on total thickness are given in Table 2. Table 2 Tolerance on total thickness for coextruded impact modified PMMA/ABS sheet Total thickness fromtoTolerance 2,84,0? 0,10 mm 4,16,0? 0,15 mm 6,19,0? 0,20 mm 9,111,0? 0,30 mm The minimum top layer thickness is 9 % of the total thickness of coextruded impact modified PMMA / ABS sheet for bathtub applications and 4 % of the total thickness of the coextruded impact modified PMMA / ABS sheet for shower tray applications. 4.3 Heavy metal contents Limit values for heavy metal contents of coextruded impact modified PMMA/ABS sheets for baths and shower trays are given in the European Directive 91/338. Informative note: 91/338/CEE: Council Directive of 19 June 1991 amending for the tenth time Directive 76/769/CEE The Approximation of the laws, regulations and administrative provisions of the member states relating to restriction of the marketing and use of certains dangerous substances and preparations. EN 13559:2003 (E) 6 4.4 Colour For coextruded impact modified PMMA / ABS sheets the top layer shall be transparent or coloured. In the case of coloured top layer, the colourant shall be incorporated during the manufacture of the sheet and the colour shall be throughout the thickness of the material. Colour standards shall be agreed between sheet manufacturer and fabricator. 4.5 Thermal stability When tested according to the method given in 5.2 the coextruded impact modified PMMA / ABS sheets shall show no evidence of blistering. 4.6 Colour fastness 4.6.1 Resistance to UV light When tested in apparatus complying with the requirements of the xenon arc lamp method of ISO 4892 for 250 h the colour change noted in the coextruded impact modified PMMA / ABS sheets shall be recorded in terms of the grey scale for assessing colour change specified in ISO 105-A02. The fastness rating shall be not less than grade 3. The xenon lamp shall only be used when its age is between the limits stated by the manufacturer of the lamp to be the useful life of the lamp or, where the useful life is not stated, is between 10 h and 600 h. 4.6.2 Resistance to hot water When tested in accordance with 5.3, the colour change noted in the coextruded impact modified PMMA / ABS sheets shall be recorded in terms of the grey scale for assessing colour change specified in ISO 105 A02.The fastness rating shall be not less than grade 3. 4.7 Chemical and stain resistance When tested in accordance with 5.4 coextruded impact modified PMMA / ABS sheets shall show no permanent staining or deterioration. 4.8 Resistance to wet and dry cycling When tested in accordance with 5.5 coextruded impact modified PMMA / ABS sheets shall not show any adverse changes in appearance such as blisters, crazes, cracks and discoloration. 4.9 Shrinkage When tested according to clause 5.7.2 of prEN ISO 15015:1997 with a temperature of 150°C instead of 170°C, the coextruded impact modified PMMA/ABS sheet shall show no change in length exceeding those given in table 3. Table 3 Permitted changes in length for coextruded impact modified PMMA/ABS sheets Maximum change in length % Sheet total thicknessIn extrusion directionCross direction extrusion 2,1 to 3,0102,5 3,1 to 4,082 4,1 to 6,072 ? 6,151 EN 13559:2003 (E) 7 4.10 Resistance to stress cracking The coextruded impact modified PMMA/ABS sheet shall be tested in accordance with the requirements of 5.6. The time at which the first crack appears shall be reported. 5 Test methods 5.1 Determination of tensile strength 5.1.1 The test pieces shall be as described in ISO 527, Type 1 B. They shall be cut so that their length is parallel to extrusion direction. The thickness of the test piece shall be that of the sheet from which it is cut and the width and the thickness shall be measured on the parallel portion of the test piece by means of a micrometer to the nearest 0,025 mm. 5.1.2 The test shall be carried out at a temperature of (23 ? 2)°C and the test pieces shall be conditioned to this temperature for at least two days before testing. 5.1.3 The speed of testing shall be (50 ? 1) mm/min (speed B). 5.1.4 The mean of three determinations shall be recorded as the tensile strength of the material but if a test piece breaks in the grips the result shall be disregarded and a further determination made. The tensile strength shall be determined according to ISO 527. 5.2 Determination of thermal stability Hang two sheets 300 mm square, taken from the coextruded impact modified PMMA / ABS sheet, in a circulating oven at (165 ? 5)°C for 20 minutes when this nominal temperature is reached. Remove the sheets from the oven, allow them to cool to room temperature while hanging vertically and visually examine them for the presence of blisters. If defects are present, repeat the test on new samples with preconditionning at (80 ? 2)°C for 16h. 5.3 Determination of colour fastness to hot water 5.3.1 Cut a test piece 100 mm x 25 mm from the coextruded impact modified PMMA / ABS sheet and fix in a suitable carrier. Immerse the test piece in a water bath maintained at (60 ? 2)°C for 30 min, remove and allow to drain and dry out in air for 30 min. 5.3.2 Repeat the cycle 100 times without interruption. 5.3.3 Allow 48 h for the test piece to dry out before it is compared with a sample of the sheet from which it was cut. 5.3.4 The colour fastness of the material shall be recorded in terms of the grey scale for assessing colour change specified in ISO 105-A02. EN 13559:2003 (E) 8 5.4 Determination of resistance to domestic chemicals and stains 5.4.1 Reagents The list of reagents is given in table 4. Each aqueous solution shall be prepared immediately before application. The reagents shall be made up and applied at (23 ? 5) °C. Table 4 Reagents FamilyProductConcentration AcidsAcetic acid10% v/v AlkalisNaOH10% m/m AlcoholEthanol70% v/v BleachesNaOCl5% available chlorine Staining agentMethylene Blue1% m/m 5.4.2 Apparatus 5.4.2.1 Borosilicate watch glasses 40 mm nominal diameter 5.4.2.2 Pipettes 5.4.2.3 Cleaning device The cleaning device is shown in figure 1. It comprises a synthetic flexible open cell foam disc of 75 mm diameter and 15 mm thick. Use any rotating device applying a mass of (1000 ? 50)g which losely fits with the device. The lateral cleaning force shall only be that exerted by the mass of the cleaning device; this can be effected by a floating action between the drive shaft and the disc. 5.4.2.4 Test specimens Specimens shall measure (100 ? 5) mm x (100 ? 5) mm. 5.4.3 Procedure Use a