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1、BRITISH STANDARD BS EN 263:2008 Sanitary appliances Crosslinked cast acrylic sheets for baths and shower trays for domestic purposes ICS 83.140.10; 91.140.70 ? BS EN 263:2008 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2008 BSI 2
2、008 ISBN 978 0 580 57507 5 National foreword This British Standard is the UK implementation of EN 263:2008. It supersedes BS EN 263:2002 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee B/503, Sanitary appliances. A list of organizations represented on
3、 this committee can be obtained on request to its secretary. 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 cannot confer immunity from legal obligations. Amendments/corrig
4、enda issued since publication DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 263 February 2008 ICS 83.140.10; 91.140.70Supersedes EN 263:2002 English Version Sanitary appliances - Crosslinked cast acrylic sheets for baths and shower trays for domestic purposes Appareils sanitaires
5、 - Feuilles dacrylique rticules coules pour baignoires et receveurs de douche usage domestique Sanitrausstattungsgegenstnde - Vernetzte gegossene Acrylplatten fr Badewannen und Duschwannen fr den Hausgebrauch This European Standard was approved by CEN on 12 January 2008. CEN members are bound to com
6、ply 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 Manage
7、ment 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 Management Centre has the same status as th
8、e official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovak
9、ia, 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 2008 CENAll rights of exploitation in any form and by any means reserved worldwide
10、for CEN national Members. Ref. No. EN 263:2008: E EN 263:2008 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references4 3 Requirements.4 3.1 General requirements4 3.2 Thickness .4 3.3 Heavy metal content5 3.4 Colour .5 3.5 Thermal stability 5 3.6 Colour fastness5 3.6.1 Resistance to UV light.5
11、 3.6.2 Resistance to hot water 5 3.7 Resistance to chemicals and stains5 3.8 Resistance to wet and dry cycling.5 4 Test methods5 4.1 Determination of tensile strength 5 4.2 Determination of thermal stability6 4.3 Determination of colour fastness to hot water.6 4.4 Determination of resistance to chem
12、icals and stains6 4.4.1 Reagents.6 4.4.2 Apparatus .6 4.4.3 Procedure .7 4.4.4 Results8 4.5 Determination of resistance to wet and dry cycling 8 4.5.1 Test specimens8 4.5.2 Procedure .8 4.5.3 Results8 4.6 Verification of crosslinking.8 4.7 Determination of water absorption8 4.7.1 Principle8 4.7.2 Ap
13、paratus .9 4.7.3 Test specimens9 4.7.4 General conditions 9 4.7.5 Procedure .9 4.7.6 Expression of results 9 BS EN 263:2008 ? EN 263:2008 (E) 3 Foreword This document (EN 263:2008) has been prepared by Technical Committee CEN/TC 163 “ Sanitary appliances” , the secretariat of which is held by UNI. T
14、his 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 2008, and conflicting national standards shall be withdrawn at the latest by August 2008. Attention is drawn to the possibility that some of t
15、he 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 263:2002. The performance criteria for baths and shower trays for domestic purposes made from crosslinked cast
16、 acrylic sheets are divided into two European Standards as follows: prEN 198 Sanitary appliances - Baths made from crosslinked cast acrylic sheets - Requirements and test methods. prEN 249 Sanitary appliances - Shower trays made from crosslinked cast acrylic sheets - Requirements and test methods. T
17、his revised version of EN 263 includes the following amendments, compared to the version of 2002: Deletion of reference to ISO 62 standard for water absorption test and replacement with the description of the test itself. Modification of eosine concentration in resistance to chemical and stains test
18、. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy
19、, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 263:2008 ? EN 263:2008 (E) 4 1 Scope This European Standard specifies requirements and test methods for cross-linked cast acrylic sheet
20、s (called acrylic sheets hereafter) 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 provisio
21、ns are required. 2 Normative references The following referenced documents are indispensable 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 20105-
22、A02, Textiles - Tests for colour fastness - Part A02: Grey scale for assessing change in colour (ISO 105-A02:1993) EN ISO 306, Plastics - Thermoplastic materials - Determination of Vicat softening temperature (VST) (ISO 306:2004) EN ISO 527-2, Plastics - Determination of tensile properties - Part 2:
23、 Test conditions for moulding and extrusion plastics (ISO 527-2:1993 including Corr 1:1994) EN ISO 4892-2, Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps (ISO 4892-2:2006) 3 Requirements 3.1 General requirements The acrylic sheet shall comply with the requiremen
24、ts given in Table 1. Table 1 - General requirements Property Test method Requirement Vicat softening point EN ISO 306 1) 105C Water absorption 4.7 of this standard 40 mg Tensile strength Cross-linking EN ISO 527-2 and 4.1 of this standard 4.6 of this standard 60 MPa no sign of dissolving or sticking
25、 1) Method B 50, temperature raised at a rate of (50 5)C/h. 3.2 Thickness The thickness of the acrylic sheet shall be not less than 2,7 mm. The maximum tolerance on thickness h shall be (0,4 + 0,1h), h being the nominal sheet thickness in mm. BS EN 263:2008 ? EN 263:2008 (E) 5 3.3 Heavy metal conten
26、t Heavy metal contents of crosslinked cast acrylic sheets for baths and shower trays should be lower than those defined in the European Directive 91/338/EEC. 3.4 Colour The acrylic sheets shall be transparent or coloured. In the case of coloured sheet, the colourant shall be incorporated during the
27、manufacture of the sheet and the colour shall be throughout the thickness of the material. 3.5 Thermal stability When tested by the method given in 4.2, the acrylic sheet shall show no evidence of blistering. 3.6 Colour fastness 3.6.1 Resistance to UV light When tested according to EN ISO 4892-2 wit
28、h an irradiance of 0,5 GJ/m2 in the wavelength range of 290 nm to 800 nm, the colour change noted in the acrylic sheet shall be recorded in terms of the grey scale for assessing colour change specified in EN 20105-A02. The fastness rating shall be not less than grade 3. 3.6.2 Resistance to hot water
29、 When tested in accordance with 4.3, the colour change noted in the acrylic sheet shall be recorded in terms of the grey scale for assessing colour change specified in EN 20105-A02. The fastness rating shall be not less than grade 3. 3.7 Resistance to chemicals and stains When tested in accordance w
30、ith 4.4, the acrylic sheet shall show no permanent staining or deterioration. 3.8 Resistance to wet and dry cycling When tested in accordance with 4.5, the acrylic sheet shall not show any adverse changes in appearance such as blisters, crazes, cracks and discoloration. 4 Test methods 4.1 Determinat
31、ion of tensile strength The test specimen shall be of type 1B according to EN ISO 527-2. The thickness of the test specimen shall be that of the sheet from which it is cut. The test shall be carried out at a temperature of (23 2)C and the test specimens shall be conditioned to this temperature for a
32、t least two days before testing. The speed of testing shall be (5 1) mm/min. The mean of five determinations shall be recorded as the tensile strength of the material but if a test specimen breaks in the grips the result shall be disregarded and a further determination made. The tensile strength sha
33、ll be calculated by dividing the breaking load by the cross-sectional area of the specimen before testing. BS EN 263:2008 ? EN 263:2008 (E) 6 4.2 Determination of thermal stability Hang two sheets 300 mm square, taken from the acrylic sheet, in a circulating oven at (200 5)C for 20 min when this nom
34、inal 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 blistering occurs, repeat the test using two new specimens which have been preconditioned at (80 2)C for 16 h. 4.3
35、Determination of colour fastness to hot water Cut a test specimen 100 mm x 25 mm from the acrylic sheet and fix in a suitable carrier. Immerse the test specimen in a water bath maintained at (60 2)C for 30 min, remove and allow to drain and dry in air for 30 min. Repeat the cycle one hundred times w
36、ithout interruption. Allow 48 h for the test specimen to dry out before it is compared with a sample of the sheet from which it was cut. The colour fastness of the material shall be recorded in terms of the grey scale for assessing colour change specified in EN 20105-A02. 4.4 Determination of resist
37、ance to chemicals and stains 4.4.1 Reagents The list of reagents is given in Table 2. Each aqueous solution shall be prepared immediately before application. The reagents shall be made up and applied at (23 5) C. Table 2 - Reagents Family Product Concentration Acids Acetic acid Volume fraction of 10
38、% Alkalis NaOH Mass fraction of 10% Alcohol Ethanol Volume fraction of 70% Bleaches NaOCl 5% available chlorine Staining agent Methylene Blue Mass fraction of 1% 4.4.2 Apparatus 4.4.2.1 Borosilicate watch glasses 40 mm nominal diameter 4.4.2.2 Pipettes 4.4.2.3 Cleaning device This is shown in Figure
39、 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 (1 000 50) g which loosely fits with the device. The lateral cleaning force shall only be that exerted by the mass of the cleaning device; this can be affected by a
40、 floating action between the drive shaft and the disc. BS EN 263:2008 ? EN 263:2008 (E) 7 Key 1 square axle, a = b 1 mm 2 foam a inner dimension b outer dimension Figure 1 - Detail of cleaning apparatus 4.4.2.4 Test specimens Specimens shall measure (100 5) mm x (100 5) mm. 4.4.3 Procedure Use a sep
41、arate test specimen for each reagent test. Clean the test area thoroughly with hot soapy water, rinse and dry with a clean soft cloth. On each test specimen deposit a drop of the test solution. Cover the drop thus formed with a watch glass concave downwards. The drop size shall be determined in orde
42、r to be completely covered by the watch glass. Allow to act for a time of (120 5) min, at a temperature of (23 5)C with the test areas protected from the affects of sunlight. Thoroughly rinse the test specimen with demineralized water and check for adverse changes in appearance by visual examination
43、. If deterioration exists, dip the foam disc of the cleaning device into demineralized water and place it on the surface to be cleaned. Rotate the device at 60 min-1. Clean for thirty revolutions. Rinse with demineralized water and visually examine the test area. If deterioration persists repeat the
44、 cleaning process with an abrasive agent added to demineralized water. This abrasive agent is defined as follows: alumina used for surface polishing, with particle size comprised between 0,1 m and 2 m and centred on 0,5 m. BS EN 263:2008 ? EN 263:2008 (E) 8 4.4.4 Results Note whether or not the reag
45、ent causes a stain or deterioration, whether or not such stain or deterioration is removed and if so with water or water with abrasive agent. If the stain is not removed by the water with abrasive agent record as permanently stained. 4.5 Determination of resistance to wet and dry cycling 4.5.1 Test
46、specimens The specimens to be tested shall be (100 2) mm2. Prior to commencing the test examine the show faces of the samples and mark any surface defects. 4.5.2 Procedure Place a maximum of ten specimens to be tested vertically in a suitable carrier and place the carrier in a suitable open containe
47、r. The carrier shall be arranged to avoid contact of one test specimen with another. Pour 2 l of boiling water into the container. Test specimens must be covered. Leave the test specimens in the water for (8 0,25) h whilst allowing cooling to room temperature. Remove the test specimens from the wate
48、r, wipe the surfaces with a soft dampened cloth and place the test specimens for drying into an oven for (16 0,5) h at a temperature of (50 2) C. When placing the test specimens in the oven ensure they do not touch the oven walls or each other. Repeat this cycle twenty times using the same test spec
49、imens. In the event of an interruption of the test procedure, e.g. over the weekend, leave the test specimens in the oven at a temperature of (50 2)C. After twenty cycles brush over the show face of each test specimen with a solution of eosine (100 g/l in water) to which is added 1 cm3/l of liquid detergent using a soft sponge or a paint brush. Leave the solution