1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 14617-12:2012Agglomerated stone TestmethodsPart 12: Determination of dimensionalstabilityBS EN 14617-12:2012 BRITISH STANDARDNational forewordThis British Standard is the U
2、K implementation of EN 14617-12:2012.It supersedes BS EN 14617-12:2005 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/545, Natural stone.A list of organizations represented on this committee can beobtained on request to its secretary.This publication
3、 does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 75921 5ICS 91.100.15Compliance with a British Standard cannot confer immunity fromleg
4、al obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2012.Amendments issued since publicationDate Text affectedBS EN 14617-12:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14617-12 April 2012 ICS 91.100.15 Supersede
5、s EN 14617-12:2005English Version Agglomerated stone - Test methods - Part 12: Determination of dimensional stability Pierre agglomre - Mthodes dessai - Partie 12: Dtermination de la stabilit dimensionnelle Knstlich hergestellter Stein - Prfverfahren - Teil 12: Bestimmung der Mahaltigkeit This Europ
6、ean Standard was approved by CEN on 9 March 2012. 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 conce
7、rning such national standards may be obtained on application to the CEN-CENELEC 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 int
8、o its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Irela
9、nd, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue M
10、arnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14617-12:2012: EBS EN 14617-12:2012EN 14617-12:2012 (E) 2 Contents Page Foreword 31 Scope 52 Normative references 53 Principle 54 Apparatus .55 Test con
11、ditions 66 Test specimens 67 Test procedure .78 Expression of results 79 Test report 8Annex A (normative) Test method for tiles below 12 mm .9Annex B (informative) Choice of the adhesive 10Bibliography . 12BS EN 14617-12:2012EN 14617-12:2012 (E) 3 Foreword This document (EN 14617-12:2012) has been p
12、repared by Technical Committee CEN/TC 246 “Natural stones”, 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 October 2012, and conflicting national standard
13、s shall be withdrawn at the latest by October 2012. 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 such patent rights. This document supersedes EN 14617-
14、12:2005. Clauses 1 and 3, 4.1, 4.2, 4.3, 4.4 and Clauses 5 to 8 have been modified since the last edition of this European Standard. A new Annex A (normative) has been added, the Annex B (informative) has been modified since the last edition (Annex A) and 4.5 has been deleted. This European Standard
15、 is one of a series of standards for test methods for agglomerated stones which includes the following: EN 14617-1, Agglomerated stone Test methods Part 1: Determination of apparent density and water absorption EN 14617-2, Agglomerated stone Test methods Part 2: Determination of flexural strength (b
16、ending) EN 14617-4, Agglomerated stone Test methods Part 4: Determination of the abrasion resistance EN 14617-5, Agglomerated stone Test methods Part 5: Determination of freeze and thaw resistance EN 14617-6, Agglomerated stone Test methods Part 6: Determination of thermal shock resistance EN 14617-
17、8, Agglomerated stone Test methods Part 8: Determination of resistance to fixing (dowel hole) EN 14617-9, Agglomerated stone Test methods Part 9: Determination of impact resistance EN 14617-10, Agglomerated stone Test methods Part 10: Determination of chemical resistance EN 14617-11, Agglomerated st
18、one Test methods Part 11: Determination of linear thermal expansion coefficient EN 14617-12, Agglomerated stone Test methods Part 12: Determination of dimensional stability EN 14617-13, Agglomerated stone Test methods Part 13: Determination of electrical resistivity EN 14617-15, Agglomerated stone T
19、est methods Part 15: Determination of compressive strength EN 14617-16, Agglomerated stone Test methods Part 16: Determination of dimensions, geometric characteristics and surface quality of modular tiles According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
20、following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, BS EN 14617-12:2012EN 14617-12:2012 (E) 4 Lithuania, Luxembourg, Malta, Nether
21、lands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 14617-12:2012EN 14617-12:2012 (E) 5 1 Scope This European Standard specifies the test method to be used for the determination of the dimensional stability and warping of agg
22、lomerated stones when in contact with water. This European Standard applies to agglomerated stones to be installed by adhesive on walls and floors. The test is mainly performed to classify the material according to the degree of sensitivity to water and to select a suitable adhesive for the correct
23、laying of agglomerated stones. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the reference
24、d document (including any amendments) applies. Not applicable. 3 Principle The principle of this method consists in measuring the vertical displacement of one corner of the tile using a wet felt placed on the backside of the agglomerated stone to simulate the contact with water. A series of sensors
25、carries out the measurement of the deformation caused by the humidity released by the cloth. 4 Apparatus 4.1 A suitable instrument (see Figure 1) consisting of: 4.1.1 A flat and smooth reference plane. 4.1.2 Three supports for the tile. 4.1.3 Four digital gauges with an accuracy of 0,01 mm for the n
26、ormative part (see Figure 1). For the informative part see Annex B where five digital gauges are required. 4.2 A cloth or a felt. 4.3 A water spray dispenser. 4.4 A polyethylene film. BS EN 14617-12:2012EN 14617-12:2012 (E) 6 Key M1, M2, M3, M4 digital gauges (4.1.3) B lateral supports C reference p
27、lane (4.1.1) D agglomerated stone F felt (4.2) G Polyethylene film (4.4) Y weight or clamp * supports (4.1.2) Figure 1 Apparatus for the measurement of tile deformation 5 Test conditions Standard conditions shall be (23 2) C and 50 % RH. 6 Test specimens The warping tendency of the material changes
28、depending on the size and thickness of the tile, as well as on its humidity content. BS EN 14617-12:2012EN 14617-12:2012 (E) 7 Therefore, in order to obtain reliable results: the size of the tile shall be 300 mm 300 mm with the same thickness used for installation; NOTE For thicknesses below 12 mm,
29、considering that these types of tiles are not self-supporting, testing should be carried out in accordance with Annex A. before being tested, the test specimens shall be stored separately, in vertical position, for at least 24 h under standard conditions. (For tiles that are very wet before storage
30、in standard conditions, it is necessary to dry the test specimens for 12 h at 50 C.) 7 Test procedure Before testing the sample, check its planarity. The tile shall be placed upside down on the three supports (4.1.2) that are positioned on the reference plane (4.1.1) near the corners and fixed with
31、the weight or the clamp (Y). Four digital gauges are to be positioned in contact with the tile as showed in Figure 1. Digital gauge (M3), placed at 5 mm from both sides of the corner, measures the deformation of the free corner, while digital gauge (M1) measures the deformation at the centre of the
32、tile. Digital gauges (M2) and (M4) measure the tile expansion. A wet cloth or felt (F), reproducing the humidity of a traditional mortar bed or of a cementitious adhesive, is placed on the back of the tile and a polyethylene film (G) is placed over the felt to avoid fast evaporation. During the test
33、 the cloth or the felt shall be kept constantly wet by a water spray dispenser. Deformations are recorded from the digital gauges (4.1.3) after a period of 6 h. 8 Expression of results 6 h after applying the wet felt the deformation is determined to an accuracy of 0,1 mm using the following formula:
34、 D = |d(3) d(1)| (1) where D is the vertical displacement; d(3) is the deformation measured by digital gauge (3); d(1) is the deformation measured by digital gauge (1). According to the measured deformation in any of the sizes of tiles tested, the agglomerated stones are classified as in Table 1. BS
35、 EN 14617-12:2012EN 14617-12:2012 (E) 8 Table 1 Classification of agglomerated stones according to the vertical displacement Class Description Vertical displacementA Stable and not sensitive to humidity D = 0,3 mm, a water-free, reaction resin adhesive (type R according to EN 12004) should be used.
36、Class C The material is “very” sensitive to contact with water. For the installation a water-free, reaction resin adhesive (type R according to EN 12004) should be used. BS EN 14617-12:2012EN 14617-12:2012 (E) 11 Key M1, M2, M3, M4, M5 digital gauges (4.1.3) C reference plane (4.1.1) D agglomerated
37、stone B non absorbing substrate A adhesive Figure B.1 Bonding test BS EN 14617-12:2012EN 14617-12:2012 (E) 12 Bibliography 1 EN 12004, Adhesives for tiles Requirements, evaluation of conformity, classification and designation 2 EN 14411, Ceramic tiles Definitions, classification, characteristics and
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