1、BRITISH STANDARDBS EN 263:2008Sanitary appliances Crosslinked cast acrylic sheets for baths and shower trays for domestic purposesICS 83.140.10; 91.140.70g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55
2、g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 263:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2008 BSI 2008ISBN 978 0 580 57507 5National forewordThis British Standard is the UK implementation of EN 263:2008. It
3、 supersedes BS EN 263:2002 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/503, Sanitary appliances.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the
4、 necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 263February 2008ICS 83.
5、140.10; 91.140.70 Supersedes EN 263:2002 English VersionSanitary appliances - Crosslinked cast acrylic sheets for bathsand shower trays for domestic purposesAppareils sanitaires - Feuilles dacrylique rticules coulespour baignoires et receveurs de douche usagedomestiqueSanitrausstattungsgegenstnde -
6、Vernetzte gegosseneAcrylplatten fr Badewannen und Duschwannen fr denHausgebrauchThis European Standard was approved by CEN on 12 January 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a nati
7、onal standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in an
8、y other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Eston
9、ia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHE
10、S KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 263:2008: EEN 263:2008 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Requirements.4
11、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 3.6.2 Resistance to hot water 5 3.7 Resistance to chemicals and stains 5 3.8 Resistance to wet and dry cycling.5 4 Test methods5 4.1 Determina
12、tion 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 chemicals and stains6 4.4.1 Reagents.6 4.4.2 Apparatus .6 4.4.3 Procedure .7 4.4.4 Results 8 4.5 Determination of resistance to wet and dry cyclin
13、g 8 4.5.1 Test specimens8 4.5.2 Procedure .8 4.5.3 Results 8 4.6 Verification of crosslinking.8 4.7 Determination of water absorption 8 4.7.1 Principle8 4.7.2 Apparatus .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 263:2008EN 263:2008 (E)
14、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. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the lat
15、est 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 the 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 su
16、ch patent rights. This document supersedes EN 263:2002. The performance criteria for baths and shower trays for domestic purposes made from crosslinked cast acrylic sheets are divided into two European Standards as follows: prEN 198 Sanitary appliances - Baths made from crosslinked cast acrylic shee
17、ts - Requirements and test methods. prEN 249 Sanitary appliances - Shower trays made from crosslinked cast acrylic sheets - Requirements and test methods. This revised version of EN 263 includes the following amendments, compared to the version of 2002: Deletion of reference to ISO 62 standard for w
18、ater absorption test and replacement with the description of the test itself. Modification of eosine concentration in resistance to chemical and stains test. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this
19、 European Standard: 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, Slovakia, Slovenia, Spain, Sweden, Switzerland and the U
20、nited Kingdom. BS EN 263:2008EN 263:2008 (E) 4 1 Scope This European Standard specifies requirements and test methods for cross-linked cast acrylic sheets (called acrylic sheets hereafter) from which baths and shower trays for domestic purposes are manufactured. NOTE For the purposes of this standar
21、d, 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 The following referenced documents are indispensable for the application of this document. For dated refere
22、nces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 20105-A02, Textiles - Tests for colour fastness - Part A02: Grey scale for assessing change in colour (ISO 105-A02:1993) EN ISO 306, Plastics - Thermopla
23、stic materials - Determination of Vicat softening temperature (VST) (ISO 306:2004) EN ISO 527-2, Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and extrusion plastics (ISO 527-2:1993 including Corr 1:1994) EN ISO 4892-2, Plastics - Methods of exposure to labora
24、tory light sources - Part 2: Xenon-arc lamps (ISO 4892-2:2006) 3 Requirements 3.1 General requirements The acrylic sheet shall comply with the requirements given in Table 1. Table 1 - General requirements Property Test method Requirement Vicat softening point EN ISO 306 1) 105C Water absorption 4.7
25、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 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 max
26、imum tolerance on thickness h shall be (0,4 + 0,1h), h being the nominal sheet thickness in mm. BS EN 263:2008EN 263:2008 (E) 5 3.3 Heavy metal content Heavy metal contents of crosslinked cast acrylic sheets for baths and shower trays should be lower than those defined in the European Directive 91/3
27、38/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 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.
28、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 with an irradiance of 0,5 GJ/m2in the wavelength range of 290 nm to 800 nm, the colour change noted in the acrylic sheet shall be recorded in terms of th
29、e 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 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 cha
30、nge 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 with 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,
31、 the acrylic sheet shall not show any adverse changes in appearance such as blisters, crazes, cracks and discoloration. 4 Test methods 4.1 Determination 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
32、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 at 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
33、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 shall be calculated by dividing the breaking load by the cross-sectional area of the specimen before testing. BS EN 263:2008EN 263:2008 (E) 6 4.2 Determin
34、ation 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 nominal temperature is reached. Remove the sheets from the oven, allow them to cool to room temperature while hanging vertically and visually examine them fo
35、r 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 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 sp
36、ecimen 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 without 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 fastne
37、ss 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 resistance 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 applicati
38、on. 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% Alkalis NaOH Mass fraction of 10% Alcohol Ethanol Volume fraction of 70% Bleaches NaOCl 5% available chlorine Staining agent Methylene Blue Mass fractio
39、n 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 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
40、 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 floating action between the drive shaft and the disc. BS EN 263:2008EN 263:2008 (E) 7 Key 1 square axle, a = b 1 mm 2 foam a inner dimension b outer dime
41、nsion 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 separate 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
42、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 order 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 aff
43、ects of sunlight. Thoroughly rinse the test specimen with demineralized water and check for adverse changes in appearance by visual examination. 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
44、60 min-1. Clean for thirty revolutions. Rinse with demineralized water and visually examine the test area. If deterioration persists repeat the cleaning process with an abrasive agent added to demineralized water. This abrasive agent is defined as follows: alumina used for surface polishing, with pa
45、rticle size comprised between 0,1 m and 2 m and centred on 0,5 m. BS EN 263:2008EN 263:2008 (E) 8 4.4.4 Results Note whether or not the reagent 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 no
46、t 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 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.
47、2 Procedure Place a maximum of ten specimens to be tested vertically in a suitable carrier and place the carrier in a suitable open container. 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 covere
48、d. Leave the test specimens in the water for (8 0,25) h whilst allowing cooling to room temperature. Remove the test specimens from the water, 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 t
49、he 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 specimens. 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 for (5
